Pub Date : 2021-10-02DOI: 10.1080/10420940.2021.1998036
D. Silva, C. Vega, F. Vesely, D. Schemiko, Robson Tadeu Bolzon
Abstract Ichnology is fundamental to understanding characteristics of paleoenvironments such as hydrodynamic energy, oxygenation, salinity and substrate consistency. The Itararé Group is a Mississippian-Cisuralian lithostratigraphic unit of the Paraná Basin, in which trace fossils have been increasingly employed in paleoenvironmental reconstructions during the Late Paleozoic Ice Age in western Gondwana. The upper unit of the Itararé Group, the Rio do Sul Formation, exhibits a diverse trace fossil assemblage preserved in fine-grained rhythmites deposited in glacially related aquatic environments. In these rhythmites, trackways and trails produced by terrestrial and aquatic organisms were previously described. In this paper we report a new trace fossil collected from a rhythmite quarry near Trombudo Central, Santa Catarina state, and discuss potential paleoenvironmental implications. The studied specimen consists of an arthropod jumping trackway which could indicate a subaerial paleoenvironmental setting corroborating previous ichnological studies.
技术是理解古环境特征的基础，如水动力能、氧合、盐度和底物一致性。itarar群是帕拉南盆地的一个密西西比-西侏罗统岩石地层单元，其微量化石在冈瓦纳西部晚古生代冰期的古环境重建中得到了越来越多的应用。itarar群的上部单元，Rio do Sul组，在与冰川相关的水生环境中沉积的细粒节奏岩中保存了多种微量化石组合。在这些节律虫中，陆生和水生生物产生的轨道和小径在以前被描述过。本文报道了在美国圣卡塔琳娜州Trombudo中心附近的节律虫采石场收集到的一种新的痕迹化石，并讨论了其潜在的古环境意义。所研究的标本包括一个节肢动物跳跃轨迹，这可能表明一个陆上的古环境背景，证实了先前的技术研究。
{"title":"First occurrence of jumping trackway in upper Paleozoic glacially-related deposits, Paraná Basin, Brazil, and paleoenvironmental implications","authors":"D. Silva, C. Vega, F. Vesely, D. Schemiko, Robson Tadeu Bolzon","doi":"10.1080/10420940.2021.1998036","DOIUrl":"https://doi.org/10.1080/10420940.2021.1998036","url":null,"abstract":"Abstract Ichnology is fundamental to understanding characteristics of paleoenvironments such as hydrodynamic energy, oxygenation, salinity and substrate consistency. The Itararé Group is a Mississippian-Cisuralian lithostratigraphic unit of the Paraná Basin, in which trace fossils have been increasingly employed in paleoenvironmental reconstructions during the Late Paleozoic Ice Age in western Gondwana. The upper unit of the Itararé Group, the Rio do Sul Formation, exhibits a diverse trace fossil assemblage preserved in fine-grained rhythmites deposited in glacially related aquatic environments. In these rhythmites, trackways and trails produced by terrestrial and aquatic organisms were previously described. In this paper we report a new trace fossil collected from a rhythmite quarry near Trombudo Central, Santa Catarina state, and discuss potential paleoenvironmental implications. The studied specimen consists of an arthropod jumping trackway which could indicate a subaerial paleoenvironmental setting corroborating previous ichnological studies.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"15 1","pages":"259 - 270"},"PeriodicalIF":0.8,"publicationDate":"2021-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88638765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-02DOI: 10.1080/10420940.2021.1998037
Ricardo Melchor
SEVIIV2021 was a scientific webinar on vertebrate ichnology hosted by the Universidad Nacional de La Pampa and the Instituto de Ciencias de la Tierra y Ambientales de La Pampa, that was convened on five half-day sessions developed between June 14-18, 2021. This virtual activity was effective in facilitating discussions and interchange between experienced vertebrate ichnologists and graduate students. Spanish and Portuguese were the languages of this free seminar that included 33 talks and an average audience of 140 participants per day. Presentations were delivered by vertebrate ichnologists from nine countries, including Giuseppe Leonardi (Italy), Martin Lockley (USA), Silvério Figueiredo (Portugal); Félix Pérez Lorente, José Joaquín Moratalla García, Laura Piñuela, and Diego Castanera (Spain); Karen Moreno and Jorge Campos (Chile); Mariano Verde and Valeria Mesa (Uruguay); Eduardo Jiménez Hidalgo, Rosalía Guerrero, Felisa J. Aguilar Arellano, Víctor Manuel Bravo Cuevas, and Rubén Rodríguez de la Rosa (Mexico); Ismar de Souza Carvalho, Paula Dentzien-Dias, Caio César Rangel, and Heitor Francischini (Brazil); Teresa Manera, Bernardo González Riga, María Belén Tomaselli, Carlos Cónsole-Gonella, Silvina de Valais, Ignacio Díaz-Martínez, Paolo Citton, Jorge Orlando Calvo, María Cristina Cardonatto, Verónica Krapovickas, Nahuel Espinoza, Manuel Rojas Manriquez, and Arturo Heredia (Argentina). The topics covered were diverse including dinosaur tracks (perhaps the more common theme); protection of the ichnological heritage; factors affecting the formation and preservation of footprints; ichnotaxonomy; regional or basinal synthesis of the vertebrate ichnological record; paleoenvironmental, paleoecological and evolutionary aspects of vertebrate trace fossils; importance of osteological studies for the interpretation of tracks; modern and fossil tetrapod burrows; coprolites; and human footprints in archeological settings. The talks are stored in the CPA UNLPam YouTube channel, separated in individual links related to each day (day 1: https://youtu.be/-pa8-pTynW4, day 2: https://youtu.be/ fXCkozfTjzc, day 3: https://youtu.be/CExQVQ78iBE, day 4: https://youtu.be/ZgcuEI0DG-I, day 5: https:// youtu.be/orYEpDcPbtE). The talks and lively discussions invite some reflections on current aspects of the discipline, at least from the Latin ichnological community. It is well known that the approaches of invertebrate and vertebrate ichnology are different (e.g. Bromley, 2004; Lockley, 2007). This webinar also revealed that even between vertebrate ichnologists there are differences or shades in the purposes of the study of trace fossils and the methodology they employ. A good example of this fact is that several vertebrate ichnologists are reluctant to use or even do not “believe” in ichnotaxonomy. This position is probably linked with the complicated formative and taphonomical processes of footprints, and the resulting preservational variants (Marchetti et al., 2019),
SEVIIV2021是由La Pampa国立大学和La Pampa环境科学研究所主办的脊椎动物技术科学网络研讨会，于2021年6月14日至18日召开了五个半天的会议。这个虚拟活动有效地促进了经验丰富的脊椎动物技术专家和研究生之间的讨论和交流。西班牙语和葡萄牙语是这个免费研讨会的语言，包括33场演讲，平均每天有140名与会者。来自9个国家的脊椎动物技术专家发表了演讲，包括Giuseppe Leonardi(意大利)、Martin Lockley(美国)、silv rio Figueiredo(葡萄牙);fxlix penjoz Lorente, jos Joaquín Moratalla García, Laura Piñuela和Diego Castanera(西班牙);卡伦·莫雷诺和豪尔赫·坎波斯(智利);马里亚诺·韦德和瓦莱里亚·梅萨(乌拉圭);爱德华多·吉米·伊达尔戈、Rosalía格雷罗、费利萨·j·阿吉拉尔·阿雷利亚诺、Víctor曼努埃尔·布拉沃·奎瓦斯和鲁巴姆·德拉罗莎(墨西哥);Ismar de Souza Carvalho、Paula Dentzien-Dias、Caio csamrangel和Heitor Francischini(巴西);特蕾莎·马内拉、贝尔纳多González里加、María贝尔梅扬·托马塞利、卡洛斯Cónsole-Gonella、西尔维娜·德瓦莱、伊格纳西奥Díaz-Martínez、保罗·西顿、豪尔赫·奥兰多·卡尔沃、María克里斯蒂娜·卡多纳托、Verónica克拉波维卡斯、纳韦尔·埃斯皮诺萨、曼努埃尔·罗哈斯·曼里克斯和阿图罗·埃雷迪亚(阿根廷)。涵盖的主题多种多样，包括恐龙足迹(可能是更常见的主题);保护技术遗产;影响足迹形成和保存的因素;ichnotaxonomy;脊椎动物技术记录的区域或盆地综合;脊椎动物痕迹化石的古环境、古生态和进化研究骨学研究对足迹解释的重要性现代和化石四足动物的洞穴;粪化石;以及考古环境中的人类足迹。演讲存储在CPA UNLPam YouTube频道中，以与每一天相关的单独链接分开(第一天:https://youtu.be/-pa8-pTynW4，第二天:https://youtu.be/ fXCkozfTjzc，第三天:https://youtu.be/CExQVQ78iBE，第四天:https://youtu.be/ZgcuEI0DG-I，第五天:https:// YouTube .be/orYEpDcPbtE)。会谈和热烈的讨论邀请了对该学科当前方面的一些反思，至少来自拉丁技术社区。众所周知，无脊椎动物和脊椎动物技术的方法是不同的(例如Bromley, 2004;Lockley, 2007)。这次网络研讨会还揭示了即使在脊椎动物技术学家之间，在研究痕迹化石的目的和他们采用的方法上也存在差异或阴影。这一事实的一个很好的例子是，一些脊椎动物技术学家不愿意使用甚至不“相信”技术分类学。除了研究的目的外，这一位置可能与脚印复杂的形成和地理过程以及由此产生的保存变异(Marchetti et al.， 2019)有关。另一个方面是，一个给定单位的足迹记录中只有一小部分可以自信地与确定的ichnotaxa进行比较，这可以说在岩石中留下了大量潜在的信息。一些谈话强调，化石足迹比骨骼遗骸普遍得多。越来越多的证据表明，从脚印中获得的信息可能比骨学记录更有代表性和相关性，可以用来重建过去的社区。然而，这两种记录是互补的，而且很重要。几次会谈强调，脊椎动物痕迹化石应该与沉积岩石的详细描述一起研究，以避免潜在的错误，并从痕迹化石中获得最大的信息。
{"title":"Webinar report: Seminario Virtual Internacional de Icnología de Vertebrados – SEVIIV2021","authors":"Ricardo Melchor","doi":"10.1080/10420940.2021.1998037","DOIUrl":"https://doi.org/10.1080/10420940.2021.1998037","url":null,"abstract":"SEVIIV2021 was a scientific webinar on vertebrate ichnology hosted by the Universidad Nacional de La Pampa and the Instituto de Ciencias de la Tierra y Ambientales de La Pampa, that was convened on five half-day sessions developed between June 14-18, 2021. This virtual activity was effective in facilitating discussions and interchange between experienced vertebrate ichnologists and graduate students. Spanish and Portuguese were the languages of this free seminar that included 33 talks and an average audience of 140 participants per day. Presentations were delivered by vertebrate ichnologists from nine countries, including Giuseppe Leonardi (Italy), Martin Lockley (USA), Silvério Figueiredo (Portugal); Félix Pérez Lorente, José Joaquín Moratalla García, Laura Piñuela, and Diego Castanera (Spain); Karen Moreno and Jorge Campos (Chile); Mariano Verde and Valeria Mesa (Uruguay); Eduardo Jiménez Hidalgo, Rosalía Guerrero, Felisa J. Aguilar Arellano, Víctor Manuel Bravo Cuevas, and Rubén Rodríguez de la Rosa (Mexico); Ismar de Souza Carvalho, Paula Dentzien-Dias, Caio César Rangel, and Heitor Francischini (Brazil); Teresa Manera, Bernardo González Riga, María Belén Tomaselli, Carlos Cónsole-Gonella, Silvina de Valais, Ignacio Díaz-Martínez, Paolo Citton, Jorge Orlando Calvo, María Cristina Cardonatto, Verónica Krapovickas, Nahuel Espinoza, Manuel Rojas Manriquez, and Arturo Heredia (Argentina). The topics covered were diverse including dinosaur tracks (perhaps the more common theme); protection of the ichnological heritage; factors affecting the formation and preservation of footprints; ichnotaxonomy; regional or basinal synthesis of the vertebrate ichnological record; paleoenvironmental, paleoecological and evolutionary aspects of vertebrate trace fossils; importance of osteological studies for the interpretation of tracks; modern and fossil tetrapod burrows; coprolites; and human footprints in archeological settings. The talks are stored in the CPA UNLPam YouTube channel, separated in individual links related to each day (day 1: https://youtu.be/-pa8-pTynW4, day 2: https://youtu.be/ fXCkozfTjzc, day 3: https://youtu.be/CExQVQ78iBE, day 4: https://youtu.be/ZgcuEI0DG-I, day 5: https:// youtu.be/orYEpDcPbtE). The talks and lively discussions invite some reflections on current aspects of the discipline, at least from the Latin ichnological community. It is well known that the approaches of invertebrate and vertebrate ichnology are different (e.g. Bromley, 2004; Lockley, 2007). This webinar also revealed that even between vertebrate ichnologists there are differences or shades in the purposes of the study of trace fossils and the methodology they employ. A good example of this fact is that several vertebrate ichnologists are reluctant to use or even do not “believe” in ichnotaxonomy. This position is probably linked with the complicated formative and taphonomical processes of footprints, and the resulting preservational variants (Marchetti et al., 2019), ","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"13 1","pages":"321 - 322"},"PeriodicalIF":0.8,"publicationDate":"2021-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81290093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-03DOI: 10.1080/10420940.2021.1992563
D. Keighley, M. Gingras, L. Buatois
In 2018, Ron Pickerill, a dear friend and mentor to many of us, passed away. He is well remembered by us and note that his obituary appeared earlier in this journal (Donovan et al. 2019). This volume is a small tribute to a man who was a fine taxonomist and paleontologist. His work and life were dedicated to ichnological learning and teaching, as well as tireless reviewing and editing. The papers dedicated herein reflect his career. The first paper in the volume is by Rob McNaughton, an early protégé of Ron’s and the trace fossil discussed therein, Psammichnites, was one of Ron’s favorites. Kaur’s paper is next and it presents Cambrian trace fossils from India. It is worth noting that this paper resonates with some of Ron’s most
2018年，我们许多人的挚友和导师罗恩·皮克里尔去世了。我们对他印象深刻，并注意到他的讣告出现在本杂志的早些时候(Donovan et al. 2019)。这本书是一个小小的敬意的人谁是一个优秀的分类学家和古生物学家。他的工作和生活致力于技术的学习和教学，以及不知疲倦的审查和编辑。在此奉献的论文反映了他的职业生涯。本卷的第一篇论文是由罗布·麦克诺顿(Rob McNaughton)撰写的，他是罗恩早期的一位前任，文中讨论的化石痕迹——Psammichnites——是罗恩最喜欢的化石之一。下一篇是考尔的论文，它展示了来自印度的寒武纪痕迹化石。值得注意的是，这篇文章与罗恩的一些最具共鸣
{"title":"Ron Pickerill Memorial Issue","authors":"D. Keighley, M. Gingras, L. Buatois","doi":"10.1080/10420940.2021.1992563","DOIUrl":"https://doi.org/10.1080/10420940.2021.1992563","url":null,"abstract":"In 2018, Ron Pickerill, a dear friend and mentor to many of us, passed away. He is well remembered by us and note that his obituary appeared earlier in this journal (Donovan et al. 2019). This volume is a small tribute to a man who was a fine taxonomist and paleontologist. His work and life were dedicated to ichnological learning and teaching, as well as tireless reviewing and editing. The papers dedicated herein reflect his career. The first paper in the volume is by Rob McNaughton, an early protégé of Ron’s and the trace fossil discussed therein, Psammichnites, was one of Ron’s favorites. Kaur’s paper is next and it presents Cambrian trace fossils from India. It is worth noting that this paper resonates with some of Ron’s most","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"1 1","pages":"163 - 163"},"PeriodicalIF":0.8,"publicationDate":"2021-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83030011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-03DOI: 10.1080/10420940.2021.1932493
S. Donovan
Abstract Limpets are a group of gastropods that generate distinctive traces – their homing scars – and whose shells are bored both by predators and invertebrates forming domiciles. A Recent shell of Patella vulgata Linnaeus shows a distinctive and unusual preservation. It was collected from the north (Solent) coast of the Isle of Wight, southern England, from Queen Victoria’s private bathing beach, Osborne House. The specimen preserves only the lower third of the shell, adjacent to the aperture. The surface of breakage is densely infested by the U-shaped boring Caulostrepsis taeniola Clarke, commonly the spoor of spionid polychaetes such as Polydora spp. The inferred taphonomic history is that the lower third of the dead shell was protected by burial in sediment while the apex was destroyed by a dense infestation of boring spionids. Such preservation is highly distinctive and might not be recognized in the fossil record when shells are only seen in two dimensions in a lithified rock surface.
{"title":"Taphonomy of a limpet","authors":"S. Donovan","doi":"10.1080/10420940.2021.1932493","DOIUrl":"https://doi.org/10.1080/10420940.2021.1932493","url":null,"abstract":"Abstract Limpets are a group of gastropods that generate distinctive traces – their homing scars – and whose shells are bored both by predators and invertebrates forming domiciles. A Recent shell of Patella vulgata Linnaeus shows a distinctive and unusual preservation. It was collected from the north (Solent) coast of the Isle of Wight, southern England, from Queen Victoria’s private bathing beach, Osborne House. The specimen preserves only the lower third of the shell, adjacent to the aperture. The surface of breakage is densely infested by the U-shaped boring Caulostrepsis taeniola Clarke, commonly the spoor of spionid polychaetes such as Polydora spp. The inferred taphonomic history is that the lower third of the dead shell was protected by burial in sediment while the apex was destroyed by a dense infestation of boring spionids. Such preservation is highly distinctive and might not be recognized in the fossil record when shells are only seen in two dimensions in a lithified rock surface.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"8 1","pages":"253 - 256"},"PeriodicalIF":0.8,"publicationDate":"2021-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84456445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-03DOI: 10.1080/10420940.2021.1932489
S. Donovan, R. Portell
Abstract The Upper Pliocene Hopegate Formation of north central Jamaica is a dolomitized raised reef. Hitherto, its palaeontology has been largely ignored because of the poor preservation; the Hopegate Formation is highly karstified, well indurated and fossils are commonly preserved as molds. However, moldic preservation has enhanced the common borings. Ichnotaxa identified from this formation include Entobia ovula? Bromley and d’Alessandro; Entobia ispp.; Gastrochaenolites isp. cf. G. torpedo Kelly and Bromley; Gastrochaenolites pickerilli Donovan; Gastrochaenolites ispp.; Oichnus simplex Bromley; Rogerella isp. cf. R. lecontrei Saint-Seine; Talpina isp. cf. T. hirsuta Voigt and Uniglobites flomerata (Morris). There are more specimens of Entobia than all other ichnotaxa combined. Comparison with other Neogene formations or members in the Antilles demonstrates that the association Entobia + Gastrochaenolites + Oichnus is near-ubiquitous. Caulostrepsis Clarke, which is common in modern shallow water environments in association with Entobia and Gastrochaenolites, is less common in the ancient associations of the Antilles.
{"title":"Ichnology of a dolomitized raised reef: Hopegate Formation, Jamaica (Upper Pliocene)","authors":"S. Donovan, R. Portell","doi":"10.1080/10420940.2021.1932489","DOIUrl":"https://doi.org/10.1080/10420940.2021.1932489","url":null,"abstract":"Abstract The Upper Pliocene Hopegate Formation of north central Jamaica is a dolomitized raised reef. Hitherto, its palaeontology has been largely ignored because of the poor preservation; the Hopegate Formation is highly karstified, well indurated and fossils are commonly preserved as molds. However, moldic preservation has enhanced the common borings. Ichnotaxa identified from this formation include Entobia ovula? Bromley and d’Alessandro; Entobia ispp.; Gastrochaenolites isp. cf. G. torpedo Kelly and Bromley; Gastrochaenolites pickerilli Donovan; Gastrochaenolites ispp.; Oichnus simplex Bromley; Rogerella isp. cf. R. lecontrei Saint-Seine; Talpina isp. cf. T. hirsuta Voigt and Uniglobites flomerata (Morris). There are more specimens of Entobia than all other ichnotaxa combined. Comparison with other Neogene formations or members in the Antilles demonstrates that the association Entobia + Gastrochaenolites + Oichnus is near-ubiquitous. Caulostrepsis Clarke, which is common in modern shallow water environments in association with Entobia and Gastrochaenolites, is less common in the ancient associations of the Antilles.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"88 1","pages":"231 - 242"},"PeriodicalIF":0.8,"publicationDate":"2021-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79062647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-01DOI: 10.1080/10420940.2021.1941001
Hayden A. Thacker, Daniel I. Hembree
ABSTRACT Beetles (Coleoptera) are a critical component of terrestrial ecosystems filling numerous ecological roles. Soil-dwelling beetles play an important role in pedogenesis through the production of biogenic structures throughout their life cycle. Given their life habits, beetle trace fossils should be abundant in the fossil record and a number of ichnotaxa have been attributed to beetles, yet there is still much to learn about their trace-making techniques and the variety of morphologies of traces they can produce throughout their life cycle. The Tenebrionidae (darkling beetles) is a common, globally distributed group that includes many soil-dwelling species from a variety of environments. The purpose of this project was to gain a better understanding of biogenic structures produced during each life stage of two species of burrowing darkling beetles, Zophobas morio F. and Tenebrio molitor L. Single to multiple specimens of each species were placed in variably sized enclosures filled with massive and layered sediment with and without layers of food. Biogenic structures produced by the two species were similar, but distinct between each life stage and associated with different behaviors. Observed biogenic structures are comparable to Palaeophycus, Planolites, Fictovichnus, Rebuffoichnus, Pallichnus, Taenidium, Skolithos, and Conichnus depending on the life stage. Neoichnological studies such as this can aid in the understanding of biogenic structures in the fossil record. Being able to effectively link continental traces to trace makers will ultimately improve our understanding of the composition of ancient terrestrial ecosystems.
{"title":"Neoichnological study of two species of burrowing darkling beetles (Coleoptera: Tenebrionidae) from larval to adult stages","authors":"Hayden A. Thacker, Daniel I. Hembree","doi":"10.1080/10420940.2021.1941001","DOIUrl":"https://doi.org/10.1080/10420940.2021.1941001","url":null,"abstract":"ABSTRACT Beetles (Coleoptera) are a critical component of terrestrial ecosystems filling numerous ecological roles. Soil-dwelling beetles play an important role in pedogenesis through the production of biogenic structures throughout their life cycle. Given their life habits, beetle trace fossils should be abundant in the fossil record and a number of ichnotaxa have been attributed to beetles, yet there is still much to learn about their trace-making techniques and the variety of morphologies of traces they can produce throughout their life cycle. The Tenebrionidae (darkling beetles) is a common, globally distributed group that includes many soil-dwelling species from a variety of environments. The purpose of this project was to gain a better understanding of biogenic structures produced during each life stage of two species of burrowing darkling beetles, Zophobas morio F. and Tenebrio molitor L. Single to multiple specimens of each species were placed in variably sized enclosures filled with massive and layered sediment with and without layers of food. Biogenic structures produced by the two species were similar, but distinct between each life stage and associated with different behaviors. Observed biogenic structures are comparable to Palaeophycus, Planolites, Fictovichnus, Rebuffoichnus, Pallichnus, Taenidium, Skolithos, and Conichnus depending on the life stage. Neoichnological studies such as this can aid in the understanding of biogenic structures in the fossil record. Being able to effectively link continental traces to trace makers will ultimately improve our understanding of the composition of ancient terrestrial ecosystems.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"61 1","pages":"290 - 308"},"PeriodicalIF":0.8,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79879951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-23DOI: 10.1080/10420940.2021.1932494
T. Mccann
Abstract The ichnofossil Oldhamia is considered to be characteristic of deep-marine, Cambrian-age successions. Recent work from an Oligocene/Miocene-age sedimentary succession in the southwest of Spain revealed the presence of well-preserved Oldhamia at the base of two beds (which occur close to one another). Oldhamia was associated with a range of other ichnofossils including Belorhaphe, Chondrites, Circulichnis, Cochlichnus, Cosmorhaphe, Desmograpton, Halopoa, Helminthopsis, Nereites, Palaeodictyon, Palaeophycus, Planolites, Protopalaeodictyon, Scolicia, Spirophycus, Teichichnus, Thalassinoides, and Zoophycos. Deposition occurred in a lobe or channel margin environment in a deep-marine setting. This record of Oldhamia extends the range into the Paleogene/Neogene, and as such is of great ichnological and ichnostratigraphic significance.
{"title":"Oldhamia from the Oligocene/Miocene-age deep-marine Algeciras Unit, Campo de Gibraltar Complex, southeast Spain: First record of this characteristic Lower Palaeozoic (mainly Cambrian) ichnofossil from younger strata","authors":"T. Mccann","doi":"10.1080/10420940.2021.1932494","DOIUrl":"https://doi.org/10.1080/10420940.2021.1932494","url":null,"abstract":"Abstract The ichnofossil Oldhamia is considered to be characteristic of deep-marine, Cambrian-age successions. Recent work from an Oligocene/Miocene-age sedimentary succession in the southwest of Spain revealed the presence of well-preserved Oldhamia at the base of two beds (which occur close to one another). Oldhamia was associated with a range of other ichnofossils including Belorhaphe, Chondrites, Circulichnis, Cochlichnus, Cosmorhaphe, Desmograpton, Halopoa, Helminthopsis, Nereites, Palaeodictyon, Palaeophycus, Planolites, Protopalaeodictyon, Scolicia, Spirophycus, Teichichnus, Thalassinoides, and Zoophycos. Deposition occurred in a lobe or channel margin environment in a deep-marine setting. This record of Oldhamia extends the range into the Paleogene/Neogene, and as such is of great ichnological and ichnostratigraphic significance.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"19 1","pages":"217 - 230"},"PeriodicalIF":0.8,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89754885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-18DOI: 10.1080/10420940.2021.1932490
R. Kaur, B. Singh, O. Bhargava, R. Mikuláš, Garry Singla, S. K. Prasad, Stanzin Stopden
Abstract Trace fossils are abundant in the Cambrian Kunzam La Formation in the Lahaul and Spiti regions of the Himalaya. All previously known records belong stratigraphically to the upper part of the Cambrian Series 2/Stage 4 to the Miaolingian Series. In the present work, 15 ichnogenera comprising 26 recorded ichnospecies come from the lower part of the Kunzam La Formation exposed in the Chandra Valley, eastern Lahaul and Spiti, Himachal Pradesh. Three trace fossils associations, based on their sequence of appearance, are: (i) the Treptichnus pedum association (trace fossil association–I)-, a low diversity association, containing Planolites beverleyensis, Palaeophycus isp., and Treptichnus pedum, (ii) the Monomorphichnus association (trace fossil association–II) characterized by a sudden increase in trace fossil diversity and traces of arthropod/trilobite origin comprising Cruziana problematica, Cruziana isp., Catenichnus contentus,? Diplocraterion isp., Dimorphichnus obliquus, Dactylophycus isp., Lockeia siliquaria, Monomorphichnus multilineatus, M. lineatus, Planolites annularis, P. montanus, P. beverleyensis, Palaeophycus imbricatus, P. tubularis, Rusophycus didymus, R. leifeirikssoni, R. dispar, Rusophycus isp., Saerichnites abruptus, and serially repeated Rusophycus and Cruziana, Treptichnus pollardi and arthropod resting traces, and (iii) the Psammichnites association (trace fossil association–III) characterized by a dominant presence of large burrowing systems of Psammichnites gigas and traces of Diplichnites isp. and Ctenopholeus kutcheri. Considering the same rate of sedimentation for these deposits determined in the >50 km distant Parahio Valley and the stratigraphic position of the Psammichnites gigas assemblage zone in the Himalaya, these trace fossil associations probably fall within Cambrian Series 2, Stage 4, though the sudden increase in diversity and complexities of traces suggest an older age. Stratigraphically, the trace fossils presently described are the oldest yet recorded from the Cambrian of the Lahaul and Spiti regions.
{"title":"Ichnology and biostratigraphic significance of Cambrian trace fossils from the lowest stratigraphic level of Kunzam La Formation, Chandra Valley, Lahaul and Spiti, India","authors":"R. Kaur, B. Singh, O. Bhargava, R. Mikuláš, Garry Singla, S. K. Prasad, Stanzin Stopden","doi":"10.1080/10420940.2021.1932490","DOIUrl":"https://doi.org/10.1080/10420940.2021.1932490","url":null,"abstract":"Abstract Trace fossils are abundant in the Cambrian Kunzam La Formation in the Lahaul and Spiti regions of the Himalaya. All previously known records belong stratigraphically to the upper part of the Cambrian Series 2/Stage 4 to the Miaolingian Series. In the present work, 15 ichnogenera comprising 26 recorded ichnospecies come from the lower part of the Kunzam La Formation exposed in the Chandra Valley, eastern Lahaul and Spiti, Himachal Pradesh. Three trace fossils associations, based on their sequence of appearance, are: (i) the Treptichnus pedum association (trace fossil association–I)-, a low diversity association, containing Planolites beverleyensis, Palaeophycus isp., and Treptichnus pedum, (ii) the Monomorphichnus association (trace fossil association–II) characterized by a sudden increase in trace fossil diversity and traces of arthropod/trilobite origin comprising Cruziana problematica, Cruziana isp., Catenichnus contentus,? Diplocraterion isp., Dimorphichnus obliquus, Dactylophycus isp., Lockeia siliquaria, Monomorphichnus multilineatus, M. lineatus, Planolites annularis, P. montanus, P. beverleyensis, Palaeophycus imbricatus, P. tubularis, Rusophycus didymus, R. leifeirikssoni, R. dispar, Rusophycus isp., Saerichnites abruptus, and serially repeated Rusophycus and Cruziana, Treptichnus pollardi and arthropod resting traces, and (iii) the Psammichnites association (trace fossil association–III) characterized by a dominant presence of large burrowing systems of Psammichnites gigas and traces of Diplichnites isp. and Ctenopholeus kutcheri. Considering the same rate of sedimentation for these deposits determined in the >50 km distant Parahio Valley and the stratigraphic position of the Psammichnites gigas assemblage zone in the Himalaya, these trace fossil associations probably fall within Cambrian Series 2, Stage 4, though the sudden increase in diversity and complexities of traces suggest an older age. Stratigraphically, the trace fossils presently described are the oldest yet recorded from the Cambrian of the Lahaul and Spiti regions.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"29 1","pages":"176 - 207"},"PeriodicalIF":0.8,"publicationDate":"2021-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79481772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-18DOI: 10.1080/10420940.2021.1932488
Eamon Doyle, P. Orr, John Murray
Abstract The ichnogenus Psilonichnus Fürsich, 1981 is recorded for the first time from the Mississippian (Brigantian regional substage) limestones of the Slievenaglasha Formation from the west coast of County Clare, Ireland. This record extends the known range of Psilonichnus which has previously been recorded from rocks of Jurassic or younger age. The trace maker of the burrows described herein has not been preserved and remains unknown; however, the ichnogenus Psilonichnus is generally ascribed to the burrowing activities of decapod crustaceans such as crabs or shrimp. Decapods from the Paleozoic are poorly known and assigning the traces to a maker must be treated with caution. However, this record indicates that burrowing organisms using a similar life strategy to modern decapods were established by Brigantian times. These examples are assigned to the Glossifungites ichnofacies, as they occur on an omission surface in a shallow marine carbonate firmground. The burrows were subsequently infilled with deposits of possible storm origin. Glacioeustatic sea-level fluctuation related to the onset of the Late Paleozoic Ice Age is a common feature of Carboniferous sedimentary successions at this level, and the Irish (Mississippian) Psilonichnus horizon occurs just below a significant regional sequence boundary at the top of the Slievenaglasha Formation.
{"title":"The earliest occurrence of the ichnogenus Psilonichnus: a new record from the Mississippian of the West of Ireland","authors":"Eamon Doyle, P. Orr, John Murray","doi":"10.1080/10420940.2021.1932488","DOIUrl":"https://doi.org/10.1080/10420940.2021.1932488","url":null,"abstract":"Abstract The ichnogenus Psilonichnus Fürsich, 1981 is recorded for the first time from the Mississippian (Brigantian regional substage) limestones of the Slievenaglasha Formation from the west coast of County Clare, Ireland. This record extends the known range of Psilonichnus which has previously been recorded from rocks of Jurassic or younger age. The trace maker of the burrows described herein has not been preserved and remains unknown; however, the ichnogenus Psilonichnus is generally ascribed to the burrowing activities of decapod crustaceans such as crabs or shrimp. Decapods from the Paleozoic are poorly known and assigning the traces to a maker must be treated with caution. However, this record indicates that burrowing organisms using a similar life strategy to modern decapods were established by Brigantian times. These examples are assigned to the Glossifungites ichnofacies, as they occur on an omission surface in a shallow marine carbonate firmground. The burrows were subsequently infilled with deposits of possible storm origin. Glacioeustatic sea-level fluctuation related to the onset of the Late Paleozoic Ice Age is a common feature of Carboniferous sedimentary successions at this level, and the Irish (Mississippian) Psilonichnus horizon occurs just below a significant regional sequence boundary at the top of the Slievenaglasha Formation.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"81 1","pages":"208 - 216"},"PeriodicalIF":0.8,"publicationDate":"2021-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89214832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-18DOI: 10.1080/10420940.2021.1915781
Jaroslav Šamánek, R. Mikuláš, L. Hájková
ABSTRACT A Miocene fossil rocky coastline is well preserved in Kalcit Quarry near Brno. It differs from the few preserved coeval coastlines of the Central Paratethys in the dominance of borings attributable to echinoids. These borings are represented by roughly smooth shallow circular pits interpreted as dwelling traces of echinoids. Ichnotaxonomically, they can be placed in the ichnospecies Circolites kotoucensis Mikuláš, 1992. Besides usual individual pits, two discernible varieties of composite Circolites were found: (1) linear chains of pits interconnected by a smoothed joint bottom; and (2) spirally folded pits resembling a rosacean flower. The linear chains are morphologically very similar to narrow forms of Planavolites homolensis Mikuláš, 1992 and to Ericichnus bromleyi Santos and Mayoral, 2015. This similarity demonstrates the necessity of a review of the diagnoses of all the hitherto described ichnogenera attributed to boring echinoids, i.e., Circolites, Ericichnus, and Planavolites. We suggest that linear or planar traces with smoothed bottoms should be considered a composite of neighbouring Circolites, provided that the remains of individual pits are still discernible in the ground plan. Ericichnus is now considered as junior synonym of Planavolites Mikuláš, 1992.
{"title":"A fossil carbonate rocky shore in the Kalcit Quarry: a new insight into echinoid shallow marine bioerosion (Miocene; Czech Republic)","authors":"Jaroslav Šamánek, R. Mikuláš, L. Hájková","doi":"10.1080/10420940.2021.1915781","DOIUrl":"https://doi.org/10.1080/10420940.2021.1915781","url":null,"abstract":"ABSTRACT A Miocene fossil rocky coastline is well preserved in Kalcit Quarry near Brno. It differs from the few preserved coeval coastlines of the Central Paratethys in the dominance of borings attributable to echinoids. These borings are represented by roughly smooth shallow circular pits interpreted as dwelling traces of echinoids. Ichnotaxonomically, they can be placed in the ichnospecies Circolites kotoucensis Mikuláš, 1992. Besides usual individual pits, two discernible varieties of composite Circolites were found: (1) linear chains of pits interconnected by a smoothed joint bottom; and (2) spirally folded pits resembling a rosacean flower. The linear chains are morphologically very similar to narrow forms of Planavolites homolensis Mikuláš, 1992 and to Ericichnus bromleyi Santos and Mayoral, 2015. This similarity demonstrates the necessity of a review of the diagnoses of all the hitherto described ichnogenera attributed to boring echinoids, i.e., Circolites, Ericichnus, and Planavolites. We suggest that linear or planar traces with smoothed bottoms should be considered a composite of neighbouring Circolites, provided that the remains of individual pits are still discernible in the ground plan. Ericichnus is now considered as junior synonym of Planavolites Mikuláš, 1992.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"8 1","pages":"271 - 289"},"PeriodicalIF":0.8,"publicationDate":"2021-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84531502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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