Pub Date : 2020-02-25DOI: 10.1080/10420940.2020.1730360
Fehmy Belghouthi, A. Wetzel, H. Zouari, R. Jeddi
Abstract The lower Maastrichtian deposits of the Mateur-Beja area in northern Tunisia are mainly composed of fine-grained marl and limestone alternations occasionally interbedded by coarse-grained calcarenites and gravel deposits. In the coarse-grained intervals sedimentary structures are indicative of storm-induced high-energy currents in an outer ramp to slope setting and of local reworking by bottom currents in the basin. In deeper environments, fine-grained sediments accumulated mainly while settling from storm-induced suspensions. The lower Maastrichtian deposits contain abundant Zoophycos exhibiting two main morphotypes, skirt-shaped Zoophycos in deposits around storm-wave base and tongue-shaped Zoophycos in somewhat deeper sediments. The types differ in burrow architecture, morphology of lobes, and size of structural elements. These differences are attributed to different behavioral programs modulated by the availability of benthic food that decreased seaward. Storm-affected environments seem to be a prerequisite for these Zoophycos-producers to choose their habitat.
{"title":"Zoophycos in storm-affected environments: a case study from lower Maastrichtian deposits of the Mateur-Beja area (Northern Tunisia)","authors":"Fehmy Belghouthi, A. Wetzel, H. Zouari, R. Jeddi","doi":"10.1080/10420940.2020.1730360","DOIUrl":"https://doi.org/10.1080/10420940.2020.1730360","url":null,"abstract":"Abstract The lower Maastrichtian deposits of the Mateur-Beja area in northern Tunisia are mainly composed of fine-grained marl and limestone alternations occasionally interbedded by coarse-grained calcarenites and gravel deposits. In the coarse-grained intervals sedimentary structures are indicative of storm-induced high-energy currents in an outer ramp to slope setting and of local reworking by bottom currents in the basin. In deeper environments, fine-grained sediments accumulated mainly while settling from storm-induced suspensions. The lower Maastrichtian deposits contain abundant Zoophycos exhibiting two main morphotypes, skirt-shaped Zoophycos in deposits around storm-wave base and tongue-shaped Zoophycos in somewhat deeper sediments. The types differ in burrow architecture, morphology of lobes, and size of structural elements. These differences are attributed to different behavioral programs modulated by the availability of benthic food that decreased seaward. Storm-affected environments seem to be a prerequisite for these Zoophycos-producers to choose their habitat.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"16 1","pages":"200 - 220"},"PeriodicalIF":0.8,"publicationDate":"2020-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82637143","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 : 2020-01-17DOI: 10.1080/10420940.2019.1697259
R. Metz
Abstract Fluvial deposits of the uppermost Stockton Formation (Late Triassic), Newark Basin, west-central New Jersey have yielded an assemblage of trace fossils. Dominated by burrows, specimens include Cochlichnus anguineus, Helminthoidichnites tenuis, Planolites beverleyensis, Scoyenia gracilis, Spongeliomorpha carlsbergi, Treptichnus bifurcus, Treptichnus pollardi, plant remains, and an undetermined vertebrate trace fossil. The assemblage belongs to the Scoyenia ichnofacies. On the basis of stratification and primary sedimentary structures, the beds are interpreted as deposits in a meandering stream environment. Larval insects, wormlike forms, and arthropods are probably responsible for most of the animal traces in wet or moist channel, floodplain, and point bar sediments subject to subaerial exposure.
{"title":"Trace fossils in fluvial deposits of the uppermost Stockton Formation (Late Triassic), Newark Basin, New Jersey","authors":"R. Metz","doi":"10.1080/10420940.2019.1697259","DOIUrl":"https://doi.org/10.1080/10420940.2019.1697259","url":null,"abstract":"Abstract Fluvial deposits of the uppermost Stockton Formation (Late Triassic), Newark Basin, west-central New Jersey have yielded an assemblage of trace fossils. Dominated by burrows, specimens include Cochlichnus anguineus, Helminthoidichnites tenuis, Planolites beverleyensis, Scoyenia gracilis, Spongeliomorpha carlsbergi, Treptichnus bifurcus, Treptichnus pollardi, plant remains, and an undetermined vertebrate trace fossil. The assemblage belongs to the Scoyenia ichnofacies. On the basis of stratification and primary sedimentary structures, the beds are interpreted as deposits in a meandering stream environment. Larval insects, wormlike forms, and arthropods are probably responsible for most of the animal traces in wet or moist channel, floodplain, and point bar sediments subject to subaerial exposure.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"8 1","pages":"142 - 151"},"PeriodicalIF":0.8,"publicationDate":"2020-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84060635","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 : 2020-01-02DOI: 10.1080/10420940.2019.1584561
S. Donovan, J. Jagt
Abstract The large holasteroid echinoid Hemipneustes striatoradiatus (Leske) was exploited by diverse invertebrate encrusters and borers during the Maastrichtian, both pre- and post-mortem. In life, the specimen described herein was perforated by multiple Oichnus simplex Bromley borings close to the apical system. Each engendered a growth reaction from the echinoid, a mound-like swelling on the external surface of the test with the boring at the centre. These would have been moved away from the apical system as the echinoid grew and inserted new plates apically. Whether this infestation was the product of numerous individual organisms or, less likely, just one organism (gastropod?) that relocated when discouraged by each mound-like swelling is uncertain. Similar growth reactions are known from other echinoderms, but associated with non-penetrative Oichnus paraboloides Bromley.
{"title":"Oichnus simplex Bromley infesting Hemipneustes striatoradiatus (Leske) (Echinoidea) from the Maastrichtian type area (Upper Cretaceous, The Netherlands)","authors":"S. Donovan, J. Jagt","doi":"10.1080/10420940.2019.1584561","DOIUrl":"https://doi.org/10.1080/10420940.2019.1584561","url":null,"abstract":"Abstract The large holasteroid echinoid Hemipneustes striatoradiatus (Leske) was exploited by diverse invertebrate encrusters and borers during the Maastrichtian, both pre- and post-mortem. In life, the specimen described herein was perforated by multiple Oichnus simplex Bromley borings close to the apical system. Each engendered a growth reaction from the echinoid, a mound-like swelling on the external surface of the test with the boring at the centre. These would have been moved away from the apical system as the echinoid grew and inserted new plates apically. Whether this infestation was the product of numerous individual organisms or, less likely, just one organism (gastropod?) that relocated when discouraged by each mound-like swelling is uncertain. Similar growth reactions are known from other echinoderms, but associated with non-penetrative Oichnus paraboloides Bromley.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"16 1","pages":"64 - 69"},"PeriodicalIF":0.8,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72990278","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 : 2020-01-02DOI: 10.1080/10420940.2019.1612390
Jaquilin K. Joseph, S. Patel, Jehova L. Darngawn, Apurva D. Shitole
Abstract Jurassic deposits of shallow to marginal marine (delta) environments are widely reported from different continents of the world. This study shows inter-relationship of the animal-sediment behaviours in shallow and marginal marine conditions, suggesting an interpretation of the possible ichnodisparity. The Jurassic succession exposed at Washtawa Dome and Adhoi Anticline of Wagad highland, Kachchh comprises an approximately 341 m thick succession, divided into two formations – Lower Washtawa and Upper Wagad Sandstone. Eight sparsely to highly bioturbated sedimentary units show twenty-three identifiable ichnospecies from fifteen ichnogenera representing five ichnoassemblages broadly attributable to the Skolithos and the Cruziana ichnofacies, and developed in shallow-marine strandplain shoreface and delta depositional facies. The relative frequency statistical data reveals the dominant occurrence of feeding structures generated by polychaetes preferentially in quartz arenites. These structures represent sub-horizontal, sub-vertical and complex burrows, and show twelve and six categories of architectural designing Callovian-Oxfordian of shallow-marine shoreface and Oxfordian-Kimmeridgian shallow-water delta successions, respectively. The lower ichnodiversity and ichnodisparity associated with the Oxfordian-Kimmeridgian deltaic intervals represents a decrease in the exploitation of under-used ecospace, due to unfavourable environmental conditions rather than an expression of evolutionary radiation.
{"title":"Ichnological analysis of Jurassic shallow to marginal marine deposits: example from Wagad Highland, Western India","authors":"Jaquilin K. Joseph, S. Patel, Jehova L. Darngawn, Apurva D. Shitole","doi":"10.1080/10420940.2019.1612390","DOIUrl":"https://doi.org/10.1080/10420940.2019.1612390","url":null,"abstract":"Abstract Jurassic deposits of shallow to marginal marine (delta) environments are widely reported from different continents of the world. This study shows inter-relationship of the animal-sediment behaviours in shallow and marginal marine conditions, suggesting an interpretation of the possible ichnodisparity. The Jurassic succession exposed at Washtawa Dome and Adhoi Anticline of Wagad highland, Kachchh comprises an approximately 341 m thick succession, divided into two formations – Lower Washtawa and Upper Wagad Sandstone. Eight sparsely to highly bioturbated sedimentary units show twenty-three identifiable ichnospecies from fifteen ichnogenera representing five ichnoassemblages broadly attributable to the Skolithos and the Cruziana ichnofacies, and developed in shallow-marine strandplain shoreface and delta depositional facies. The relative frequency statistical data reveals the dominant occurrence of feeding structures generated by polychaetes preferentially in quartz arenites. These structures represent sub-horizontal, sub-vertical and complex burrows, and show twelve and six categories of architectural designing Callovian-Oxfordian of shallow-marine shoreface and Oxfordian-Kimmeridgian shallow-water delta successions, respectively. The lower ichnodiversity and ichnodisparity associated with the Oxfordian-Kimmeridgian deltaic intervals represents a decrease in the exploitation of under-used ecospace, due to unfavourable environmental conditions rather than an expression of evolutionary radiation.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"39 1","pages":"35 - 63"},"PeriodicalIF":0.8,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86975886","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 : 2020-01-02DOI: 10.1080/10420940.2019.1584562
D. Perea, M. Verde, Felipe Montenegro, P. Toriño, Aldo Manzuetti, Guillermo Roland
Abstract The association of vertebrate remains and invertebrate traces, although less studied than other bioerosion traces, provides important paleoecological information. This report describes Cubiculum ornatum Roberts, Rogers, and Foreman 2007, Osteocallis Roberts, Rogers, and Foreman 2007 and other unidentified insect traces from the dermal skeletal remains of glyptodonts found in Uruguay. They come from the Fray Bentos Formation (Late Oligocene), the Camacho Formation (Late Miocene) and the Dolores Formation (Late Pleistocene-Early Holocene). The reported traces were likely made by sarcosaprophagous beetles, which indicate depositional conditions with dry episodes in a warm climate for the referred stratigraphical units.
与其他生物侵蚀痕迹相比，脊椎动物遗骸和无脊椎动物痕迹的关联虽然研究较少，但却提供了重要的古生态学信息。本报告描述了在乌拉圭发现的雕齿兽真皮骨骼遗骸中发现的Cubiculum ornatum Roberts, Rogers, and Foreman 2007, Osteocallis Roberts, Rogers, and Foreman 2007和其他未识别的昆虫痕迹。它们分别来自晚渐新世的弗赖本托斯组、晚中新世的卡马乔组和晚更新世-全新世早期的多洛雷斯组。报告的痕迹可能是由食肉甲虫留下的，这表明参考地层单元的沉积条件是温暖气候下的干燥期。
{"title":"Insect trace fossils in glyptodonts from Uruguay","authors":"D. Perea, M. Verde, Felipe Montenegro, P. Toriño, Aldo Manzuetti, Guillermo Roland","doi":"10.1080/10420940.2019.1584562","DOIUrl":"https://doi.org/10.1080/10420940.2019.1584562","url":null,"abstract":"Abstract The association of vertebrate remains and invertebrate traces, although less studied than other bioerosion traces, provides important paleoecological information. This report describes Cubiculum ornatum Roberts, Rogers, and Foreman 2007, Osteocallis Roberts, Rogers, and Foreman 2007 and other unidentified insect traces from the dermal skeletal remains of glyptodonts found in Uruguay. They come from the Fray Bentos Formation (Late Oligocene), the Camacho Formation (Late Miocene) and the Dolores Formation (Late Pleistocene-Early Holocene). The reported traces were likely made by sarcosaprophagous beetles, which indicate depositional conditions with dry episodes in a warm climate for the referred stratigraphical units.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"55 1","pages":"70 - 79"},"PeriodicalIF":0.8,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86195213","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 : 2020-01-02DOI: 10.1080/10420940.2019.1584560
B. Singh, O. Bhargava, R. Mikuláš, Scott Morrision, R. Kaur, Garry Singla, N. Kishore, N. Kumar, Rohit Kumar, Sakshi Moudgil
Abstract Integrated ichnology, sedimentology and sequence stratigraphy of the Lower Quartzite Member to the Arkosic Sandstone Member of the Koti Dhaman Formation (Cambrian Series 2, Stage 4), Tal Group, Nigali Dhar Syncline, Lesser Himalayan lithotectonic zone are presented. Trilobite traces of Gondwanan affinity i.e., Cruziana salomonis, Cruziana fasciculata, Rusophycus dispar and Rusophycus burjensis are recorded along with Arenicolites isp. and Skolithos isp. from the Lower Quartzite Member. A rich and diverse ichnoassemblage attributed to the Cruziana ichnofacies is described for the first time from the Arkosic Sandstone Member of the same formation. Seven ichnofossil assemblages, i.e., Cruziana-Rusophycus, Planolites-Palaeophycus, Cruziana problematica, Diplichnites, Cochlichnus anguineus, Bergaueria perata and Psammichnites gigas have been recognized in the Lower Quartzite to Arkosic Sandstone members of the Koti Dhaman Formation. Seven sedimentary facies i.e., sandstone–shale facies (FT1), cross-bedded (trough and planar) sandstone (FT2), bedded sandstone facies (FT3), shale facies (FT4), shale–sandstone facies (FT5), shale-rippled sandstone facies (FT6) and planar and trough cross-laminated sandstone (FT7) and four facies associations FA1-FA4 are identified in the Koti Dhaman Formation. The formation contains shallowing upward parasequences of a tidal flat complex. Overall, two major events are recognized: i) the break in sedimentation between the Lower Quartzite Member and the overlying Shale Member probably related to forced-regressive event and ii) the facies shift from FT6 to FT7 of the Arkosic Sandstone Member represents an erosive transgressive event; the surface is interpreted as wave ravinement surface, which also serves as a sequence boundary. Integrated ichnology, sedimentology and sequence stratigraphic studies indicate that the Lower Quartzite Member was deposited in a shallow subtidal sand sheet complex and tidal flat complex; the Shale Member was deposited in a mud flat setting of a tidal flat complex, and the Arkosic Sandstone Member in a mixed-flat (tidal flat complex) to sand sheet complex front and margin (subtidal sand sheet complex). Overall, the lower to middle part of the Koti Dhaman Formation represents a tide-dominated shallow subtidal–intertidal to mud-flat subenvironments of the tidal flat complex. A palaeogeographic reconstruction of lower Cambrian (516–514 Ma) is presented based on the distribution of trilobite traces from the Lesser Himalaya and the Bikaner–Nagaur area of Peninsular India (eastern Gondwana), Egypt, Jordan, Turkey (western Gondwana) and Canada (Avalonia).
{"title":"Integrated sedimentological, ichnological and sequence stratigraphical studies of the Koti Dhaman Formation (Tal Group), Nigali Dhar Syncline, Lesser Himalaya, India: paleoenvironmental, paleoecological, paleogeographic significance","authors":"B. Singh, O. Bhargava, R. Mikuláš, Scott Morrision, R. Kaur, Garry Singla, N. Kishore, N. Kumar, Rohit Kumar, Sakshi Moudgil","doi":"10.1080/10420940.2019.1584560","DOIUrl":"https://doi.org/10.1080/10420940.2019.1584560","url":null,"abstract":"Abstract Integrated ichnology, sedimentology and sequence stratigraphy of the Lower Quartzite Member to the Arkosic Sandstone Member of the Koti Dhaman Formation (Cambrian Series 2, Stage 4), Tal Group, Nigali Dhar Syncline, Lesser Himalayan lithotectonic zone are presented. Trilobite traces of Gondwanan affinity i.e., Cruziana salomonis, Cruziana fasciculata, Rusophycus dispar and Rusophycus burjensis are recorded along with Arenicolites isp. and Skolithos isp. from the Lower Quartzite Member. A rich and diverse ichnoassemblage attributed to the Cruziana ichnofacies is described for the first time from the Arkosic Sandstone Member of the same formation. Seven ichnofossil assemblages, i.e., Cruziana-Rusophycus, Planolites-Palaeophycus, Cruziana problematica, Diplichnites, Cochlichnus anguineus, Bergaueria perata and Psammichnites gigas have been recognized in the Lower Quartzite to Arkosic Sandstone members of the Koti Dhaman Formation. Seven sedimentary facies i.e., sandstone–shale facies (FT1), cross-bedded (trough and planar) sandstone (FT2), bedded sandstone facies (FT3), shale facies (FT4), shale–sandstone facies (FT5), shale-rippled sandstone facies (FT6) and planar and trough cross-laminated sandstone (FT7) and four facies associations FA1-FA4 are identified in the Koti Dhaman Formation. The formation contains shallowing upward parasequences of a tidal flat complex. Overall, two major events are recognized: i) the break in sedimentation between the Lower Quartzite Member and the overlying Shale Member probably related to forced-regressive event and ii) the facies shift from FT6 to FT7 of the Arkosic Sandstone Member represents an erosive transgressive event; the surface is interpreted as wave ravinement surface, which also serves as a sequence boundary. Integrated ichnology, sedimentology and sequence stratigraphic studies indicate that the Lower Quartzite Member was deposited in a shallow subtidal sand sheet complex and tidal flat complex; the Shale Member was deposited in a mud flat setting of a tidal flat complex, and the Arkosic Sandstone Member in a mixed-flat (tidal flat complex) to sand sheet complex front and margin (subtidal sand sheet complex). Overall, the lower to middle part of the Koti Dhaman Formation represents a tide-dominated shallow subtidal–intertidal to mud-flat subenvironments of the tidal flat complex. A palaeogeographic reconstruction of lower Cambrian (516–514 Ma) is presented based on the distribution of trilobite traces from the Lesser Himalaya and the Bikaner–Nagaur area of Peninsular India (eastern Gondwana), Egypt, Jordan, Turkey (western Gondwana) and Canada (Avalonia).","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"58 1","pages":"1 - 34"},"PeriodicalIF":0.8,"publicationDate":"2020-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84892389","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 : 2019-07-03DOI: 10.1080/10420940.2018.1538981
Chad A. Morgan, C. Henderson, B. Pratt
Abstract A new ichnospecies of Protopaleodictyon Książkiewicz, 1958, Pr. aitkeni isp. n., is named from material recovered from the mid–Cambrian Stephen–Eldon formation transition in Banff National Park, Alberta, Canada. Specimens occur in convex hyporelief on the sole of a dolomitic lime mudstone bed, and exhibit straight to gently curving strands with a 'zigzag' shape up to 45 cm in length. Strands are fairly regular, with branching angles ranging from 110° to 120°. Branch segments forming the strand are approximately the same length and produce strands with open and occasionally closed hexagonal polygons arranged alternatively along the specimen's axis. Hexagons are 25–40 mm wide and string widths are 5–10 mm. The dimensions of Pr. aitkeni are large compared to other ichnospecies of the ichnogenus and graphoglyptids in general. The host interval is interpreted to have been deposited in a relatively shallow-water environment in the interior of a carbonate platform, contrasting with the deeper siliciclastic settings in which younger examples of the ichnogenus typically occur. This occurrence further supports the hypothesis that graphoglyptid ethology initially developed in shallow shelf environments before shifting into deeper facies over geologic time.
{"title":"A Giant Protopaleodictyon from the Middle Cambrian of Western Canada","authors":"Chad A. Morgan, C. Henderson, B. Pratt","doi":"10.1080/10420940.2018.1538981","DOIUrl":"https://doi.org/10.1080/10420940.2018.1538981","url":null,"abstract":"Abstract A new ichnospecies of Protopaleodictyon Książkiewicz, 1958, Pr. aitkeni isp. n., is named from material recovered from the mid–Cambrian Stephen–Eldon formation transition in Banff National Park, Alberta, Canada. Specimens occur in convex hyporelief on the sole of a dolomitic lime mudstone bed, and exhibit straight to gently curving strands with a 'zigzag' shape up to 45 cm in length. Strands are fairly regular, with branching angles ranging from 110° to 120°. Branch segments forming the strand are approximately the same length and produce strands with open and occasionally closed hexagonal polygons arranged alternatively along the specimen's axis. Hexagons are 25–40 mm wide and string widths are 5–10 mm. The dimensions of Pr. aitkeni are large compared to other ichnospecies of the ichnogenus and graphoglyptids in general. The host interval is interpreted to have been deposited in a relatively shallow-water environment in the interior of a carbonate platform, contrasting with the deeper siliciclastic settings in which younger examples of the ichnogenus typically occur. This occurrence further supports the hypothesis that graphoglyptid ethology initially developed in shallow shelf environments before shifting into deeper facies over geologic time.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"63 1","pages":"216 - 223"},"PeriodicalIF":0.8,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87424445","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 : 2019-07-03DOI: 10.1080/10420940.2018.1532900
S. Pemberton, Erin A. L. Pemberton
Abstract Marie Rouault was a French-born self-made paleontologist who left school at the age of 10. He then worked as a shepherd and spent a considerable portion of his life as a barber. During this period, he developed a keen interest in the rocks surrounding the city of Rennes in Brittany, northwestern France. All his free time was spent collecting the prolific fossils that he encountered. His collection grew to such an extent that he opened a private museum and he attracted the attention of notable geologists in Paris. Finally, in 1853, the municipality decided to create, a “Geological Museum” of which he became, Director-Curator. On his appointment, he donated his samples to the city, part of which were placed at the Town Hall, the rest remained at his residence. On 28 July 1875 Rouault was informed that the Rennes City Council demanded the creation of a commission of inquiry. The results of this survey were catastrophic for Rouault and he was ultimately dismissed. Despite his early scientific success, Rouault did not publish anything for a period of 20 years (1858 to 1878). This sad end to Rouault’s career terminated with his death on December 16, 1881. From an ichnological point of view his most significant publications were done in 1850 and in a book following his death entitled Oeuvres Posthumes de Marie Rouault edited and augmented by Paul Lebesconte a pharmacist and amateur geologist from Rennes.
{"title":"From Shepard to Barber to Ichnologist: The Marie Rouault Story","authors":"S. Pemberton, Erin A. L. Pemberton","doi":"10.1080/10420940.2018.1532900","DOIUrl":"https://doi.org/10.1080/10420940.2018.1532900","url":null,"abstract":"Abstract Marie Rouault was a French-born self-made paleontologist who left school at the age of 10. He then worked as a shepherd and spent a considerable portion of his life as a barber. During this period, he developed a keen interest in the rocks surrounding the city of Rennes in Brittany, northwestern France. All his free time was spent collecting the prolific fossils that he encountered. His collection grew to such an extent that he opened a private museum and he attracted the attention of notable geologists in Paris. Finally, in 1853, the municipality decided to create, a “Geological Museum” of which he became, Director-Curator. On his appointment, he donated his samples to the city, part of which were placed at the Town Hall, the rest remained at his residence. On 28 July 1875 Rouault was informed that the Rennes City Council demanded the creation of a commission of inquiry. The results of this survey were catastrophic for Rouault and he was ultimately dismissed. Despite his early scientific success, Rouault did not publish anything for a period of 20 years (1858 to 1878). This sad end to Rouault’s career terminated with his death on December 16, 1881. From an ichnological point of view his most significant publications were done in 1850 and in a book following his death entitled Oeuvres Posthumes de Marie Rouault edited and augmented by Paul Lebesconte a pharmacist and amateur geologist from Rennes.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"29 1","pages":"165 - 177"},"PeriodicalIF":0.8,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78992956","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 : 2019-04-03DOI: 10.1080/10420940.2018.1532897
S. S. Gurav, K. Kulkarni
Abstract Bioclast lined tubes of Schaubcylindrichnus coronus are not much reported around the world. As of now only two reports are available. Interestingly in both these reports and in the current find, tests of foraminifers are used as tube building material. Current report of Schaubcylindrichnus is from the subtidal deposits of the Naredi Formation (Ypresian) of Kachchh Basin, Western India. As the host rock here abounds in the tests of larger benthic foraminifera, concentration of same is noticed within the tubes. The natural selection of lighter and larger calcitic grains of tests over the heavier mineral grains is the main reason for presence of the tests in tube building; moreover, presence of inner smooth wall of tube also indicates organisms’ preference for comfort within their burrow.
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Pub Date : 2019-04-03DOI: 10.1080/10420940.2018.1447466
Ricardo N. Melchor, S. Feola, Teresa Manera de Bianco
ABSTRACT This contribution reviews the worldwide record of canid and canid-like (creodont and hyaenid) fossil footprints, the taxonomy of this type of footprints, and reports a new record of canid footprints from the late Pleistocene Pehuen Co site of southern Buenos Aires province, Argentina. On the basis of the comparison of proposed ichnogenera and features of modern canid and felid footprints, a set of ichnogeneric and ichnospecific taxobases are proposed. The ichnotaxonomic review includes Bestiopeda Vialov, 1965; Canipeda Panin and Avram, 1962; Felipeda Panin and Avram, 1962; Pehuencoichnum Aramayo and Manera de Bianco, 1987b; Creodontipus Santamaría et al. 1989–1990; Tetrastoibopus Sarjeant and Langston, 1994; and Quiritipes Sarjeant et al. 2002. A key to discriminate these ichnotaxa is also proposed and the diagnosis of Canipeda emended. The new findings of canid footprints from Pehuen Co are indistinguishable from Pehuencoichnum gracilis Aramayo and Manera de Bianco, 1987b, and this ichnospecies is synonymized under Canipeda gracilis (Vialov, 1965). An emended diagnosis for C. gracilis is proposed. The most likely producer of C. gracilis from Pehuen Co is a medium-sized fox similar to the extant representatives of Lycalopex.
本文回顾了世界范围内犬科动物和类犬科动物(creodon和hyaenid)化石足迹的记录，并对这类足迹的分类进行了评述，并报道了阿根廷布宜诺斯艾利斯省南部晚更新世Pehuen Co遗址的犬科动物足迹新记录。在比较已提出的鱼属和现代犬科动物与野外足迹特征的基础上，提出了一套鱼属和鱼种分类数据库。技术分类综述:beestiopeda Vialov, 1965;Canipeda Panin and Avram, 1962;Felipeda Panin and Avram, 1962;Pehuencoichnum Aramayo and Manera de Bianco, 1987b;Creodontipus Santamaría et al. 1989-1990;Sarjeant和Langston, 1994;和Quiritipes Sarjeant等人，2002。提出了鉴别这些鱼类群的关键，并对犬足目的诊断进行了修正。Pehuen Co新发现的犬科动物足迹与Pehuencoichnum gracilis Aramayo和Manera de Bianco, 1987b难以区分，该鱼种同属Canipeda gracilis (Vialov, 1965)。提出了一种修正的诊断。Pehuen公司最有可能的C. gracilis生产者是一种中型狐狸，类似于Lycalopex的现存代表。
{"title":"Canid Paleoichnology: Taxonomic Review and Producers of Canipeda from the Late Pleistocene of Argentina","authors":"Ricardo N. Melchor, S. Feola, Teresa Manera de Bianco","doi":"10.1080/10420940.2018.1447466","DOIUrl":"https://doi.org/10.1080/10420940.2018.1447466","url":null,"abstract":"ABSTRACT This contribution reviews the worldwide record of canid and canid-like (creodont and hyaenid) fossil footprints, the taxonomy of this type of footprints, and reports a new record of canid footprints from the late Pleistocene Pehuen Co site of southern Buenos Aires province, Argentina. On the basis of the comparison of proposed ichnogenera and features of modern canid and felid footprints, a set of ichnogeneric and ichnospecific taxobases are proposed. The ichnotaxonomic review includes Bestiopeda Vialov, 1965; Canipeda Panin and Avram, 1962; Felipeda Panin and Avram, 1962; Pehuencoichnum Aramayo and Manera de Bianco, 1987b; Creodontipus Santamaría et al. 1989–1990; Tetrastoibopus Sarjeant and Langston, 1994; and Quiritipes Sarjeant et al. 2002. A key to discriminate these ichnotaxa is also proposed and the diagnosis of Canipeda emended. The new findings of canid footprints from Pehuen Co are indistinguishable from Pehuencoichnum gracilis Aramayo and Manera de Bianco, 1987b, and this ichnospecies is synonymized under Canipeda gracilis (Vialov, 1965). An emended diagnosis for C. gracilis is proposed. The most likely producer of C. gracilis from Pehuen Co is a medium-sized fox similar to the extant representatives of Lycalopex.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"21 1","pages":"107 - 85"},"PeriodicalIF":0.8,"publicationDate":"2019-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74170379","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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