{"title":"Micropalaeontological investigations of the Quilon Formation at the Channa Kodi section of Padappakkara, Kerala, India","authors":"A. Briguglio, S. Ćorić, F. Rögl","doi":"10.1127/PALA/2018/0080","DOIUrl":"https://doi.org/10.1127/PALA/2018/0080","url":null,"abstract":"","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"78 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79482704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The foraminiferal fauna of the Channa Kodi section at Padappakkara, Kerala, India","authors":"Fred Rögl, A. Briguglio","doi":"10.1127/pala/2018/0082","DOIUrl":"https://doi.org/10.1127/pala/2018/0082","url":null,"abstract":"","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"26 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81076095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Boivin, Laurent Marivaux, F. Pujos, R. Salas-Gismondi, Julia V. Tejada-Lara, R. Varas-Malca, P. Antoine
The rodent record during the late Eocene-early Oligocene interval is poorly known in South America. Our team's recent fieldwork in Peruvian Amazonia allowed for the discovery of five new fossil-bearing localities in a single stratigraphic section at Shapaja (Tarapoto area, San Martin Department), considered as early Oligocene by mammalian biostratigraphy. Here, we describe the caviomorph material from Shapaja, which documents 17 distinct taxa (with the co-occurrence of four to seven caviomorph taxa in a single level) representing at least three of the four extant superfamilies. Eight taxa are new to science: Kichkasteiromys raimondii nov. gen. et sp. and Shapajamys labocensis nov. gen. et sp. (Erethizontoidea), Selvamys paulus nov. gen. et sp. and Mayomys confluens nov. gen. et sp. (Octodontoidea), Eoincamys valverdei nov. sp. and E. parvus nov. sp. (?Chin-chilloidea), and Tarapotomys subandinus nov. gen. et sp. and T. mayoensis nov. gen. et sp. (superfamily indet.). These diversified caviomorph faunas constitute the most equatorial Paleogene record of this group. The taxa from Shapaja are not documented in other low-, mid-and high-latitudes Paleogene localities, except for Eoincamys. This genus is otherwise only found at Santa Rosa (Peruvian Amazonia, ?late Eocene/early Oligocene), thereby indicating a close temporal window for the Shapaja localities.
始新世晚期至渐新世早期的啮齿动物记录在南美洲鲜为人知。我们的团队最近在秘鲁亚马逊地区的野外工作允许在Shapaja(圣马丁省Tarapoto地区)的一个地层剖面中发现五个新的含化石地点，被哺乳动物生物地层学认为是早近新世。在这里，我们描述了来自Shapaja的洞穴形态材料，这些材料记录了17个不同的类群(在一个水平上共出现4到7个洞穴形态类群)，代表了现存的四个超科中的至少三个。8个科学上的新分类群:Kichkasteiromys raimondii 11 . gen. et sp.和Shapajamys labocensis 11 . gen. et sp.(大齿兽总科)，Selvamys paulus 11 . gen. et sp.和Mayomys confluens 11 . gen. et sp.(八齿兽总科)，Eoincamys valverdei 11 . sp.和e.parvus 11 . sp. (chin- chillo总科)，Tarapotomys subandinus 11 . gen. et sp.和t.m ayoensis 11 . gen. et sp.(超科)。这些多样化的洞穴形动物群构成了该群最接近赤道的古近纪记录。除Eoincamys外，在其他低、中、高纬度古近纪地区均未发现沙帕加的分类群。除此之外，该属仅在圣罗莎(始新世晚期/渐新世早期的秘鲁亚马逊地区)发现，从而表明了Shapaja地区的封闭时间窗口。
{"title":"Early Oligocene caviomorph rodents from Shapaja, Peruvian Amazonia","authors":"M. Boivin, Laurent Marivaux, F. Pujos, R. Salas-Gismondi, Julia V. Tejada-Lara, R. Varas-Malca, P. Antoine","doi":"10.1127/PALA/2018/0075","DOIUrl":"https://doi.org/10.1127/PALA/2018/0075","url":null,"abstract":"The rodent record during the late Eocene-early Oligocene interval is poorly known in South America. Our team's recent fieldwork in Peruvian Amazonia allowed for the discovery of five new fossil-bearing localities in a single stratigraphic section at Shapaja (Tarapoto area, San Martin Department), considered as early Oligocene by mammalian biostratigraphy. Here, we describe the caviomorph material from Shapaja, which documents 17 distinct taxa (with the co-occurrence of four to seven caviomorph taxa in a single level) representing at least three of the four extant superfamilies. Eight taxa are new to science: Kichkasteiromys raimondii nov. gen. et sp. and Shapajamys labocensis nov. gen. et sp. (Erethizontoidea), Selvamys paulus nov. gen. et sp. and Mayomys confluens nov. gen. et sp. (Octodontoidea), Eoincamys valverdei nov. sp. and E. parvus nov. sp. (?Chin-chilloidea), and Tarapotomys subandinus nov. gen. et sp. and T. mayoensis nov. gen. et sp. (superfamily indet.). These diversified caviomorph faunas constitute the most equatorial Paleogene record of this group. The taxa from Shapaja are not documented in other low-, mid-and high-latitudes Paleogene localities, except for Eoincamys. This genus is otherwise only found at Santa Rosa (Peruvian Amazonia, ?late Eocene/early Oligocene), thereby indicating a close temporal window for the Shapaja localities.","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"15 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2018-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79309177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Spassov, D. Geraads, L. Hristova, G. Markov, Biljana Garevska, Risto † Garevski
{"title":"The late Miocene mammal faunas of the Republic of Macedonia (FYROM)","authors":"N. Spassov, D. Geraads, L. Hristova, G. Markov, Biljana Garevska, Risto † Garevski","doi":"10.1127/PALA/2018/0073","DOIUrl":"https://doi.org/10.1127/PALA/2018/0073","url":null,"abstract":"","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"43 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2018-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88966385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cratovitisma odlreadi Bechly, 2007 – a beetle-like cockroach, known from single Lower Cretaceous sediment specimen from Crato in Brazil, was designated by monotypy. C. cortexi Sendi, sp.n. (Lebanon) and C. bechlyi Podstrelená, sp.n. (Myanmar) from Early and Late Cretaceous amber respectively reflect a specific bark niche with unique disruptive camouflage coloration and minimum morphological differences over the significant temporal (130 –120 – 98 Ma) and spatial (Laurasia – Gondwana) gaps. The earliest derivation within the family is documented with significantly symplesiomorphic (with Jantaropterix Vršanský, 2003) fully carinated legs.
{"title":"Cratovitisma Bechly, 2007 (Blattaria: Umenocoleidae) recorded in Lebanese and Myanmar ambers","authors":"Lenka Podstrelená, H. Sendi","doi":"10.1127/PALA/2018/0076","DOIUrl":"https://doi.org/10.1127/PALA/2018/0076","url":null,"abstract":"Cratovitisma odlreadi Bechly, 2007 – a beetle-like cockroach, known from single Lower Cretaceous sediment specimen from Crato in Brazil, was designated by monotypy. C. cortexi Sendi, sp.n. (Lebanon) and C. bechlyi Podstrelená, sp.n. (Myanmar) from Early and Late Cretaceous amber respectively reflect a specific bark niche with unique disruptive camouflage coloration and minimum morphological differences over the significant temporal (130 –120 – 98 Ma) and spatial (Laurasia – Gondwana) gaps. The earliest derivation within the family is documented with significantly symplesiomorphic (with Jantaropterix Vršanský, 2003) fully carinated legs.","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"224 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80857800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2018-05-30DOI: 10.1127/0375-0442/2018/0086
Tong Bao, J. Rust, Bo Wang
{"title":"Systematics, phylogeny and taphonomy of Cretaceous Psephenidae (Insecta: Coleoptera) from Burmese amber","authors":"Tong Bao, J. Rust, Bo Wang","doi":"10.1127/0375-0442/2018/0086","DOIUrl":"https://doi.org/10.1127/0375-0442/2018/0086","url":null,"abstract":"","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"34 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82052186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The postcranial ontogeny of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia) and implications for the evolution of ornithopod dinosaurs","authors":"T. Hübner","doi":"10.1127/pala/2018/0072","DOIUrl":"https://doi.org/10.1127/pala/2018/0072","url":null,"abstract":"","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"15 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80047375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reply to Mazza, P. et al.: “Observations on the postcranial anatomy of Hoplitomeryx (Mammalia, Ruminantia, Hoplitomerycidae) from the Miocene of the Apulia Platform (Italy)”, Palaeontographica A 307 (1– 6): 105 –147 (2016)","authors":"A. Geer","doi":"10.1127/PALA/2017/0074","DOIUrl":"https://doi.org/10.1127/PALA/2017/0074","url":null,"abstract":"","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"82 1","pages":"1-4"},"PeriodicalIF":2.7,"publicationDate":"2017-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75529001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Following the marine extinctions at the end of the Jurassic, only three clades of Plesiosauria passed into the Lower Cretaceous: Brachaucheninae (thalassophonean pliosaurids), Cryptoclididae, and Xenopsaria. However, these plesiosaur clades, and the Brachaucheninae in particular, are represented by a limited number of genera. The Berriasian to Albian thereby represents a considerable period of time (~45 Ma) lacking a plesiosaur-rich strata or Lagerstätte: a time period we here designate as the “Lower Cretaceous Gap” or LCG. One critical region for understanding LCG plesiosaurs is modern northern South America, which, during Early Cretaceous times acted as a crossover between the northern and southern hemispheres, and between the Pacific and protoAtlantic oceans, as Gondwana gradually divided. Colombia preserves one of the most complete Lower Cretaceous sedimentary successions in the world. These strata, deposited in an epicontinental sea on the margin of Gondwana, are well-exposed close to Villa de Leyva, central Colombia. From the lower Barremian Arcillolitas Abigarradas Member of the Paja Formation, we describe a new genus and species of pliosaurid, Acostasaurus pavachoquensis. Acid preparation has exposed an exceptionally well-preserved three-dimensional pliosaurid skull with superb anatomical detail, allowing thorough description of previously poorly known areas of the plesiosaur skull such as the olfactory wings, otic capsules, sclerotic plates, basicranium and mandibular symphysis. Acostasaurus displays a unique suite of characters: short preorbital rostrum, stepped maxilla contacting the nasal and parietal posteriorly, large nasal in contact with the parietal, frontal with small exposure dorsally, deep notch in the dorsal surface of orbital margin, sagittal crest formed from the parietal and squamosal, dentition markedly heterodont, four pairs of premaxillary teeth, and a mandibular symphysial region containing five-and-a-half tooth pairs, which together differentiate Acostasaurus from all the other Cretaceous pliosaurid genera. Based on analysis of morphological characters used in recent phylogenetic studies, Acostasaurus nests firmly within the increasingly inclusive Pliosauroidea and Pliosauridae, almost certainly within Thalassophonea, and with much less certainty within Brachaucheninae, assuming Acostasaurus does not represent part of a new clade passing into the Early Cretaceous. As a brevirostrine taxon, Acostasaurus is distinctly different from the generally longer-snouted Brachauchenine genera Brachauchenius, Kronosaurus, Megacephalosaurus, Makhaira and Stenorhynchosaurus. The presence of Acostasaurus, together with other as yet undescribed plesiosaurs in central Colombia, firmly establishes northern South America as a key region for understanding of the taxonomy and phylogeny of Lower Cretaceous Gap pliosaurids.
在侏罗纪末期的海洋物种灭绝之后，只有三个蛇颈龙分支进入了下白垩纪:brachacheninae (thalassophonean上龙类)，Cryptoclididae和Xenopsaria。然而，这些蛇颈龙的分支，特别是短颈龙科，只有有限的几个属。因此，Berriasian到Albian代表了相当长的一段时间(~45 Ma)缺乏蛇颈龙丰富的地层或Lagerstätte:我们在这里将这段时间称为“下白垩纪间隙”或LCG。了解LCG蛇颈龙的一个关键区域是现代的南美洲北部，在白垩纪早期，当冈瓦纳逐渐分裂时，它充当了南北半球、太平洋和原大西洋之间的交叉点。哥伦比亚保存着世界上最完整的下白垩纪沉积序列之一。这些地层沉积在冈瓦纳(Gondwana)边缘的陆表海中，暴露在哥伦比亚中部的Villa de Leyva附近。本文从巴雷米亚盆地下巴雷米亚地层的阿比加拉达斯(archillolitas abigail arradas)描述了一种新的上龙属——pavachoquensis。酸处理暴露了一个保存非常完好的三维蛇颈龙头骨，具有极好的解剖细节，可以彻底描述蛇颈龙头骨以前鲜为人知的区域，如嗅觉翼、耳囊、硬化板、基颅和下颌联合。阿斯塔龙有一套独特的特征:眶前喙短，台阶状上颌后部与鼻和顶骨接触，大鼻与顶骨接触，额部背侧暴露小，眶缘背侧深凹，由顶骨和鳞片形成矢状嵴，牙列明显异位，上颌前牙4对，下颌联合区含5对半牙。它们共同将阿斯达龙与其他白垩纪上龙区分开来。根据最近系统发育研究中使用的形态特征分析，Acostasaurus坚定地栖息在日益广泛的上鸟科和上龙科中，几乎可以肯定是在thalassophonia中，而在brachacheninae中则不太确定，假设Acostasaurus不是进入早白垩纪的新分支的一部分。Acostasaurus作为一个短鼻目分类单元，与一般长鼻的brachachenius属、Kronosaurus、Megacephalosaurus、Makhaira和Stenorhynchosaurus明显不同。在哥伦比亚中部发现的阿斯达龙和其他尚未被描述的蛇颈龙，牢固地确立了南美洲北部是了解下白垩纪裂口上龙分类和系统发育的关键地区。
{"title":"Cranial anatomy of a newpliosaurid Acostasaurus pavachoquensis from the LowerCretaceous of Colombia, South America","authors":"M. Gómez-Pérez, L. Noè","doi":"10.1127/PALA/2017/0068","DOIUrl":"https://doi.org/10.1127/PALA/2017/0068","url":null,"abstract":"Following the marine extinctions at the end of the Jurassic, only three clades of Plesiosauria passed into the Lower Cretaceous: Brachaucheninae (thalassophonean pliosaurids), Cryptoclididae, and Xenopsaria. However, these plesiosaur clades, and the Brachaucheninae in particular, are represented by a limited number of genera. The Berriasian to Albian thereby represents a considerable period of time (~45 Ma) lacking a plesiosaur-rich strata or Lagerstätte: a time period we here designate as the “Lower Cretaceous Gap” or LCG. One critical region for understanding LCG plesiosaurs is modern northern South America, which, during Early Cretaceous times acted as a crossover between the northern and southern hemispheres, and between the Pacific and protoAtlantic oceans, as Gondwana gradually divided. Colombia preserves one of the most complete Lower Cretaceous sedimentary successions in the world. These strata, deposited in an epicontinental sea on the margin of Gondwana, are well-exposed close to Villa de Leyva, central Colombia. From the lower Barremian Arcillolitas Abigarradas Member of the Paja Formation, we describe a new genus and species of pliosaurid, Acostasaurus pavachoquensis. Acid preparation has exposed an exceptionally well-preserved three-dimensional pliosaurid skull with superb anatomical detail, allowing thorough description of previously poorly known areas of the plesiosaur skull such as the olfactory wings, otic capsules, sclerotic plates, basicranium and mandibular symphysis. Acostasaurus displays a unique suite of characters: short preorbital rostrum, stepped maxilla contacting the nasal and parietal posteriorly, large nasal in contact with the parietal, frontal with small exposure dorsally, deep notch in the dorsal surface of orbital margin, sagittal crest formed from the parietal and squamosal, dentition markedly heterodont, four pairs of premaxillary teeth, and a mandibular symphysial region containing five-and-a-half tooth pairs, which together differentiate Acostasaurus from all the other Cretaceous pliosaurid genera. Based on analysis of morphological characters used in recent phylogenetic studies, Acostasaurus nests firmly within the increasingly inclusive Pliosauroidea and Pliosauridae, almost certainly within Thalassophonea, and with much less certainty within Brachaucheninae, assuming Acostasaurus does not represent part of a new clade passing into the Early Cretaceous. As a brevirostrine taxon, Acostasaurus is distinctly different from the generally longer-snouted Brachauchenine genera Brachauchenius, Kronosaurus, Megacephalosaurus, Makhaira and Stenorhynchosaurus. The presence of Acostasaurus, together with other as yet undescribed plesiosaurs in central Colombia, firmly establishes northern South America as a key region for understanding of the taxonomy and phylogeny of Lower Cretaceous Gap pliosaurids.","PeriodicalId":56099,"journal":{"name":"Palaeontographica Abteilung A-Palaozoologie-Stratigraphie","volume":"3 1","pages":"5-42"},"PeriodicalIF":2.7,"publicationDate":"2017-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81309905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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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