Annales de Paleontologie最新文献

{"title":"Les Pseudholaster (Echinoidea, Holasteroida) du Crétacé de France","authors":"Jean-Christophe Dudicourt","doi":"10.1016/j.annpal.2021.102519","DOIUrl":"10.1016/j.annpal.2021.102519","url":null,"abstract":"<div><p>In the order of Holasteroida, the fossil record highlights a contradiction between the genus <em>Pseudholaster</em> that appears in the Aptian, whose plastron is prostostern close to the Jurassic ancestors and the genus <em>Holaster</em>, which appears in the Valanginian, whose meridostern plastron appears more derived. This inconsistency can be explained by the ignorance of the plastronal architecture on the part of the early authors. A review of the species of <em>Pseudholaster</em> from the Cretaceous period of France was therefore carried out. The objective was to statistically determine the discriminating morphological characters, and to study the modifications of the architecture of the interambulacrum 5 of the French species belonging to this genus, as well as to the species included in the genus <em>Holaster</em> incorrectly by earlier authors. This review of the species of the genus <em>Pseudholaster</em> begins with a study of the ontogeny of the species <em>Holaster intermedius</em> Münster <em>in</em> Goldfuss, 1826–1833, first representative of the genus <em>Pseudholaster</em>, which appears in the Hauterivian in the Parisian and Rhodano-vocontian basins. The modifications during growth concern the overall shape, but also the plastron architecture: the number of plastron plates increases while the number of plates located between the peristome and the periproct remains fixed. The plastron of this species is protosternal and not meridosternal as Lambert pointed out. The labrum is cupuliform in contact with the second sternal 5a2 by a narrow digitation. However, this arrangement differs from that observed on a protosternal breastplate. This apomorphism of the plastron plate pattern, called “labrotaxienne”, is found in all the <em>Pseudholaster</em> studied, and the study of the architecture of the interambulacrum 5 also reveals a gradual decrease in the number of preanal plates between the oldest (Hauterivian) and the younger (Cenomanian-Lower Turonian) species studied. Most of the French species have been revised, with some synonyms. A new species, <em>P. neraudeaui</em>, is the last known <em>Pseudholaster</em> dated from the upper Cenomanian and lower Turonian of southwestern France. Our study illustrates the evolution of the genus <em>Pseudholaster</em> between the Hauterivian and the early Turonian in France. The interest of the study is to show that the appearance of the genus <em>Pseudholaster</em> is older than that of the genus <em>Holaster</em>. <em>Pseuholaster intermedius</em>, of Hauterivian age, possesses a derived protostern plastron called here “labrotaxien” and not meridostern as defined historically by Lambert, and to reveal that the number of preanals decreases over geological time. This data is essential for future phylogenetic studies. On a palaeobiogeographical level, the study reveals the expansion of the genus <em>Pseudholaster</em> during early Cretaceous in western Europe, with diversification during t","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 4","pages":"Article 102519"},"PeriodicalIF":1.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44357976","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}

{"title":"Middle Permian ostracod fauna from the Khao Khad Formation (Indochina Terrane), Central Thailand","authors":"Anisong Chitnarin ,&nbsp;Chatchalerm Ketwetsuriya","doi":"10.1016/j.annpal.2021.102521","DOIUrl":"10.1016/j.annpal.2021.102521","url":null,"abstract":"<div><p>Permian ostracods are reported for the first time from the Wordian (Middle Permian) Khao Khad Formation of Saraburi Group (Lopburi Province, Central Thailand). The ostracod fauna consists of 18 species belonging to 11 genera including <em>Bairdia</em>, <em>Bohlenatia,</em> <em>Liuzhinia</em>, <em>Silenites</em>, <em>Acratia</em>, <em>Bairdiacypris</em>, <em>Basslerella</em>, <em>Aurigerites</em>, <em>Microcheilinella</em>, <em>Paraparchites</em> and <em>Shemonaella</em>. The studied Khao Khad Limestone, which are rich in fusulinids, gastropods, ostracods, bivalves and brachiopods, was deposited in a shallow carbonate platform on the western margin of the Indochina Terrane. The ostracod assemblage is typically Palaeo-Tethyan and similar to faunas from the other Lower to Middle Permian limestones in central Thailand.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 4","pages":"Article 102521"},"PeriodicalIF":1.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42088548","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}

{"title":"Addendum à l’article « Les faunes coralliennes de l’Oligocène de Malte : biodiversité et paléoenvironnement. ». Annales de Paléontologie 107 (2021) 102508","authors":"Jean-Paul Saint Martin ,&nbsp;Christian Chaix ,&nbsp;Bruno Cahuzac ,&nbsp;Pierre Moissette ,&nbsp;Jean-Pierre André","doi":"10.1016/j.annpal.2021.102523","DOIUrl":"10.1016/j.annpal.2021.102523","url":null,"abstract":"","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 4","pages":"Article 102523"},"PeriodicalIF":1.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48778960","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}

{"title":"Les faunes coralliennes de l’Oligocène de Malte : biodiversité et paléoenvironnement","authors":"Jean-Paul Saint Martin ,&nbsp;Christian Chaix ,&nbsp;Bruno Cahuzac ,&nbsp;Pierre Moissette ,&nbsp;Jean-Pierre André","doi":"10.1016/j.annpal.2021.102508","DOIUrl":"10.1016/j.annpal.2021.102508","url":null,"abstract":"<div><p>The study of the coral biodiversity of the Upper Oligocene sedimentary series (Lower Coralline Limestone, Chattian) of Malta permitted the identification of 25 scleractinian genera represented by 41 species. Three new species are proposed: <em>Miophora</em> <em>naxxarensis</em> n. sp., <em>Nerthastraea</em> <em>maltensis</em> n. sp. and <em>Gyrosmilia</em> <em>maltensis</em> n. sp. Observations made in various Oligocene sites in Malta, especially around Naxxar and Tal Bajjada, allow to establish a suite of coral associations which may vary spatially and vertically. The identified scleractinian associations can be represented by different types of coral assemblages and bioconstructions: isolated colonies, coral beds of varying density but of large spatial extent, more cohesive coral banks (coral carpets) or patch reefs forming morphologies with gentle lateral slopes. The colonial morphologies are closely linked to these different types of bioconstructions. These coral constructions have been established and developed in shallow marine areas. The coral biodiversity of the Oligocene of Malta fits well in the evolution of the Cenozoic reef phenomenon whose development reached its peak in the Oligocene with great coral richness in the Chattian in the Mediterranean area.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 3","pages":"Article 102508"},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48949916","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}

{"title":"Paléoécologie des foraminifères benthiques de nouvelles coupes de basse latitude du passage Crétacé-Paléogène : Coupes de l’Oued Es Smara et de l’Oued Abiod (région de Téjerouine, NW Tunisie)","authors":"Njoud Gallala ,&nbsp;Moez Ben Fadhel","doi":"10.1016/j.annpal.2021.102491","DOIUrl":"10.1016/j.annpal.2021.102491","url":null,"abstract":"<div><p>Due to an impact of a bolide at the K/Pg boundary, the planktonic foraminifera have suffered sever mass extinction. However, no small Benthic Foraminifera species have documented mass extinction at the K/Pg boundary. Nevertheless, many species showed disturbance. The Maastrichtian assemblages may be different from those of the lower Paleogene by their species content, diversity and frequencies. At Oued Es Smara and Oued Abiod sections, the small benthic foraminifera indicate lower bathyal environment, and manifest significant faunal turnover. Until the uppermost Maastrichtian, their assemblages are highly diversified, with 77 species and 76 species respectively at Oued Es Smara and Oued Abiod sections. These are dominated by endobenthic morphotypes. At the K/Pg boundary, although 33 species (42,85%) (Oued Es Smara section) and 27 species (35,52%) (Oued Abiod section) of them seem to disappear, but only few species have really extinct such as <em>Arenobulimina obesa</em>. Nevertheless, the majority of species persist elsewhere at the Danian (e.g., <em>Pseudoglandulina manifesta, Cibicioides proprius, Clavulinoides amorpha, Coryphostoma plaitum, Pullenia coryelli).</em> At the lower Danian, the survivor Maastrichtian species are of 58% (Oued Es Smara) and 65% (Oued Abiod). Throughout the <em>Parasubbotina pseudobulloides</em> subzone, 4 others species were progressively disappeared. They are oligotrophic and low oxygen tolerant<em>.</em> About the Masstrichtian species, at the two studied sections (e.g. <em>Gaudryina inflata</em> and <em>Tritaxia midwayensis)</em> they seem to be more trophic exigent. Consequently, the benthic Foraminifera did not suffer massive extinction at the K/Pg boundary, but their assemblages underwent a significant faunal turnover which reflects important environmental changes. These changes are compatible with the catastrophic scenario induced by the large asteroid impact.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 3","pages":"Article 102491"},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43959772","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}

{"title":"Corrigendum to “Biostratigraphy and Paleobiogeographic implications of the Cenomanian – Early Turonian Ostracods of Egypt” [Ann. Paleontol. 106 (2020) 102408]","authors":"Mohamed M. Khalil","doi":"10.1016/j.annpal.2021.102505","DOIUrl":"10.1016/j.annpal.2021.102505","url":null,"abstract":"","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 3","pages":"Article 102505"},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102505","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42553672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The oldest nautiloid recorded from the Triassic Germanic Basin and the first ammonoid from the Aegean (Middle Triassic) of Poland","authors":"Robert Niedźwiedzki ,&nbsp;Dawid Surmik ,&nbsp;Agnieszka Chećko ,&nbsp;Karolina Paszcza ,&nbsp;Sreepat Jain ,&nbsp;Mariusz A. Salamon","doi":"10.1016/j.annpal.2021.102507","DOIUrl":"10.1016/j.annpal.2021.102507","url":null,"abstract":"<div><p><span>During the Triassic in Europe, the Germanic Basin extended from England in the west to the eastern border of Poland in the east. Although cephalopods are common in some Middle Triassic (Muschelkalk) horizons, there still persists a gap in the palaeontological record of the eastern part of the Germanic Basin, notably in the lowermost parts of the Lower Muschelkalk, spanning the latest Olenekian-Aegean interval. The present contribution attempts to fill this gap by presenting the first ammonoid (ceratitid </span><em>Beneckeia</em> sp.) and nautiloids (<em>Germanonautilus</em> cf. <em>dolomiticus</em> and <em>G.</em> cf. <em>salinarius</em>) from the Lower Gogolin Beds (Upper Silesia, Poland). These <em>Germanonautilus</em> are the oldest nautiloids found in the entire Germanic Basin.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 3","pages":"Article 102507"},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102507","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47053749","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}

{"title":"Tragoportax and Miotragocerus from Nagri Formation type locality, Siwalik Group, Pakistan (early Late Miocene): Taxonomic problems and hypotheses regarding their resolution","authors":"Sayyed Ghyour Abbas ,&nbsp;Muhammad Adeeb Babar ,&nbsp;Muhammad Akbar Khan ,&nbsp;Ibrar Hussain ,&nbsp;Muhamamd Akhtar ,&nbsp;Aamir Yasin ,&nbsp;Maheen Khalid","doi":"10.1016/j.annpal.2021.102490","DOIUrl":"10.1016/j.annpal.2021.102490","url":null,"abstract":"<div><p>This article focuses on some new material of currently called <em>Miotragocerus</em>/<em>Tragoportax</em> complex of species, collected from Nagri type locality, early Late Miocene (10.039 to 9.969<!--> <!-->Ma) of the Siwalik Group of Pakistan. Along with the material description, the issues regarding the taxonomic status of <em>Tragoportax</em>, <em>Miotragocerus</em>, <em>Sivaceros</em> and <em>Helicoportax</em> are briefly discussed on the basis of preliminary results of ongoing thorough research on the Siwalik bovids. Furthermore, the priority of <em>Graecoryx</em> over <em>Miotragocerus</em>, the synonymy of <em>Sivaceros</em> with <em>Graecoryx</em>, the distinction between <em>Tragoportax</em> and <em>Graecoryx</em>, and some hypotheses have been laid down for future work, based on the morphological study.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 3","pages":"Article 102490"},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102490","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42032053","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}

{"title":"Brittle stars from the upper Cenomanian of the Preafrican platform: First ophiuroid remains for the Cretaceous of Algeria","authors":"Richard Štorc ,&nbsp;Madani Benyoucef","doi":"10.1016/j.annpal.2021.102489","DOIUrl":"10.1016/j.annpal.2021.102489","url":null,"abstract":"<div><p>While Late Cretaceous ophiuroids are relatively well known in Europe, these faunas have been much less studied in North Africa. With the exception of some Tunisian assemblages preliminary described at the turn of the 21st century, nothing is known about the Cretaceous brittle stars of the southwestern Tethyan margin. The present paper seeks to bring the first data about hitherto unknown ophiuroids recently found in the early upper Cenomanian succession of the eastern side of the Preafrican trough (Menaguir section, Algeria). This “community” of brittle stars comprises at least eight species. Most of them are probably new, but have not been formally named here. These are representatives of the families Hemieuryalidae, Amphiuridae, Ophiodermatidae, Ophiacanthidae, Ophiopezidae and probably also Ophiomyxidae and Ophiobyrsidae. Almost all vertebrae are zygospondylous; no streptospondylous vertebrae indicate the absence of the order Euryalida here. Most of the ophiuroids belong to the orders Amphilepidida and Ophiacanthida. <em>Ophiotitanos serrata</em>, <em>Ophiomyxa</em>? aff. <em>jekerica</em>, <em>Ophiojagtus</em>? sp. and some other taxa resembling ophiuroid assemblages from the Late Cretaceous of central, western and northern Europe. With respect to the late Cenomanian age, the depth of the sea and the taxonomic composition, there are some similarities with ophiuroids of the Bohemian Cretaceous Basin. The mid-ramp subtidal facies suggests that brittle stars lived here in a warm, euphotic and probably shallow sea.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 3","pages":"Article 102489"},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102489","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43361762","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}

{"title":"A new stratigraphic occurrence of the taxon Pagetia (Trilobita) from the Spiti region and its biostratigraphic significance in correlation of the Wuliuan Stage (Miaolingian Series) in the Kashmir and the Spiti regions (Tethyan Himalaya), India","authors":"Birendra P. Singh ,&nbsp;Jinliang Yuan ,&nbsp;Om. N. Bhargava ,&nbsp;Garry Singla ,&nbsp;Ramanpreet Kaur ,&nbsp;Stanzin Stopden ,&nbsp;Scott Morrison ,&nbsp;Madhusudan Sati ,&nbsp;Deepak Kumar ,&nbsp;Ali Wazir","doi":"10.1016/j.annpal.2021.102506","DOIUrl":"10.1016/j.annpal.2021.102506","url":null,"abstract":"<div><p>Abundant, though moderately well-preserved, specimens of <em>Pagetia</em> sp<em>.</em> are recorded along with the ptychopariid <em>Xingrenaspis</em> <em>dardapurensis</em> from a new stratigraphic level which lies above the <em>Oryctocephalus salteri</em> biozone in the Spiti region (Himalaya). This occurrence of <em>Pagetia</em> in a higher stratigraphic level (higher than the <em>Oryctocephalus salteri</em><span> biozone) from the Spiti region helps in understanding the distribution of this taxon in the Cambrian of the Kashmir and Spiti regions of the Himalaya. A </span><em>Pagetia</em>-<em>Xingrenaspis</em> association from the Kashmir region is already known, the present discovery of a similar association in the Spiti region enables the Wuliuan (Miaolingian) biostratigraphic correlation between the Kashmir and the Spiti regions. The record of the taxon <em>Pagetia</em> from a higher stratigraphic level in the Spiti region contradicts the previous assumption that the <em>Pagetia</em> bearing level in Kashmir is equivalent to the <em>Pagetia</em>-<em>Oryctocephalus</em> <em>indicus</em> (<em>O. indicus</em> biozone, Hayden horizon 2) in the lowest part of the Wuliuan in the Spiti region.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 3","pages":"Article 102506"},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102506","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48738573","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}