Annales de Paleontologie最新文献

{"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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}

{"title":"Implications of an early land plant spore assemblage for the late Silurian age of the Si Ka Formation, northern Vietnam","authors":"Julien Legrand ,&nbsp;Toshihiro Yamada ,&nbsp;Toshifumi Komatsu ,&nbsp;Mark Williams ,&nbsp;Tom Harvey ,&nbsp;Tim De Backer ,&nbsp;Thijs R.A. Vandenbroucke ,&nbsp;Phong Duc Nguyen ,&nbsp;Hung Dinh Doan ,&nbsp;Hung Ba Nguyen","doi":"10.1016/j.annpal.2021.102486","DOIUrl":"10.1016/j.annpal.2021.102486","url":null,"abstract":"<div><p>The first plant microfossil assemblage from the Si Ka Formation of the Song Cau Group, northern Vietnam is reported. It is composed of cryptospores in dyads and tetrads, trilete spores, tubular remains consisting of an association of smooth, banded, and externally thickened tubes, and cuticle-like fragments. The biostratigraphic assemblage of sporomorphs indicates a late Silurian (late Ludfordian) to Early Devonian (early Lochkovian) age. Further comparison with coeval reports using the characteristic features of the assemblage confines their age to the late Ludlow (late Ludfordian) to early Přídolí. This report presents the oldest spore assemblage from Vietnam and contributes to a broader understanding of its paleo-landscape during the late Silurian.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102486","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48252057","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":"New data on the Rectogordius (foraminifera) abundance zone (Latest Carboniferous: Gzhelian) of the Zaladou Formation (east-central Iran, Tabas block, Shishtu section)","authors":"A. Jalali, H. Yarahmadzahi, D. Vachard, M. Arian, A. Saidi, M. Aleali","doi":"10.1016/J.ANNPAL.2021.102487","DOIUrl":"https://doi.org/10.1016/J.ANNPAL.2021.102487","url":null,"abstract":"","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85901509","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":"New data on the Rectogordius (foraminifera) abundance zone (Latest Carboniferous: Gzhelian) of the Zaladou Formation (east-central Iran, Tabas block, Shishtu section)","authors":"Ali Jalali ,&nbsp;Hamed Yarahmadzahi ,&nbsp;Daniel Vachard ,&nbsp;Mehran Arian ,&nbsp;Abdollah Saidi ,&nbsp;Mohsen Aleali","doi":"10.1016/j.annpal.2021.102487","DOIUrl":"https://doi.org/10.1016/j.annpal.2021.102487","url":null,"abstract":"<div><p>The <em>Rectogordius</em> (Foraminifera) abundance zone is described in the east of the Shishtu village in the Ozbak Kuh Mountain. The samples were collected in the Zaladou Formation., which is 60<!--> <!-->m thick and composed of shales, sandstones, sandy limestones, microconglomerate, bioclastic limestones, coral limestone and fusulinid limestones. The <em>Rectogordius</em> abundance zone was found in sandy bioclastic limestone. It displays two species and three subspecies of this foraminifer, including <em>Rectogordius iranicus</em>, <em>R. iranicus gadukensis</em>, <em>R. minimus</em> and <em>R. minimus shishtuensis</em> n. subsp., <em>R. iranicus ozbakensis</em> n. subsp. The age of this abundance zone is considered to be Gzhelian, due to the distribution of <em>Rectogordius</em> in Central Iran (Ozbak Kuh; Zaladou Formation), central and eastern Alborz (Emarat Fm.), Sanandaj-Sirjan zone (Vazhnan Formation), as well as in the Donets, Arctic Canada, Afghanistan, and the Carnic Alps. The genus <em>Rectogordius</em> is possibly restricted to the northern Paleotethys margin, northern Cimmerian margin, shelf of the Uralian Ocean as far as the northernmost part of North America. Two new subspecies <em>Rectogordius minimus shishtuensis</em> n. subsp. and <em>Rectogordius iranicus ozbakensis</em> n. subsp. are described.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102487","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91773369","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":"Hrabalicrinus zitti gen. et sp. nov., and other Upper Jurassic crinoids (Echinodermata, Crinoidea) from the Brno area (Czech Republic)","authors":"Mariusz A. Salamon ,&nbsp;Miroslav Bubík ,&nbsp;Bruno Ferré ,&nbsp;Piotr Duda ,&nbsp;Bartosz J. Płachno","doi":"10.1016/j.annpal.2021.102482","DOIUrl":"https://doi.org/10.1016/j.annpal.2021.102482","url":null,"abstract":"<div><p>Jurassic (Oxfordian) crinoids from the Brno area (Czech Republic) are described in details for the first time. A rich crinoid assemblage consisting of cups, isolated cup elements, brachial plates, columnals, pluricolumnals, and cirrals is assigned to isocrinids <em>Isocrinus amblyscalaris</em> (Thurmann), <em>Balanocrinus subteres</em> (Münster), <em>B. pentagonalis</em> (Goldfuss), Isocrinida indet., comatulid <em>Hrabalicrinus zitti</em> gen. et sp. nov., cyrtocrinids <em>Lonchocrinus</em> sp., <em>Cyrtocrinus</em> cf. <em>nutans</em> (Goldfuss), <em>Pilocrinus moussoni</em> (Desor), <em>Tetracrinus moniliformis</em> Münster, Cyrtocrinida indet., and millericrinids (Millericrinida indet.). Crinoids already mentioned from the Jurassic strata of the Czech Republic are subsequently revised. Apart from the isolated remains of Isocrinida, Millericrinida, and Thiolliericrinida, the presence of any other taxon reported from this area should be treated with extreme caution. A rare example of non-regenerative columnal healing (the so-called callus) in <em>I. amblyscalaris</em> is also described. Based on sedimentology and microfacies, the Jurassic limestones were deposited in various palaeoenvironments of upper carbonate platform and shelf lagoon (0 to &gt;<!--> <!-->50 m palaeodepth).</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102482","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90128228","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":"Cenomanian (Upper Cretaceous) bivalves from the Hameimat Massifs, north of Tebessa, Algeria: Systematics, biostratigraphy, palaeoecological and taphonomical remarks","authors":"Samira Mendir ,&nbsp;Sihem Salmi-Laouar ,&nbsp;Gamal M. El Qot ,&nbsp;Wagih Ayoub-Hannaa ,&nbsp;Bruno Ferré","doi":"10.1016/j.annpal.2021.102471","DOIUrl":"10.1016/j.annpal.2021.102471","url":null,"abstract":"<div><p>In the eastern Saharan Atlas, particularly in the northern area of Tebessa Province (NE Algeria), the widely outcropping Cenomanian strata display a highly diversified macrofauna, among which bivalves are prominently represented. Twenty-eight bivalve species are here reported for the first time from the Cenomanian of Hameimat Massifs. Based on the stratigraphic distribution of these bivalves, five bivalve zones were recognized, i.e., <em>Costagyra olisiponensis</em> - <em>Gyrostrea delettrei</em>, <em>Rhynchostreon suborbiculatum</em> - <em>Exogyra conica</em>, <em>Ceratostreon flabellatum</em>, <em>Ilymatogyra africana</em>, and <em>Pycnodonte vesicularis vesiculosa</em> - <em>Rastellum carinatum</em> zones. Correlation to the ammonite biozones of the same region as follows: the <em>Costagyra olisiponensis</em> - <em>Gyrostrea delettrei</em> and the <em>Rhynchostreon suborbiculatum</em> - <em>Exogyra conica</em> zones occur respectively in the <em>Sharpeiceras schlueteri</em> and <em>Mantelliceras saxbii</em> subzones of the lower Cenomanian <em>Mantelliceras mantelli</em> Zone. The <em>Ceratostreon flabellatum</em> Zone is correlated with the middle Cenomanian <em>Acanthoceras rhotomagense</em> Zone. The <em>Ilymatogyra africana</em> Zone is correlated with the upper Cenomanian <em>Calycoceras naviculare</em> and the <em>Metoicoceras geslinianum</em> zones. Finally, the <em>Pycnodonte vesicularis vesiculosa</em> - <em>Rastellum carinatum</em> Zone represents the uppermost Cenomanian. Detailed analysis of biometrical and morphological features of these bivalve specimens provides the most reliable tool within the scope of palaeo-environmental reconstitution and the many palaeo-ecological variables that had driven the development and distribution of these macro-invertebrates. Comparison of these new data to those of adjacent south Tethyian areas supports the homogeneity of the Cenomanian bivalve faunas. Such an affinity underlines more vividly the favorable marine communications and currents driving the geographic dispersal of these bivalves during the Cenomanian.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102471","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82172262","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":"New data on the Dyrosauridae (Crocodylomorpha) from the Paleocene of Togo","authors":"Yawovi Zikpi Amoudji ,&nbsp;Guillaume Guinot ,&nbsp;Lionel Hautier ,&nbsp;Koffi Evenyon Kassegne ,&nbsp;Nils Chabrol ,&nbsp;Anne-Lise Charruault ,&nbsp;Ampah Kodjo C. Johnson ,&nbsp;Raphaël Sarr ,&nbsp;Pauline Yawoa D. Da Costa ,&nbsp;Jeremy E. Martin","doi":"10.1016/j.annpal.2021.102472","DOIUrl":"10.1016/j.annpal.2021.102472","url":null,"abstract":"<div><p><span>Following our fieldwork in Paleogene deposits of Togo, we herein report cranial as well as postcranial elements belonging to the family Dyrosauridae. This assemblage is dated to the Late Paleocene (Thanetian) from two quarries in southern Togo. The specimens include a partial skull presenting two large supratemporal fossae and a massive occipital condyle; long and slender isolated teeth; amphicoelous vertebrae including several articulated ones; and two osteoderms devoid of carina. The morphology of the partial skull reveals similarities with some African longirostrine forms such as </span><em>Rhabdognathus</em> spp., although this attribution cannot be confirmed. Longirostrine forms, known in the late Paleocene and early Eocene of the Iullemmeden basin (Nigeria, Niger, Mali, Algeria) and in the phosphates of Morocco and Tunisia, is only represented in Thanetian levels in Togo. Different palaeoenvironmental settings seem to have characterized the various African basins during the lower Eocene, with consequences for the geographic distribution of dyrosaurids. These dyrosaurid remains confirm the presence of the family in Togo during the Paleocene and underline the fossiliferous potential of the coastal sedimentary basin in Togo and in the bay of Benin.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.annpal.2021.102472","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48262097","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}