Journal of Vertebrate Paleontology最新文献

{"title":"Geochemical extraction of ceratopsian remains from ironstone","authors":"Emily G. Cross, Clarence Surette, Carney Matheson","doi":"10.1080/02724634.2023.2282650","DOIUrl":"https://doi.org/10.1080/02724634.2023.2282650","url":null,"abstract":"Ironstone surrounds many fossils and has a hardness that provides a significant challenge to fossil conservators globally. There are various forms of ironstone, with the carbonate forms of siderite...","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138685709","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":"The origin of modern marlins (Teleostei: Istiophoridae): new fossil evidence from the Lower Miocene of Austria","authors":"Carlos De Gracia, Björn Berning, Jürgen Kriwet","doi":"10.1080/02724634.2023.2281490","DOIUrl":"https://doi.org/10.1080/02724634.2023.2281490","url":null,"abstract":"We report the oldest fossil record of Istiophoridae from the Northern Alpine Foreland Basin (Western Paratethys) in Pucking, Austria (Lower Miocene, lower Aquitanian, ∼22.4 Ma). The studied specime...","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138685714","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 Eutherian Mammal from the Upper Cretaceous Bayinshire Formation of Mongolia","authors":"Alexey V. Lopatin, Alexander O. Averianov","doi":"10.1080/02724634.2023.2281478","DOIUrl":"https://doi.org/10.1080/02724634.2023.2281478","url":null,"abstract":"Bayshinoryctes shuvalovi gen. et sp. nov. is based on a fragmentary skull including right maxilla associated with right and left dentaries with partially preserved dentition from the Upper Cretaceo...","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138528990","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 hupehsuchian (Reptilia: Ichthyosauromorpha) from the Lower Triassic of South China with implications for the evolution of polydactyly","authors":"Yu Qiao, Ryosuke Motani, Masaya Iijima, Jun Liu","doi":"10.1080/02724634.2023.2279530","DOIUrl":"https://doi.org/10.1080/02724634.2023.2279530","url":null,"abstract":"Hupehsuchia, an enigmatic group of marine reptiles from the Lower Triassic of South China, is characterized by a suite of features including polydactyly in either or both fore and hind limbs. Parti...","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138528977","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 kannemeyeriiform dicynodont (Synapsida) from a Late Triassic vertebrate assemblage in west Texas, U.S.A.Citation for this article: Mueller, B. D., Huttenlocker, A. K., Small, B. J., Pinto, J. L., Dean-Wallace, K., &amp; Chatterjee, S. (2023) A new kannemeyeriiform dicynodont (Synapsida) from a Late Triassic vertebrate assemblage in west Texas, U.S.A. <i>Journal of Vertebrate Paleontology</i> . https://doi.org/10.1080/02724634.2023.2255236","authors":"Bill D. Mueller, Adam K. Huttenlocker, Bryan J. Small, James L. Pinto, Kendra Dean-Wallace, Sankar Chatterjee","doi":"10.1080/02724634.2023.2255236","DOIUrl":"https://doi.org/10.1080/02724634.2023.2255236","url":null,"abstract":"ABSTRACTA new kannemeyeriiform dicynodont is described from the Upper Triassic Tecovas Formation (Dockum Group) of west Texas, U.S.A. The taxon, Argodicynodon boreni gen. et sp. nov., is diagnosed by numerous cranial characters including: squamosal-interparietal sutural contact broad and interdigitating; tall, narrow intertemporal region formed by the parietals with long postorbitals forming the lateral face of the dorsal platform; interparietal forms knobby, bilobed exostoses that wedge between the parietals to form a W-shaped outline in dorsal view; basioccipital and exoccipital contributions to the occipital condyle are distinct, and the dorsal fossa separating the exoccipitals is deeply incised and dorsoventrally deep; caniniform process of the maxilla is dorsoventrally deep and well developed; and an elongated tab-like medial process of the articular exceeds the width of the quadrate roller. A phylogenetic analysis based on 23 continuous and 176 discrete (numeric) morphological characters and 120 taxa finds Argodicynodon conservatively to be a placeriine near the Placerias + Moghreberia group, representing the oldest placeriine in the southwestern U.S.A. and the first named dicynodont genus from the Dockum Group of Texas. A review of Euramerican dicynodont records exposes their hidden diversity and abundance in Laurasia during the Late Triassic. The records of Argodicynodon and other previously undescribed dicynodont fossils from nearby localities underscores the diversity of non-Placerias dicynodonts in the North American Upper Triassic.http://zoobank.org/urn:lsid:zoobank.org:pub:AB9B7ABC-6C84-4B04-909F-F1DA114030AB ACKNOWLEDGMENTSThis study is based in part on the dissertation of BDM under the guidance of his committee members SC, J. Barrick, and T. Lehman. We thank J. Boren and the Boren family for granting access to the site and the generous donation of the fossil material to the Museum of Texas Tech University. We thank the numerous Texas Tech students and volunteers who assisted in the field and lab. B. Meyers is acknowledged for discovery of the locality MOTT VPL 3881 and the left humerus (TTU-P10421). We also thank P. Holroyd and the UCMP for access to comparative material from the Placerias quarry. Special thanks to D. Cunningham, G. Gürtler, A. Hungerbühler, J. Martz, S. Nesbitt, and W. Parker for assistance in various aspects of this project. We also thank K. Angielczyk, C. Kammerer, and T. Sulej for their helpful feedback on our manuscript. This project was made possible through the support of the Museum of Texas Tech University.DISCLOSURE STATEMENTNo potential conflict of interest was reported by the author(s).AUTHOR CONTRIBUTIONSBDM designed the project and wrote sections for the initial draft as part of his unpublished doctoral dissertation. AKH and BJS collected data, revised and edited the manuscript, drafted and revised the figures, and performed the phylogenetic analyses. AKH and JLP collected additional comparative data a","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135868820","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":"Revision of the Late Miocene hornless rhinocerotids from Samos Island (Greece) with the designation of neotypes and implications for the European chilotheresCitation for this article: Kampouridis, P., Svorligkou, G., Kargopoulos, N., Spassov, N., &amp; Böhme, M. (2023) Revision of the Late Miocene hornless rhinocerotids from Samos Island (Greece) with the designation of neotypes and implications for the European chilotheres. <i>Journal of Vertebrate Paleontology</i> . https://doi.org/10.1080/…","authors":"Panagiotis Kampouridis, Georgia Svorligkou, Nikolaos Kargopoulos, Nikolai Spassov, Madelaine Böhme","doi":"10.1080/02724634.2023.2254360","DOIUrl":"https://doi.org/10.1080/02724634.2023.2254360","url":null,"abstract":"Extant rhinoceroses are represented only by five species and are characterized by the presence of a nasal horn. In the past, they were much more diverse, with one of the best-known groups being the aceratheriines, i.e., hornless rhinoceroses. Chilotheres are a group of hornless rhinos that inhabited Eurasia during the Late Miocene. Their westernmost geographic range reached Eastern Europe, where overall eight species have been erected. Four of these were described based on material from the Upper Miocene of Samos Island (Greece), two of which are not considered valid anymore. Unfortunately, the type skulls of all four species are lost and there are several issues concerning their taxonomy. Therefore, we herein designate two skulls housed in historical collections from Samos as neotypes for the first two species, Chilotherium schlosseri (Weber, 1905) and Eochilotherium samium (Weber, 1905), and provide detailed comparisons for the separation of the species from each other and from any other chilotheres. Our results prove that the two species are valid and justify their separation on a generic level. Chilotherium schlosseri seems to be more closely affiliated with the other European Chilotherium species, whereas E. samium is more similar to the Chinese ‘Chilotherium’ wimani and ‘Chilotherium’ primigenium, based on their more plesiomorphic characters.","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135935126","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 saw-toothed eel † <i>Serrivomer glehni</i> sp. nov. from the Miocene of Sakhalin Island, north-western PacificCitation for this article: Nazarkin, M. V. (2023) A saw-toothed eel † <i>Serrivomer glehni</i> sp. nov. from the Miocene of Sakhalin Island, north-western Pacific. <i>Journal of Vertebrate Paleontology</i> . https://doi.org/10.1080/02724634.2023.2261505","authors":"Mikhail V. Nazarkin","doi":"10.1080/02724634.2023.2261505","DOIUrl":"https://doi.org/10.1080/02724634.2023.2261505","url":null,"abstract":"ABSTRACT†Serrivomer glehni, a new species of the Neogene saw-toothed eel (Anguilliformes, Serrivomeridae) is described based on the 55 specimens from the Middle–Upper Miocene Kurasi Formation of Sakhalin Island, Russia. This is the third record of fossil saw-toothed eels since the recovery of partial skeletons from the Miocene of Japan and Italy. The new species demonstrates close similarity to the extant Serrivomer species in overall body form and shape of separate bones and their complexes. The new species is characterized by the “longidentatus” type of vomerine dentition and by a single branchiostegal ray protruding beyond the hyoid bar, which suggests a close affinity to the modern S. sector. It can be reliably distinguished from all other species of Serrivomer by its lower number of vertebrae (134 vs. 140–172) and its larger cleithrum, which is positioned under the seventh instead of the eighth vertebral centrum.http://zoobank.org/urn:lsid:zoobank.org:pub:50673E06-602C-4CA1-8CFF-AD992BCAEBED ACKNOWLEDGMENTSI am grateful to A. I. Pinchuk (University of Alaska) for his great help with the English. Special thanks go to A. M. Prokofiev (A.N. Severtsov's Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia) for donation of comparative materials. I thank the editors, along with anonymous reviewers for their valuable comments and corrections to the manuscript. The reported study was funded by the Russian Government Research Theme No. 122031100285-3.AUTHOR CONTRIBUTIONSThe author confirms sole responsibility for the study concept, data collection, analysis and interpretation of results, and preparation of the manuscript.DISCLOSURE STATEMENTNo potential conflict of interest was declared by the author.","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934066","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":"The first articulated skull roof and braincase of <i>Melvius chauliodous</i> (Amiidae, Vidalamiinae) from the Upper Cretaceous Kirtland Formation, San Juan Basin, New MexicoCitation for this article: Sullivan, R. M., Jasinski, S. E., &amp; Williamson, T. E. (2023) The first articulated skull roof and braincase of <i>Melvius chauliodous</i> (Amiidae, Vidalamiinae) from the Upper Cretaceous Kirtland Formation, San Juan Basin, New Mexico. <i>Journal of Vertebrate Paleontology</i> . https://doi.org…","authors":"Robert M. Sullivan, Steven E. Jasinski, Thomas E. Williamson","doi":"10.1080/02724634.2023.2264341","DOIUrl":"https://doi.org/10.1080/02724634.2023.2264341","url":null,"abstract":"ABSTRACTA new, exceptionally well-preserved articulated skull roof and braincase of Melvius chauliodous, from the Kirtland Formation of New Mexico, reveals new features that provide detailed osteological information for Melvius, thus allowing for a reassessment of characters that defines the genus, its two recognized species M. chauliodous and M. thomasi, and its phylogenetic relationships within Vidalamiinae. The new features include the presence of dermopterotic rays (‘ribs’) and parietal ray bundles, previously unknown for both species of Melvius. The presence of elongated dermopterotic rays, a feature previously considered to be distinctive for the genus Calamopleurus, and tribe Calamopleurini, is now documented in Melvius, but these rays differ in their point of origination at the posteromedial corners of both dermopterotics. Bundles of short fan-shaped rays emanating from below the posterolateral corners of the parietals are also documented in both species of Melvius. Melvius was previously placed in the tribe Vidalamiini (Subfamily Vidalamiinae), but because it shares some unique features with members of the tribe Calamopleurini and the genus Calamopleurus, its placement within Vidalamiini, and the recognition of these two distinct clades (tribes) within Vidalamiinae, are not supported in our phylogenetic analysis. Previous characters distinguishing Melvius species, particularly differences in postinfraorbital ornamentation between M. chauliodous and M. thomasi, are considered dubious. However, other features may serve to determine interspecific variation or differences. For the present, we retain both species until more definitive material of M. thomasi is described. ACKNOWLEDGMENTSForemost, RMS thanks J. Petersen (discoverer) and T. Knopick who helped collect the specimen, and who have been invaluable field assistants to RMS in collecting fossil vertebrates from the San Juan Basin for over a decade. We are especially grateful to P. Holroyd (UCMP) for providing photos of UCMP 131707 and UCMP 129681 that were crucial in identifying this latter element. Thanks are also extended to M. Sims (KU Biodiversity Institute and Natural History Museum) for verifying the locality information of the KUVP specimens mentioned within and for providing us with high resolution photos of KUVP 88378 that helped in interpreting and reconfirming the identity of this element. Special thanks to T. Tokaryk and M. Gilbert for additional information regarding Canadian occurrences of Melvius. RMS thanks D. Fowler (Dickinson Museum Center and Badlands Dinosaur Museum) for discussions regarding phylogenetic analyses and paleogeography as they pertain to this study. N. Volden (NMMNH) aided in securing information regarding the fossil amiid specimens previously housed in the collections of the University of New Mexico and we thank her for her help. L. Rinehart prepared the ventral side of NMMNH P-88899 and RMS prepared the dorsal side of the specimen. RMS thanks P. Reser","PeriodicalId":17597,"journal":{"name":"Journal of Vertebrate Paleontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135271589","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}