دورية أكاديمية
A juvenile pleurosaurid (Lepidosauria: Rhynchocephalia) from the Tithonian of the Mörnsheim Formation, Germany.
| العنوان: | A juvenile pleurosaurid (Lepidosauria: Rhynchocephalia) from the Tithonian of the Mörnsheim Formation, Germany. |
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| المؤلفون: | Beccari V; SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, Munich, Germany.; Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität, Munich, Germany., Villa A; Institut Català de Paleontologia Miquel Crusafont (ICP-CERCA), Edifici ICTA-ICP, Barcelona, Spain., Jones MEH; Fossil Reptiles, Amphibians and Birds Section, Science Group, Natural History Museum, London, UK.; Research Department of Cell and Developmental Biology, Anatomy Building, UCL, University College London, London, UK., Ferreira GS; Senckenberg Centre for Human Evolution and Palaeoenvironment at the University of Tübingen, Tübingen, Germany.; Fachbereich Geowissenschaften, Eberhard Karls Universität Tübingen, Tübingen, Germany., Glaw F; SNSB-Zoologische Staatssammlung, Munich, Germany.; GeoBioCenter, Ludwig-Maximilians-Universität, Munich, Germany., Rauhut OWM; SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, Munich, Germany.; Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität, Munich, Germany.; GeoBioCenter, Ludwig-Maximilians-Universität, Munich, Germany. |
| المصدر: | Anatomical record (Hoboken, N.J. : 2007) [Anat Rec (Hoboken)] 2024 Jul 22. Date of Electronic Publication: 2024 Jul 22. |
| Publication Model: | Ahead of Print |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: John Wiley & Sons Country of Publication: United States NLM ID: 101292775 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1932-8494 (Electronic) Linking ISSN: 19328486 NLM ISO Abbreviation: Anat Rec (Hoboken) Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Hoboken, NJ : John Wiley & Sons, 2007- |
| مستخلص: | Late Jurassic rhynchocephalians from the Solnhofen Archipelago have been known for almost two centuries. The number of specimens and taxa is constantly increasing, but little is known about the ontogeny of these animals. The well-documented marine taxon Pleurosaurus is one of such cases. With over 15 described (and many more undescribed) specimens, there were no unambiguous juveniles so far. Some authors have argued that Acrosaurus, another common component of the Solnhofen Archipelago herpetofauna, might represent an early ontogenetic stage of Pleurosaurus, but the lack of proper descriptions for this taxon makes this assignment tentative, at best. Here, we describe the first unambiguous post-hatchling juvenile of Pleurosaurus and tentatively attribute it to Pleurosaurus cf. P. ginsburgi. The new specimen comes from the Lower Tithonian of the Mörnsheim Formation, Germany. This specimen is small, disarticulated, and incomplete, but preserves several of its craniomandibular bones and presacral vertebrae. It shares with Pleurosaurus a set of diagnostic features, such as an elongated and triangular skull, a low anterior flange in its dentition, and an elongated axial skeleton. It can be identified as a juvenile due to the presence of an unworn dentition, well-spaced posteriormost dentary teeth, a large gap between the last teeth and the coronoid process of the dentary, and poorly ossified vertebrae with unfused neural arches. Acrosaurus shares many anatomical features with both this specimen and Pleurosaurus, which could indicate that the two genera are indeed synonyms. The early ontogenetic stage inferred for the new Pleurosaurus specimen argues for an even earlier ontogenetic placement for specimens referred to Acrosaurus, the latter possibly pertaining to hatchlings. (© 2024 American Association for Anatomy.) |
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| معلومات مُعتمدة: | RA 1012/28-1 DFG (10.13039/501100001659 - Deutsche Forschungsgemeinschaft); Alexander von Humboldt Foundation; 2021 BP 00038 Secretaria d'Universitats i Recerca of the Departament de Recerca i Universitats, Generalitat de Catalunya; CERCA Programme/Generalitat de Catalunya; 2021 SGR 00620 Agència de Gestió d'Ajuts Universitaris i de Recerca of the Generalitat de Catalunya |
| فهرسة مساهمة: | Keywords: Jurassic; Mesozoic; Pleurosauridae; Pleurosaurus; Sphenodontia |
| تواريخ الأحداث: | Date Created: 20240723 Latest Revision: 20240723 |
| رمز التحديث: | 20240723 |
| DOI: | 10.1002/ar.25545 |
| PMID: | 39039747 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1932-8494 |
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| DOI: | 10.1002/ar.25545 |