The history, importance and anatomy of the specimen that validated the giant Purussaurus brasiliensis Barbosa-Rodrigues 1892 (Crocodylia: Caimaninae)
| العنوان: | The history, importance and anatomy of the specimen that validated the giant Purussaurus brasiliensis Barbosa-Rodrigues 1892 (Crocodylia: Caimaninae) |
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| المؤلفون: | Rodrigo V. Pêgas, Lucy G. De Souza, Thiago Silva Loboda, Rodrigo Machado, Kamila L. N. Bandeira, Arthur S. Brum, Edson Guilherme, Jonas P. De Souza-Filho |
| المصدر: | Anais da Academia Brasileira de Ciências, Vol 93, Iss suppl 2 (2021) Anais da Academia Brasileira de Ciências, Volume: 93 Supplement 2, Article number: e20200369, Published: 16 JUN 2021 Anais da Academia Brasileira de Ciências v.93 suppl.2 2021 Anais da Academia Brasileira de Ciências Academia Brasileira de Ciências (ABC) instacron:ABC |
| بيانات النشر: | Academia Brasileira de Ciências, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, 010506 paleontology, Science, Llewellyn Ivor Price, 010603 evolutionary biology, 01 natural sciences, Brevirostris, Alligatoroidea, Paleontology, Genus, Animals, Amazon, Medial surface, 0105 earth and related environmental sciences, Synapomorphy, Multidisciplinary, biology, Purussaurus, Fossils, Holotype, Reptiles, biology.organism_classification, Solimões Formation, Geography, Diogenes de Almeida Campos, Type specimen, Cenozoic, Brazil |
| الوصف: | The Solimões Formation is a southwest geological unit of the Brazilian Amazon, being well-known for the Cenozoic giant eusuchian fossils. Among the eight species of Crocodylia described for this formation, the alligatoroid Purussaurus brasiliensis is the best known worldwide due to its enormous size. The holotype was described in 1892 by Barbosa-Rodrigues, composed by a right hemimandible. Later, two other species were assigned to the genus, but the loss of the type specimen brought a series of doubts and discussions about genus and species validity. Here, we provide a historical reconstruction of the genus Purussaurus, especially with a new description of the specimen DGM 527-R, which was first described by L. I. Price. We also provide a review of Purussaurus brasiliensis as a valid species, highlighting the importance of the paleontologist Diogenes de Almeida Campos to the preservation, study availability and divulgation of the specimen. From the six mandibular features discussed, at least two are putative synapomorphies for the genus: the false ziphodont teeth and the thinning of the medial surface of the mandible posterior to the fourteen alveoli, while the lateral surface become laterally expanded from ninth alveoli to behind. The review of the other species of the genus was aggravated due to little sampling of photos and low quality of those contributions. Finally, the curatorial efforts initiated by Price and kept for decades by Campos turned possible the revision of DGM 527-R, an important specimen for understanding the paleobiology and evolution of the genus, and, consequently P. brasiliensis. Such importance was recognized here scientifically and by Campos when considered this specimen as the center-piece of the exhibition in honor of the centenary anniversary of Price. |
| وصف الملف: | text/html |
| اللغة: | English |
| تدمد: | 1678-2690 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4d1a1bcfbbf0d4bffbaad44dbe38703 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652021000401207&tlng=en |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....c4d1a1bcfbbf0d4bffbaad44dbe38703 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16782690 |
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