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The history, importance and anatomy of the specimen that validated the giant Purussaurus brasiliensis Barbosa-Rodrigues 1892 (Crocodylia: Caimaninae).
Souza, Lucy G DE; Bandeira, Kamila L N; Pêgas, Rodrigo V; Brum, Arthur S; Machado, Rodrigo; Guilherme, Edson; Loboda, Thiago S; Souza-Filho, Jonas P DE.
Afiliação
  • Souza LG; Museu da Amazônia (MUSA), Avenida Margarita, 6305, Jorge Teixeira, 10795-265 Manaus, AM, Brazil.
  • Bandeira KLN; Universidade Federal do Rio de Janeiro, Laboratório de Sistemática e Tafonomia de Vertebrados Fósseis, Departamento de Geologia e Paleontologia, Museu Nacional, Quinta da Boa Vista, s/n, São Cristóvão, 20940-040 Rio de Janeiro, RJ, Brazil.
  • Pêgas RV; Universidade Federal do ABC, Laboratório de Paleontologia de Vertebrados e Comportamento Animal, Alameda da Universidade, s/n, Anchieta, 09606-045 São Bernardo do Campo, SP, Brazil.
  • Brum AS; Universidade Federal do Rio de Janeiro, Laboratório de Sistemática e Tafonomia de Vertebrados Fósseis, Departamento de Geologia e Paleontologia, Museu Nacional, Quinta da Boa Vista, s/n, São Cristóvão, 20940-040 Rio de Janeiro, RJ, Brazil.
  • Machado R; CPRM, Museu de Ciências da Terra, Av. Pasteur, 404, Urca, 22290-240 Rio de Janeiro, RJ, Brazil.
  • Guilherme E; Universidade Federal do Acre, Laboratório de Pesquisas Paleontológicas, Rodovia BR 364, Km 04, Distrito Industrial, 69915-900 Rio Branco, AC, Brazil.
  • Loboda TS; Universidade Federal do Acre, Laboratório de Pesquisas Paleontológicas, Rodovia BR 364, Km 04, Distrito Industrial, 69915-900 Rio Branco, AC, Brazil.
  • Souza-Filho JP; Universidade Federal do Acre, Laboratório de Pesquisas Paleontológicas, Rodovia BR 364, Km 04, Distrito Industrial, 69915-900 Rio Branco, AC, Brazil.
An Acad Bras Cienc ; 93(suppl 2): e20200369, 2021.
Article em En | MEDLINE | ID: mdl-34161448
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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Répteis / Fósseis Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: An Acad Bras Cienc Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Répteis / Fósseis Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: An Acad Bras Cienc Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil