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Artigo Acesso aberto Produção Nacional
BIBTEX RIS

First turtle from the Ipubi Formation (Early Cretaceous), Santana Group, Araripe Basin, Brazil

2011; Volume: 14; Issue: 1 Linguagem: Inglês

10.4072/rbp.2011.1.06

ISSN

2236-1715

Autores

Gustavo R. Oliveira, Antônio Álamo Feitosa Saraiva, Hélder Silva, José Artur Ferreira Gomes de Andrade, Alexander W. A. Kellner,

Tópico(s)

Turtle Biology and Conservation

Resumo

Gaffney, Campos &Hirayama, 2001 and Euraxemys essweini Gaffney, Tong &Meylan, 2006. Except for A. barretoi, known from both, the Romualdo and Crato formations, all other turtle taxa are restricted to the Romualdo Formation.Fragments of the skull, an incomplete lower jaw and carapace of the first turtle remains from the Ipubi Formation are reported here.This material was collected in the shales above the gypsum layer, close to the contact with the Romualdo Formation (Aptian-Albian).Compared to other turtles from the Santana Group, this specimen is referred to Pelomedusoides, excluding Araripemys and Brasilemys, based on the following characteristics: absence of a cavum pterygoidei, absence of cervical scute, absence of fontanels in the carapace, contact between nuchal and first peripheral, and absence of nuchal emargination.

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