The first Pan-Podocnemididae turtle egg from the Presidente Prudente Formation (Late Cretaceous, Bauru Group), Brazil

Autor(es)

Marsola, Julio C. De A. ^[1] ; Grellet-Tinner, Gerald ^{[2, 3]} ; Montefeltro, Felipe C. ^[4] ; Langer, Max C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, FFCLRP, Lab Paleontol Ribeirao Preto, BR-14040901 Sao Paulo - Brazil

^[2] Orcas Isl Museum, Eastsound, WA 98245 - USA

^[3] Consejo Nacl Invest Cient & Tecn, CRILAR, Dept Geociencias, RA-1033 Buenos Aires, DF - Argentina

^[4] Univ Estadual Paulista, Dept Zool, Rio Claro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Zootaxa; v. 3872, n. 2, p. 187-194, OCT 8 2014.
• Citações Web of Science: 2

Resumo

Pan-Podocnemididae turtles are ubiquitous in Late Cretaceous rocks of the Bauru Group in southeastern Brazil. This group of side-necked turtles is particularly abundant in a turtle-bearing site of the Presidente Prudente Formation known as Tartaruguito. Here, we describe the first turtle egg (LPRP-USP 0052) from the Tartaruguito site. LPRP-USP 0052 is nearly complete but misses a pole and measures 5,1 and 2,9-2,2 centimeters due to its flattened minor axis. The egg morphology and microstructure were analyzed by observations performed with CT, Optic Microscopy, Scanning Electronic Microscopy and Wave Dispersion Energy analyses. The eggshell ranges from 145 to 160 micrometers thick. Considering the matching morphology of the new specimen and its provenance from the stratigraphic horizon that yielded only the podocnemidids Bauruemys and Roxochelys, it is most likely that LPRP-USP 0052 was produced by a podocnemidid turtle. (AU)

• Processo FAPESP: 13/11358-3 - A região ótica dos Crocodyliformes, implicações evolutivas e paleobiológicas
• Beneficiário: Felipe Chinaglia Montefeltro
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 10/14797-0 - Ovos Fósseis de Crocodyliformes do Cretáceo Superior do Grupo Bauru, Regiões de Campina Verde-MG e Presidente Prudente-SP
• Beneficiário: Júlio Cesar de Almeida Marsola
• Modalidade de apoio: Bolsas no Brasil - Mestrado