INVESTIGADORES
ZURITA Alfredo Eduardo
artículos
Título:
TESTUDINOIDEA FITZINGER (TESTUDINES: CRYPTODIRA) DE LA FORMACIÓN TOROPÍ/YUPOÍ (C. 58-28 KA) EN LA PROVINCIA DE CORRIENTES, ARGENTINA: TAXONOMÍA Y ASPECTOS PALEOAMBIENTALES RELACIONADOS
Autor/es:
ZACARIAS, G.; DE LA FUENTE, M. S; ZURITA, A. E
Revista:
REVISTA BRASILEIRA DE PALEONTOLOGIA
Editorial:
SOC BRASILEIRA PALEONTOLOGIA
Referencias:
Lugar: Porto Alegre; Año: 2014 p. 389 - 404
ISSN:
1519-7530
Resumen:
Testudinoids from Toropí/Yupoí Formation (c. 58-28 ka) include testudinids and emydids. The remains were recovered from Arroyo Toropí and Santa Lucia localities (Corrientes Province, north-eastern Argentina). In Arroyo Toropí two specimens of testudinid are known: the holotype of Chelonoidis lutzae (carapace, plastron and remains of the appendicular skeleton), and a partial carapace tentatively referred to this species. New specimens including remains of testudinids (cf. Chelonoidis) and emydids (Trachemys cf. dorbigni) have been also recovered from Santa Lucía. By comparing the global distribution of extant species of giant testudinids (e.g., Chelonoidis nigra, Dipsochelys elephantina, Cylindraspis peltastes) with the climate map of Kottek and collaborators, we observe a congruence among the distribution of these gigant species with the Tropical and Subtropical zones, characterized by warm climate. This suggests a high degree of thermosensitivity for this extant giant tortoises. This, together with the geological and paleontological known data from Toropí/Yupoí Formation, allows us to suggest that the giant Chelonoidis were inhabitants in environments under warm climate conditions. In addition, warm and wet conditions are inferred in Santa Lucía from the record of Trachemys cf. dorbigni.