New anuran material from Deseadan beds of Scarritt Pocket, Chubut Province, and the supposed presence of palearctic bufonids in the Oligocene of Patagonia.

Citation
Am. Baez et Jc. Fernicola, New anuran material from Deseadan beds of Scarritt Pocket, Chubut Province, and the supposed presence of palearctic bufonids in the Oligocene of Patagonia., AMEGHINIANA, 36(1), 1999, pp. 23-35
Citations number
54
Categorie Soggetti
Earth Sciences
Journal title
AMEGHINIANA
ISSN journal
00027014 → ACNP
Volume
36
Issue
1
Year of publication
1999
Pages
23 - 35
Database
ISI
SICI code
0002-7014(1999)36:1<23:NAMFDB>2.0.ZU;2-G
Abstract
In 1949 Schaeffer described several anuran taxa based on remains from Desea dan beds of the western part of the meseta Canquel in central Patagonia. Am ong those taxa is the extinct neobatrachian Neoprocoela I dentata Schaeffer , the evolutionary relationships of which are still controversial. It was s uggested that this species is related to the Bufo calamita Laurenti species group, which has a Palearctic distribution at present. Subsequently, it wa s claimed that additional material collected from the same beds and localit y confirmed the presence of the B. calamita group in Patagonia. The specime n on which this latter statement apparently was based was prepared and is d escribed herein. Comparisons of the preserved elements neither support refe rral to Neoprocoela, nor their bufonid affinities; instead, the squamosals, vertebral column, humeri, and ilia resemble those of telmatobine "leptodac tylids".