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First fossil frog from Antarctica: Implications for Eocene high latitude climate conditions and Gondwanan cosmopolitanism of Australobatrachia
(Nature, 2020-04)
Cenozoic ectothermic continental tetrapods (amphibians and reptiles) have not been documented previously from Antarctica, in contrast to all other continents. Here we report a fossil ilium and an ornamented skull bone that ...
Fossil fishes and anurans from the Miocene of Rio Chico and Cerro Zeballos, Chubut province, Argentina
(Academia Brasileira de Ciencias, 2021-09)
The fossil record of freshwater fishes and anurans from the Miocene in Patagonia is relatively patchy, a large number of specimens remaining undescribed. The aim of the present contribution is to describe a fossil association ...
Un “vómito” revelador
(Universidad Nacional del Comahue. Centro Regional Universitario Bariloche, 2020-12)
Rocas sedimentarias expuestas en la localidad paleontológica Punta Peligro, en la costa de Chubut, conservan evidencia fósil de cómo fue la región alrededor de 64 millones de años atrás. Sorprendentemente, estaba cubierta ...
A new species of Telmatobufo (Schmidt 1852) (Anura, Calyptocephalellidae) from a remnant of the Maulino Forest, central Chile
(Universidad de Concepción.Facultad de Ciencias Naturales y Oceanográficas., 2010)
Calyptocephalella (Anura, Australobatrachia) remains from Río Santa Cruz (Early-Middle Miocene, Santa Cruz Formation), Santa Cruz Province, ArgentinaRestos de Calyptocephalella (Anura, Australobatrachia) desde Río Santa Cruz (Mioceno Temprano-Medio, Formación Santa Cruz), Provincia de Santa Cruz, Argentina
(Asociación Paleontológica Argentina, 2019-12)
In this contribution, the first anuran fossils from classical Santacrucian localities of the Río Santa Cruz are described. According to proportions and features recognized in the few skull elements recorded, the remains ...
Exceptional avian pellet from the Paleocene of Patagonia and description of its content: a new species of calyptocephalellid (Neobatrachia) anuran
(Wiley Blackwell Publishing, Inc, 2020-08)
A fossil gastric pellet from the Danian ‘Banco Negro Inferior’ of the Salamanca Formation at Punta Peligro Locality (Chubut, Argentina) and its 3D preserved fossil content is studied herein. The structure of the pellet and ...
In the shadow of dinosaurs: late Cretaceous frogs are distinct components of a widespread tetrapod assemblage across Argentinean and Chilean Patagonia
(Elsevier, 2022-03)
Frogs (Anura) are nowadays common and abundant constituents of terrestrial and freshwater ecosystems near globally and their fossil record shows that they were already important during Cretaceous times. However, their ...
Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians
(Wiley-liss, Div John Wiley & Sons Inc, 2016-02)
Calyptocephalella gayi is one of over 6,000 neobatrachians arranged into two main groups, Hyloides and Ranoides. Phylogenetically, C. gayi is placed in Australobatrachia, a Gondwanan clade that is either the most basal ...
A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina
(Society of Vertebrate Paleontology, 2011-01)
Eocene caldera-lake deposits from Rio Pichileufu have yielded anuran remains in association with a taxonomically diverse flora. The floral evidence suggests that these anurans lived under climatic conditions similar to ...