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very similar to modern frogs. For example, its hind legs were adapted for jumping, and the skull already possessed the lattice-like form found in modern species. It was, however, an unusually small frog, measuring only 3 centimetres (1.2 in) in length. Although older frog-like creatures are
268:, and one of the oldest true frogs known. This genus is known by a single excepcionally well preserved specimen, P.V.L. 2188, with at least eight presacrals vertebrae, free ribs, ulna and radius not fused, bony skull with some discoglossid characters.
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Estes, R., and O. A. Reig. 1973. The early fossil record of frogs: a review of the evidence. pp. 11–63 In J. L. Vial (Ed.), Evolutionary
Biology of the Anurans: Contemporary Research on Major Problems. University of Missouri Press,
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395:"Nuevo material de Vieraella HerbstII ReIg. Reinterpretación de la ranita liasica de la Patagonia y consideraciones sobre filogenia y sistemática de los anuros"
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310:"Jurassic intraplate contraction of southern Patagonia: the El Tranquilo anticline area, Deseado Massif"
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Navarrete, C.; Gianni, G.; Christiansen, R.; Kamerbeek, Y.; Periale, S.; Folguera, A. (2019).
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364:"Noticia sobre un nuevo anuro fósil del Jurásico de Santa Cruz (Patagonia)"
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The
Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals
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428:. London: Marshall Editions. p. 56.
314:Journal of South American Earth Sciences
699:Early Jurassic animals of South America
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694:Jurassic amphibians of South America
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637:. You can help Knowledge (XXG) by
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629:This article about a prehistoric
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714:Fossil taxa described in 1963
399:Revista del Museo de La Plata
334:10.1016/j.jsames.2019.102224
734:Prehistoric amphibian stubs
27:Extinct genus of amphibians
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569:This article related to a
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689:Early Jurassic amphibians
140:Scientific classification
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424:Palmer, D., ed. (1999).
393:Casamiquela, R. (1965).
244:is an extinct genus of
719:Frogs of South America
40:Temporal range: Early
729:Jurassic animal stubs
536:Paleobiology Database
262:Roca Blanca Formation
724:Transitional fossils
709:Fossils of Argentina
362:Reig, O. A. (1961).
326:2019JSAES..9402224N
704:Jurassic Argentina
471:Vieraella herbstii
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18:Vieraella herbsti
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495:Wikispecies
368:Ameghiniana
272:Description
232:Reig, 1961
739:Frog stubs
678:Categories
374:(5): 73–78
295:References
501:Vieraella
453:Columbia.
342:197571957
278:Vieraella
266:Argentina
241:Vieraella
220:Species:
212:Vieraella
146:Kingdom:
36:Vieraella
571:Jurassic
486:Q2021524
480:Wikidata
409:30 March
378:30 March
347:30 March
258:Toarcian
250:Jurassic
194:Family:
175:Amphibia
163:Chordata
158:Phylum:
151:Animalia
46:Toarcian
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515:8567121
322:Bibcode
252:(Early
206:Genus:
182:Order:
170:Class:
574:animal
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633:is a
576:is a
338:S2CID
187:Anura
635:stub
631:frog
578:stub
510:GBIF
430:ISBN
411:2022
380:2022
349:2022
280:was
246:frog
60:PreꞒ
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