Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: ParaHoxozoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Olfactores
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Batrachomorpha
Classis: Amphibia
Subclassis: Lissamphibia
Superordo: Batrachia
Cladus: Salientia
Ordo: Anura
Familia: Leiopelmatidae
Genus: †Vieraella
Species (1): V. herbsti
Name
Vieraella Reig, 1961
References
Estes, R., & 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, Columbia.
Links
BHL bibliography
Vieraella – Taxon details on Encyclopedia of Life (EOL).
Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Vieraella.
ION
Vieraella is an extinct genus of frogs from the Lower Jurassic (Early Pliensbachian to Toarcian) Roca Blanca Formation of Argentina, and one of the oldest true frogs known. This genus is known by a single exceptionally 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.[3]
Description
Despite living around 188 million years ago, Vieraella was anatomically 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 known, such as Triadobatrachus, these possessed many primitive characteristics, and cannot be said to be "true" frogs.[4]
References
Navarrete, C.; Gianni, G.; Christiansen, R.; Kamerbeek, Y.; Periale, S.; Folguera, A. (2019). "Jurassic intraplate contraction of southern Patagonia: the El Tranquilo anticline area, Deseado Massif". Journal of South American Earth Sciences. 94 (3): 102–224. Bibcode:2019JSAES..9402224N. doi:10.1016/j.jsames.2019.102224. S2CID 197571957. Retrieved 30 March 2022.
Reig, O. A. (1961). "Noticia sobre un nuevo anuro fósil del Jurásico de Santa Cruz (Patagonia)". Ameghiniana. 2 (5): 73–78. Retrieved 30 March 2022.
Casamiquela, R. (1965). "Nuevo material de Vieraella HerbstII ReIg. Reinterpretación de la ranita liasica de la Patagonia y consideraciones sobre filogenia y sistemática de los anuros". Revista del Museo de La Plata. 4 (27): 265–317. Retrieved 30 March 2022.
Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 56. ISBN 1-84028-152-9.
Further reading
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, Columbia.
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