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Avitabatrachus uliana
Taxonomy
Avitabatrachus uliana was named by Báez et al. (2000). Its type specimen is MUCPv 123, a partial skeleton, and it is a 3D body fossil. Its type locality is El Gigante, which is in a Cenomanian fluvial sandstone in the Candeleros Formation of Argentina. It is the type species of Avitabatrachus.
Entered
by P. Mannion on 2011-09-10
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Avitabatrachus uliana Báez et al. |
| 2024 | Avitabatrachus uliana Báez and Turazzini p. 27 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Avitabatrachus uliana Báez et al. 2000
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. M. Báez et al. 2000 | Moderately small pipimorph frog (sensu Ford and Cannatella, 1993) that shares with Pipidae conch-like squamosals, deeply excavated prootics to form channels for the Eustachian tubes, articulations for the lower jaws at the anterolateral corners of otic capsules and fused sacrum and urostyle; it differs from all pipimorph taxa in having distinct flanges along the posterior halves of the prootics medial to the inner ear region and four posterior presacral vertebrae bearing wide transverse processes that are not strongly directed anteriorly. Differs further from Saltenia and Shelania in the presence of toothed maxillae and rectangular pterygoid otic plates, and from Saltenia also in the fusion of the first two vertebrae. The narrow cultriform process of parasphenoid additionally distinguishes it from pipine genera. | |
| A. M. Báez and G. F. Turazzini 2024 | Revised diagnosis.Moderately small pipimorph frog (sensuFord & Cannatella, 1993) that shares with crown-groupPipidae conch-like squamosals and articulations for the lower jaw at the anterolateral corners of otic capsules; sacrum and urostyle not fused to one another in tadpoles and young juveniles, probably fully fused in grown adults; it differs from all pipimorph taxa in having distinct flanges along the posterior halves of the prootics medial to the inner ear region in adults and from those of crown-group taxa also in the presence of four posterior presacral vertebrae that bear wide and distally acuminate transverse processes that are not strongly directed anteriorly. Differs further from Saltenia and Shelania in the presence of toothed maxillae and rectangular pterygoid otic plates and from Saltenia also in the fusion of the first two vertebrae in postmetamorphs.The narrow cultriform process of parasphenoid in the orbital region additionally distinguishes it from species of Pipa, Hymenochirus, and Pseudhymenochirus. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Kiessling 2004, Uhen 2004, Hendy et al. 2009, Carroll 1988 | |||||
Age range: Early/Lower Cenomanian or 100.50000 to 93.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | Argentina (Río Negro) | Avitabatrachus uliana (type locality: 116638) |