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Austrocheirus isasii
Taxonomy
Austrocheirus isasii was named by Ezcurra et al. (2010). Its type specimen is MPM-PV 10003, a set of postcrania, and it is a 3D body fossil. Its type locality is Hoyada Arroyo Seco, which is in a Campanian fluvial mudstone/sandstone in the Cerro Fortaleza Formation of Argentina. It is the type species of Austrocheirus.
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Austrocheirus isasii Ezcurra et al. p. 3 figs. 2A, D, H, J; 1-7, 9C, F |
| 2011 | Austrocheirus isasii Egerton et al. p. 10 |
| 2011 | Austrocheirus isasii Ruiz et al. p. 1276 |
| 2012 | Austrocheirus isasii Burch and Carrano p. 15 |
| 2013 | Austrocheirus isasii Novas et al. p. 184 |
| 2023 | Austrocheirus isasii Agnolín et al. |
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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.
†Austrocheirus isasii Ezcurra et al. 2010
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. D. Ezcurra et al. 2010 | Medium-sized theropod (7–8 meters in total length; Table 2) diagnosed by the following combination of characters (autapomorphies indicated by an asterisk): (1) metacarpal III with a dorsoventrally tapering shaft towards its proximal end* and (2) posteriorly displaced collateral tendon fossae located at the same level of the proximal end of distal condyles*; (3) tibia with a slightly convex posterior surface at the distal end; (4) metatarsal III with a very well-developed ventral scar for the insertion of the M. gastrocnemius; (5) pedal phalanges with a conspicuous longitudinal crest delimitating the dorsal margin of the distal collateral tendon fossae*. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||