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Chelonoidis petrocellii
Discussion
Etymology. petrocellii, honouring Jorge Luis Petrocelli, outstanding local scientist that greatly contributed to the knowledge of regional paleontology and archaeology.
Taxonomy
Chelonoidis petrocellii was named by Agnolin (2021). Its type specimen is MCA 2024, a partial skeleton (partial anterior half of carapace and plastron, 3 incomplete cervical vertebrae, and right incomplete pectoral girdle), and it is a 3D body fossil. Its type locality is Arroyo Frías, which is in a Pleistocene terrestrial sandstone in the Buenos Aires Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Chelonoidis petrocellii Agnolin |
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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.
†Chelonoidis petrocellii Agnolin 2021
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. L. Agnolin 2021 | Small-sized testudinid (35 cm of total carapace length) with thickened shell plates (more than 1 cm thick in nuchal and peripheral plates) and the following combination of characters: thickened epiplastron with anteriorly extended epiplastral lobes, strong dorsal epiplastral lip overhanging a deep gular pocket, enlarged entoplastron (not preserved) that contacts gular scutes, nuchal plate as long as wide showing its transverse width subequal to its anteroposterior length, strongly posteriorly convergent posterolateral margins, reduced nuchal notch, first marginal scutes in wide contact, and first peripheral plate anteromedially oriented and strongly thickened |
Measurements
No measurements are available
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| Source: f = family, c = class, subp = subphylum | |||||
| References: Ernst and Barbour 1989, Carroll 1988, Hendy et al. 2009 | |||||
Age range: Middle Pleistocene or 0.77400 to 0.12900 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Pleistocene | Argentina (Buenos Aires) | Chelonoidis petrocellii (type locality: 223987) |