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Acherontemys heckmani
Taxonomy
Acherontemys heckmani was named by Hay (1899). Its type specimen is USNM 4123, a shell, and it is a 3D body fossil. Its type locality is Northwestern Improvement Company No. 4 Mine, which is in an Eocene lacustrine sandstone in the Roslyn Formation of Washington. It is the type species of Acherontemys.
Synonymy list
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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.
†Acherontemys heckmani Hay 1899
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. Vlachos 2018 | Acherontemys heckmani is herein diagnosed as a member of Pan-Emydidae based on the full list of characters listed for that clade above. Acherontemys heckmani differs from all other North American emydids in the presence of wide vertebral scutes that cover more than half of the carapacial width and the crossing of the anterior sulcus of vertebral IV onto neural VI. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Uetz 2005, Kiessling 2004, Carroll 1988, Hendy et al. 2009 | |||||
Age range: Late/Upper Eocene or 37.71000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | USA (Washington) | Acherontemys heckmani (type locality: 185720) |