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Egyptemys oregonensis
Taxonomy
Psephophorus oregonensis was named by Packard (1940). Its type specimen is UCMP 124474, skull and is a 3D body fossil. Its type locality is Spencer Creek, which is in a Burdigalian open shallow subtidal mudstone in the Astoria Formation of Oregon.
It was recombined as Egyptemys oregonensis by Wood et al. (1996).
It was recombined as Egyptemys oregonensis by Wood et al. (1996).
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Psephophorus oregonensis Packard |
| 1940 | Psephophorus oregonensis Palmer |
| 1996 | Egyptemys oregonensis Wood 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.
†Egyptemys oregonensis Packard 1940
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. C. Wood et al. 1996 | This species is assigned to Egyptemys on the basis of a referred shell fragment consisting of all or parts of 26 bony ossicles. A low, rounded ridge traverses 5 Iinearly-arranged ossicles. These are of somewhat irregular size and shape. All
of the ridge-bearing ossicles arc wider than long. Insofar as it has been preserved. this shell remnant is virtually indistinguishable from what is known of the carapace of E. eocaenus. The original diagnosis of E. oregonensis is based on a skull which was compared only with Dermochelys from which it clearly differs (Packard,1940). This skull requires further preparation and a redescription, especially with reference to other fossil dermochelyid skulls now available. |
Measurements
No measurements are available
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| Source: f = family, c = class, subp = subphylum | |||||
| References: Kiessling 2004, Uetz 2005, Carroll 1988, Hendy et al. 2009 | |||||
Age range: Burdigalian or 20.45000 to 15.98000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian | USA (Oregon) | Psephophorus oregonensis (type locality: 60339) |