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Uluops uluops
Taxonomy
Uluops uluops was named by Carpenter and Bakker (1990). Its type specimen is CPS 100, a skull, and it is a 3D body fossil. Its type locality is Main Breakfast Bench Quarry, which is in a Tithonian deltaic sandstone/mudstone in the Morrison Formation of Wyoming.
Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Uluops uluops Carpenter and Bakker pp. 3-4 |
| 2019 | Uluops uluops Joyce and Anquetin |
| 2021 | Uluops uluops Rollot 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.
†Uluops uluops Carpenter and Bakker 1990
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. G. Joyce and J. Anquetin 2019 | Uluops uluops can be diagnosed as a paracryptodire by the full list of cranial characters listed for that clade above. Uluops uluops can readily be differentiated from Dorsetochelys typocardium, Glyptops ornatus, and Pleurosternon bullockii by having a notably short and high skull, from Compsemys victa by lacking an expanded secondary palate and a median tomial hook, and from baenids by lacking accessory triturating ridges and expanded prefrontal lappets. | |
| Y. Rollot et al. 2021 | Uluops uluops can be diagnosed as a pleurosternid by the presence of a jugal that does not extend deeply ventrally, a plate-like supraoccipital exposure on the skull roof between the parietals, an anteriorly convex nasal– frontal suture, anterior tubercula basioccipitale on the parabasisphenoid, and the exclusion of the exoccipitals from the articular surface of the occipital condyle. Uluops uluops is distinguished from all other pleurosternids by the following combination of features: a reduced lingual ridge anteriorly, a foramen palatinum posterius entirely formed by the palatine, a midline contact of the pterygoids of about 10–40% of their length, a length between orbit and cheek emargination equal to the diameter of the orbit, a maximum combined width of the parietals greater than their length, the presence of a canalis caroticus lateralis, a raised ridge on the dorsal surface of the paroccipital process, and anterior abducens nerve foramina that are entirely formed by the pterygoid. |