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Cristomylus leptostemma
Taxonomy
Cristomylus leptostemma was named by Wynd et al. (2020). Its type specimen is UWBM 111225, a tooth, and it is a 3D body fossil. Its type locality is Celeste's Magnificent Microsite, which is in a Lancian crevasse splay sandstone in the Hell Creek Formation of Montana.
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Cristomylus leptostemma Wynd 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.
†Cristomylus leptostemma Wynd et al. 2020
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. M. Wynd et al. 2020 | Species of Cristomylus differing from all other species of the genus in possessing the following combination of character states: occlusal surface of crown with a more prominently raised transverse crest; transverse crest sometimes bordered by a moderately deep furrow; occasional presence of weak to moderately developed occlusal crenulations on both the lingual and labial sides of the transverse crest; when present, crenulations restricted to the occlusal surface of the crown; crown lateral faces outwardly rounded apicobasally, with absent or poorly developed flattened facets; crown angles rounded; root consistently thicker and up to twice as thick as the crown. |
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Wagner 2023, Carroll 1988, Hendy et al. 2009 | |||||