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Pakicetus calcis
Taxonomy
Pakicetus calcis was named by Cooper et al. (2009). Its type specimen is H-GSP 96334, a partial skull (palate fragment with left M2-3, right M1-2), and it is a 3D body fossil. Its type locality is Shepherd's Lake, which is in a Lutetian coastal limestone in the Kuldana Formation of Pakistan.
Synonymy list
Year | Name and author |
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2009 | Pakicetus calcis Cooper et al. p. 1292 figs. Figs. 2, 3 |
2017 | Pakicetus calcis Gingerich et al. figs. Table 1 |
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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.
†Pakicetus calcis Cooper et al. 2009
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Diagnosis
Reference | Diagnosis | |
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L. N. Cooper et al. 2009 | Metacone and paracone labial surfaces tall; deep vertical lingual groove between paracone and metacone of M2, but not M3; p4 anteroposteriorly long, strong posterior reentrant groove, long basal projections. Differs from Pakicetus attocki (H-GSP 18470) in: M3 greater in height along the labial surface, trigon basin narrower labiolingually, protocone small, short, con- ical. Differs from Pakicetus inachus (GSP-UM 85) in: M3 greater labial height, trigon basin narrow labiolingually and shallower. Differs from Pakicetus chittas (H-GSP 97254) in: p4 lacks hypo- conid, smaller anterior basal extension. |