Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Pakicetus calcis

Mammalia - Ungulata - Pakicetidae

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
YearName and author
2009Pakicetus calcis Cooper et al. p. 1292 figs. Figs. 2, 3
2017Pakicetus calcis Gingerich et al. figs. Table 1

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
orderUngulata(Linnaeus 1766)
orderArtiodactyla()
Cetacea()
familyPakicetidae()
genusPakicetus
speciescalcis

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.

Diagnosis
ReferenceDiagnosis
L. N. Cooper et al. 2009Metacone 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.