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Praekogia

Mammalia - Cetacea - Kogiidae

Taxonomy
Praekogia was named by Barnes (1973) [Sepkoski's age data: T Mi-u Sepkoski's reference number: 746]. It was considered monophyletic by Uhen et al. (2008).

It was assigned to Physeteridae by Barnes (1977) and Carroll (1988); to Cetacea by Sepkoski (2002); to Kogiinae by Barnes (1973), Muizon (1990), McKenna and Bell (1997), Kazár (2002) and Collareta et al. (2017); and to Kogiidae by Vidal (1991), Uhen et al. (2008), Velez-Juarbe et al. (2015), Marx et al. (2016) and Berta (2017).

Species

Synonymy list
YearName and author
1973Praekogia Barnes
1977Praekogia Barnes p. 331
1988Praekogia Carroll
1990Praekogia Muizon p. 297
1991Praekogia Vidal p. 5
1997Praekogia McKenna and Bell p. 381
2002Praekogia Kazár p. 163
2002Praekogia Sepkoski
2008Praekogia Uhen et al. p. 574
2015Praekogia Velez-Juarbe et al. p. 15 figs. Fig. 10
2016Praekogia Marx et al. p. 123
2017Praekogia Berta p. 161
2017Praekogia Collareta et al. p. 269 figs. Figure 6

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
RankNameAuthor
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Whippomorpha
orderCetacea
Pelagiceti
Neoceti
suborderOdontoceti
superfamilyPhyseteroidea
familyKogiidae
subfamilyKogiinae
genusPraekogia

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.

G. †Praekogia Barnes 1973
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Praekogia cedrosensis Barnes 1973
Diagnosis
ReferenceDiagnosis
M. D. Uhen et al. 2008Praekogia differs from the Recent species of Kogia by having dense rather than spongy cranial bone; lower cranial crests; orbit situated anterior to the end of the zygomatic process of the squamosal, not posteriorly within the temporal fossa; small skull, slightly more than one half the size of that of adult Kogia breviceps; cranium less foreshortened than in Kogia; lateral maxillary crests high and with sharp margins, not rounded and inflated, forming nearly straight lateral margins of the supracranial basin; left premaxilla wraps around the posterior side of the left naris and contributes to a sagittal facial crest in the supracranial basin that is less developed than in Kogia; the right margin of the right premaxilla does not form a Kogia-like crest but has a deep fossa; temporal fossa is large; lateral surface of jugal is very slender (Barnes, 1973).