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Microcetus ambiguus

Mammalia - Artiodactyla

Taxonomy
Phoca ambigua was named by Meyer (1840) [Kellogg (1923) states that the type specimen is in the Palaontologische Sammlung at Munich, Germany]. It is a 3D body fossil. Its type locality is Doberg, near Buende (Bunde), which is in a Chattian marine mixed carbonate-siliciclastic in the Doberg Formation of Germany. It is the type species of Microcetus.

It was recombined as Squalodon ambiguus by Trouessart (1898) and Trouessart (1904); it was recombined as Neosqualodon ambiguus by Kellogg (1922); it was considered an invalid subgroup of Squalodontidae by Zittel (1925); it was considered a nomen dubium by Dal Piaz (1916) and Fordyce and de Muizon (2001); it was recombined as Microcetus ambiguus by Kellogg (1923), Rothausen (1961), Sanders et al. (1982) and Tanaka and Fordyce (2015).

Synonymy list
YearName and author
1840Phoca ambigua Meyer p. 1
1898Squalodon ambiguus Trouessart p. 1014
1904Squalodon ambiguus Trouessart p. 755
1922Neosqualodon ambiguus Kellogg p. 126
1923Microcetus ambiguus Kellogg pp. 5-6
1961Microcetus ambiguus Rothausen p. 113
1982Microcetus ambiguus Sanders et al. p. H119
2015Microcetus ambiguus Tanaka and Fordyce

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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
orderArtiodactyla()
Cetacea()
Pelagiceti
Neoceti
Odontoceti()
genusMicrocetus
speciesambiguus()

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
No diagnoses are available