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Helohyus

Mammalia - Artiodactyla

Synonyms
Synonymy list
YearName and author
1870Thinotherium Cope p. 292
1872Helohyus Marsh
1902Thinotherium Hay p. 661
1914Lophiohyus Sinclair
1977Helohyus Coombs and Coombs p. 292
1988Helohyus Carroll
1997Lophiohyus McKenna and Bell p. 403
2009Helohyus Spaulding et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
RankNameAuthor
Cotylosauria()
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
Cetancodonta
Cetaceamorpha
genusHelohyus

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