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Helohyus plicodon

Mammalia - Helohyidae

Taxonomy
Helohyus plicodon was named by Marsh (1872) [genotype]. It is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming. It is the type species of Helohyus.

Synonyms
Synonymy list
YearName and author
1872Helohyus plicodon Marsh p. 207
1872Thinotherium validum Marsh p. 208
1894Helohyus plicodon Marsh p. 264
1902Helohyus plicodon Hay p. 650
1902Helohyus validus Hay p. 650
1976Helohyus validus Gazin
2007Helohyus plicodon Foss p. 86

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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
RankNameAuthor
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
superfamilyDichobunoideaGill 1872
familyHelohyidae
genusHelohyus
speciesplicodon

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.

†Helohyus plicodon Marsh 1872
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Invalid names: Thinotherium validum Marsh 1872 [synonym]
Diagnosis
No diagnoses are available