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Gagadon

Mammalia - Homacodontidae

Taxonomy
Gagadon was named by Stucky and Covert (2014). It is not extant. Its type is Gagadon minimonstrum.

It was assigned to Homacodontidae by Stucky and Covert (2014).

Species
G. minimonstrum (type species)

Synonymy list
YearName and author
2014Gagadon Stucky and Covert

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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
familyHomacodontidaeMarsh 1849
genusGagadon

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. †Gagadon Stucky and Covert 2014
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Gagadon minimonstrum Stucky and Covert 2014
Diagnosis
ReferenceDiagnosis
R. K. Stucky and H. H. Covert 2014Differs from all known North Ameri- can artiodactyls in having the following autapomorphies: (1) very broad cingulids on the labial margin of the lower molars running from the anterior margin of the protoconid to the posterior mar- gin of the hypoconid; (2) strongly developed projecting accessory cusps on the labial cingulid of the lower molars especially on m2 and m3; and (3) a large cusp on the stylar shelf labial to the meta- cone in M2 that is nearly equal in size to the metacone.