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Leptauchenia lullianus

Mammalia - Artiodactyla - Merycoidodontidae

Taxonomy
Cyclopidius lullianus was named by Thorpe (1921). Its type locality is Big Muddy Creek, which is in an Arikareean terrestrial horizon in Wyoming.

It was recombined as Pseudocyclopidius lullianus by Schultz and Falkenbach (1968); it was synonymized subjectively with Leptauchenia major by CoBabe (1996) and Lander (1998); it was recombined as Leptauchenia lullianus by Stevens and Stevens (2007) and Prothero and Sanchez (2008).

Synonyms
Synonymy list
YearName and author
1921Cyclopidius lullianus Thorpe
1940Cyclopidius quadratus Koerner
1968Pseudocyclopidius lullianus Schultz and Falkenbach
1968Pseudocyclopidius quadratus Schultz and Falkenbach
2007Leptauchenia lullianus Stevens and Stevens p. 158
2008Leptauchenia lullianus Prothero and Sanchez

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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()
suborderTylopoda()
superfamilyOreodontoidea
familyMerycoidodontidaeThorpe 1923
subfamilyLeptaucheniinaeSchultz and Falkenbach 1940
genusLeptauchenia
specieslullianus(Thorpe 1921)

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
ReferenceDiagnosis
D. R. Prothero and F. Sanchez 2008Large leptaucheniines (P2-M3 length = 62-71 mm, M1-3 lengths = 42-48 mm, M1-2 lengths = 27-35 mm, and skull lengths = 125-185 mm) with very robust zygomatic arches and larger orbits; snout relatively flattened and shovel-like; malar relatively deep; teeth very hypsodont.