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Lucashyus coombsae

Mammalia - Tayassuidae

Discussion

"According to Loomis records, it comes from the Harrison Formation [early late Arikareean] near Van Tassel, Wyoming. Does this mean 17853

Taxonomy
Lucashyus coombsae was named by Prothero (2015). Its type specimen is ACM 7035, a skull (nearly complete skull and mandible with complete dentition), and it is a 3D body fossil. Its type locality is Van Tassel (Upper), which is in a Harrisonian terrestrial horizon in Wyoming.

Synonymy list
YearName and author
2015Lucashyus coombsae Prothero p. 248 fig. 15
2021Lucashyus coombsae Prothero p. 13

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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
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
superfamilySuoidea
—Suina(Gray 1868)
familyTayassuidae
subfamilyHesperhyinae
genusLucashyus
speciescoombsae

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.

†Lucashyus coombsae Prothero 2015
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Diagnosis
ReferenceDiagnosis
D. R. Prothero 2015[Same as for genus] (modi ed from Wright, 1991, p. 80) A hesperhyine peccary, as de ned by having a long cancellous anteroventral process of the auditory bulla, a large plesiochoanal fossa, broad posthamular part of the pterygoid, broad pterygoid process of the alisphenoid that joins the palatge at a high angle, and a shallow orbitomaxillary fossa. It is distinct from other hesperhyines in having a large lacrimal tubercle, a U-shaped margin of the plesiochoanal fossa (V-shaped in more derived hesperhyines), and a narrow lingual cingulum of the P3.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: herbivoref
Diet 2: omnivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-23 13:10:33
Source: f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Nowak 1991, Lillegraven 1979, Hendy et al. 2009, Nowak 1999, Carroll 1988

Age range: Harrisonian or 24.80000 to 18.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Harrisonian24.8 - 18.5USA (Wyoming) Lucashyus coombsae (type locality: 17854)