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Longirostromeryx wellsi

Mammalia - Moschidae

Taxonomy
Blastomeryx wellsi was named by Matthew (1904) [listed as a species of Blastomeryx by Webb 1998a without mention of Patton]. Its type specimen is AMNH 9823, a mandible (fragmentary ramus), and it is a 3D body fossil. Its type locality is Rosebud Agency Quarry, which is in a Clarendonian/Hemphillian terrestrial horizon in the Ash Hollow Formation of South Dakota.

It was recombined as Longirostromeryx wellsi by Frick (1937), Green (1956), Patton (1969), Webb (1998), Prothero (2007) and Prothero (2008).

Synonyms
Synonymy list
YearName and author
1904Blastomeryx wellsi Matthew p. 125 figs. 18 and 19
1908Blastomeryx wellsi Matthew p. 545
1937Longirostromeryx blicki Frick
1937Longirostromeryx merriami Frick
1937Longirostromeryx serpentis Frick
1937Longirostromeryx wellsi Frick
1956Longirostromeryx wellsi Green
1969Longirostromeryx wellsi Patton
1998Longirostromeryx wellsi Webb
2007Longirostromeryx wellsi Prothero p. 225
2008Longirostromeryx wellsi Prothero

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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
—Mammaliaformes
classMammalia
RankNameAuthor
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Ruminantiamorpha
—Ruminantia(Scopoli 1777)
—Pecora()
familyMoschidae
subfamilyBlastomerycinaeFrick 1937
genusLongirostromeryx
specieswellsi()

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.

†Longirostromeryx wellsi Matthew 1904
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Invalid names: Longirostromeryx blicki Frick 1937 [synonym], Longirostromeryx merriami Frick 1937 [synonym], Longirostromeryx serpentis Frick 1937 [synonym]
Diagnosis
ReferenceDiagnosis
D. R. Prothero 2008Larger Longirostromeryx specimens (m1-3 length = 30-40 mm; p2-4 length = 14-20 mm) with only slightly reduced lower premolars, relatively short diastema compared to L. clarendonensis
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserf
Diet 2: grazerf
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-23 13:15:44
Source: f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Nowak 1999, Lillegraven 1979, Carroll 1988, Nowak 1991, Hendy et al. 2009

Age range: base of the Barstovian to the top of the Clarendonian or 16.30000 to 9.40000 Ma

Collections (28 total)


Time interval Ma Country or state Original ID and collection number
Miocene23.03 - 5.333USA (South Dakota) Longirostromeryx wellsi (18369)
Miocene23.03 - 5.333USA (Texas) Longirostromeryx wellsi (18644)
Barstovian16.3 - 12.5USA (Nebraska) Longirostromeryx blicki (18164 18275 18442)
Barstovian16.3 - 12.5USA (New Mexico) Longirostromeryx blicki (19535) Longirostromeryx sp. (19287) Longirostromeryx wellsi (19519)
Barstovian16.3 - 12.5USA (Texas) Blastomeryx sp. (18628)
Barstovian - Clarendonian16.3 - 9.4USA (Nebraska) Longirostromeryx wellsi (18077)
Clarendonian12.5 - 9.4USA (South Dakota) Longirostromeryx wellsi (18063 18200 18344 18491)
Clarendonian12.5 - 9.4USA (Nebraska) Longirostromeryx merriami (18042 18204 18334 18336) Longirostromeryx serpentis (18222) Longirostromeryx wellsi (18092 18217 18233 18273 18300 18324 188779)
Late/Upper Clarendonian12.5 - 9.4USA (Nebraska) Longirostromeryx merriami (18066)
Clarendonian - Hemphillian12.5 - 4.9USA (South Dakota) Longirostromeryx wellsi (type locality: 18352)