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Limnenetes platyceps

Mammalia - Merycoidodontidae

Taxonomy
Limnenetes platyceps was named by Douglass (1902) [genotype]. Its type specimen is CM 701, a partial skull (Partial skull with P3-M3 (all br. with exception of P4)), and it is a 3D body fossil. Its type locality is Thompson Creek, which is in a Chadronian terrestrial claystone in Montana.

It was recombined as Leptauchenia platyceps by Lander (1998).

Synonymy list
YearName and author
1902Limnenetes platyceps Douglass p. 260
1924Limnenetes platyceps Loomis p. 371 figs. Plate LII, figs. 1-3; Plate LIII, figs. 2-7.
1937Limnenetes platyceps Thorpe p. 44 figs. Fig. 4; PL I, figs. 9-11
1940Limnenetes platyceps Scott p. 690
1956Limnenetes platyceps Schultz and Falkenbach p. 462 fig. 12
1998Leptauchenia platyceps Lander
2001Limnenetes platyceps Tabrum and Nichols
2007Limnenetes platyceps Stevens and Stevens p. 158

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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()
familyMerycoidodontidae
subfamilyLeptaucheniinaeSchultz and Falkenbach 1940
genusLimnenetes
speciesplatyceps

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.

†Limnenetes platyceps Douglass 1902
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Diagnosis
ReferenceDiagnosis
C. B. Schultz and C. H. Falkenbach 1956SKULL: Small, somewhat more robust than examples of Oreonetes anceps, approaching size of smaller examples of Miniochoerus (Paraminiochoerus) gracilis; hyoidal groove on bulla absent (present in O. anceps) ; distance from posterior border of M3 to postglenoid process greater than in O. anceps.
MANDIBLE: Approximate size of those of O. anceps, smaller than in example of ?L. spec. undet.
DENTITION: Length of series slightly less than in O. anceps,· premolars moderately large. (See discussion under listings, p. 463.)
LIMBS: Larger and more robust than in examples of Bathygenys alpha, approximately equal in length but somewhat heavier than in examples of M. (P.) gracilis. (Known from tentatively referred specimens only, see discussion, p. 463.)
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: herbivoref
Reproduction: viviparoussubc
Created: 2005-08-31 14:37:21
Modified: 2005-08-31 16:37:21
Source: f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Nowak 1999, Lander 1998, Hendy et al. 2009, Carroll 1988

Age range: Chadronian or 37.20000 to 33.90000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Chadronian37.2 - 33.9USA (Texas) Limnenetes platyceps (16888 16890)
Chadronian37.2 - 33.9USA (Montana) Limnenetes platyceps (type locality: 17028) Limnenetes sp. (16990)
Early/Lower Chadronian37.2 - 33.9USA (Montana) Limnenetes platyceps (27245)