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Bathygenys alpha

Mammalia - Merycoidodontidae

Taxonomy
Bathygenys alpha was named by Douglass (1902) [genotype]. Its type specimen is CM 708, a mandible (Partial right ramus with /c (alv.) - p4 (p1 rt. and p2 alv.)), and it is a 3D body fossil. Its type locality is Pipestone Springs, which is in a Chadronian terrestrial claystone in the Renova Formation of Montana.

Subspecies
B. hedlundae

Synonyms
Synonymy list
YearName and author
1902Bathygenys alpha Douglass p. 258
1937Bathygenys alpha Thorpe p. 41
1940Bathygenys alpha Scott p. 712
1956Bathygenys alpha Schultz and Falkenbach p. 465 fig. 12
1968Megabathygenys goorisi Schultz and Falkenbach
1969Bathygenys alfa Ferrusquia-Villafranca
2007Bathygenys alpha 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
subfamilyOreonetinae
genusBathygenys
speciesalpha

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.

†Bathygenys alpha Douglass 1902
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Invalid names: Megabathygenys goorisi Schultz and Falkenbach 1968 [synonym]
†Bathygenys alpha hedlundae Schultz and Falkenbach 1968
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Diagnosis
ReferenceDiagnosis
C. B. Schultz and C. H. Falkenbach 1956SKULL: Very small. (See generic characters.)
MANDIBLE: Postsymphysis from below posterior portion of P3 to anterior portion of P,, symphysis long and narrow, mental foramen double on both sides.
DENTITION: Exceptionally small and light; three lower incisors present (see following discussion).
LIMBS: Smaller and lighter than in the tentatively referred examples of Limnenetes platyceps. (Known only from partial elements.)
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: Carroll 1988, Lander 1998, Hendy et al. 2009, Lillegraven 1979, Nowak 1999

Age range: Chadronian or 37.20000 to 33.90000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Chadronian37.2 - 33.9USA (Montana) Bathygenys alpha (16959 16988 16990 type locality: 17010)
Chadronian37.2 - 33.9Mexico (Chihuahua) Bathygenys alpha (17015)
Chadronian37.2 - 33.9USA (Wyoming) Bathygenys alpha (16920 16962 17045) Megabathygenys goorisi (16964 16987)
Middle Chadronian - Late/Upper Chadronian37.2 - 33.9USA (Colorado) Bathygenys alpha (156988)