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Sespia heterodon

Mammalia - Merycoidodontidae

Taxonomy
Cyclopidius heterodon was named by Cope (1877). It is a 3D body fossil. Its type locality is Fort Logan, which is in an Arikareean terrestrial horizon in Montana.

It was recombined as Pithecistes heterodon by Cope (1884); it was synonymized subjectively with Cyclopidius simus by Loomis (1925); it was synonymized subjectively with Leptauchenia decora by CoBabe (1996); it was synonymized subjectively with Sespia nitida by Lander (1998); it was recombined as Sespia heterodon by Schultz and Falkenbach (1968), Hoffman and Prothero (2004) and Stevens and Stevens (2007).

Synonymy list
YearName and author
1877Cyclopidius heterodon Cope p. 222
1884Pithecistes heterodon Cope p. 559
1902Cyclopidius heterodon Hay p. 670
1935Cyclopidius heterodon Schlaikjer
1937Cyclopidius heterodon Thorpe p. 249
1968Sespia heterodon Schultz and Falkenbach
2004Sespia heterodon Hoffman and Prothero p. 161
2007Sespia heterodon 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
genusSespia()
speciesheterodon()

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.

Sespia heterodon Cope 1877
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Diagnosis
No diagnoses are available
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: Hendy et al. 2009, Lander 1998, Nowak 1999, Carroll 1988, Lillegraven 1979

Age range: Arikareean or 30.80000 to 20.43000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Arikareean30.8 - 20.43USA (Montana) Cyclopidius heterodon (17509)