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Sespia ultima

Mammalia - Merycoidodontidae

Taxonomy
Sespia ultima was named by Schultz and Falkenbach (1968). Its type locality is Big Muddy Creek, which is in an Arikareean terrestrial horizon in Wyoming.

It was synonymized subjectively with Sespia nitida by CoBabe (1996) and Lander (1998).

Synonyms
Synonymy list
YearName and author
1968Megasespia middleswarti Schultz and Falkenbach
1968Sespia ultima Schultz and Falkenbach
2004Sespia ultima Hoffman and Prothero p. 160
2007Sespia ultima 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()
speciesultima

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 ultima Schultz and Falkenbach 1968
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Invalid names: Megasespia middleswarti Schultz and Falkenbach 1968 [synonym]
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: Nowak 1999, Lillegraven 1979, Lander 1998, Hendy et al. 2009, Carroll 1988

Age range: base of the Whitneyan to the top of the Geringian or 33.30000 to 26.30000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Whitneyan33.3 - 30.8USA (Nebraska) Megasespia middleswarti (17398)
Geringian30.8 - 26.3USA (Nebraska) Megasespia middleswarti (17474 17591 17712 17721)
Arikareean29.5 - 18.5USA (Wyoming) Megasespia middleswarti (17703) Sespia ultima (type locality: 17472)