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Lambdoceras siouxensis

Mammalia - Protoceratidae

Taxonomy
Synthetoceras siouxensis was named by Frick (1937) [subgenus Prosynthetoceras]. Its type locality is Observation Quarry, which is in a Barstovian terrestrial horizon in Nebraska.

It was recombined as Prosynthetoceras siouxensis by Patton (1967); it was recombined as Lambdoceras siouxensis by Tedford et al. (1987), Prothero (1998).

Synonymy list
YearName and author
1937Synthetoceras siouxensis Frick
1967Prosynthetoceras siouxensis Patton
1987Lambdoceras siouxensis Tedford et al.
1998Lambdoceras siouxensis 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
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Ruminantiamorpha
familyProtoceratidae
subfamilySynthetoceratinaeFrick 1937
tribeSynthetoceratini
genusLambdoceras
speciessiouxensis()

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.

†Lambdoceras siouxensis Frick 1937
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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: browserf
Reproduction: viviparoussubc
Created: 2005-08-31 14:39:46
Modified: 2009-01-07 18:24:42
Source: f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Nowak 1999, Prothero 1998, Lillegraven 1979, Hendy et al. 2009, Carroll 1988

Age range: Early/Lower Barstovian or 16.30000 to 12.50000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Barstovian16.3 - 12.5USA (Nebraska) Neotragocerus improvisus (17983) Prosynthetoceras siouxensis (17905 type locality: 17976 17985 18011 18019)