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Lambdoceras hessei

Mammalia - Protoceratidae

Taxonomy
Lambdoceras hessei was named by Stirton (1967). Its type specimen is UCMP 32372, an other (maxillary rostral horn), and it is not a trace fossil. Its type locality is Flint Hill North, which is in a Hemingfordian terrestrial horizon in the Batesland Formation of South Dakota. It is the type species of Lambdoceras.

It was recombined as Prosynthetoceras hessei by Patton (1969), Patton and Taylor (1971) and Patton and Taylor (1973).

Synonymy list
YearName and author
1967Lambdoceras hessei Stirton
1969Prosynthetoceras hessei Patton
1971Prosynthetoceras hessei Patton and Taylor
1973Prosynthetoceras hessei Patton and Taylor
1987Lambdoceras hessei Tedford et al.
1998Lambdoceras hessei Prothero
1999Lambdoceras hessei Albright

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
RankNameAuthor
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Ruminantiamorpha
familyProtoceratidae
subfamilySynthetoceratinaeFrick 1937
tribeSynthetoceratini
genusLambdoceras
specieshessei

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 hessei Stirton 1967
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Diagnosis
No diagnoses are available