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Lambdoceras hessei

Mammalia - Artiodactyla - 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()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
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.

Diagnosis
No diagnoses are available