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Leptonysson basiliscus

Mammalia - Pantolestidae

Taxonomy
Leptonysson basiliscus was named by Van Valen (1967). Its type specimen is AMNH 35295, a mandible, and it is a 3D body fossil. Its type locality is Gidley Quarry, which is in a Torrejonian terrestrial horizon in the Fort Union Formation of Montana. It is the type species of Leptonysson.

Synonymy list
YearName and author
1967Leptonysson basiliscus Van Valen

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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
RankNameAuthor
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Eulipotyphla
superfamilyPantolestoidae(Cope 1887)
familyPantolestidaeCope 1884
genusLeptonysson
speciesbasiliscus

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.

†Leptonysson basiliscus Van Valen 1967
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: freshwater, terrestrialf
Locomotion: actively mobilec
Life habit: amphibiousf
Diet: piscivoref
Diet 2: durophagef
Reproduction: viviparousf
Created: 2005-08-24 13:16:47
Modified: 2005-08-24 15:16:47
Source: f = family, c = class, subp = subphylum
References: Hendy et al. 2009, Ji et al. 2002, Carroll 1988

Age range: Torrejonian or 63.80000 to 60.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Torrejonian63.8 - 60.9USA (Montana) Leptonysson basiliscus (type locality: 14906)