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Lycopsis longirostrus

Mammalia - Sparassodonta

Taxonomy
Lycopsis longirostrus was named by Marshall (1977) [UCMP 38061, right half of skull with C-M4, right dentary with root of C, P1-M4 complete, and greater part of articulated skeleton. UCMP loc V4527]. It is considered to be a form taxon. Its type specimen is UCMP 38061, a partial skeleton (Upper P1), and it is a 3D body fossil.

Synonymy list
YearName and author
1977Lycopsis longirostrus Marshall
1979Lycopsis longirostrus Marshall

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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
Synapsida()
Therapsida()
RankNameAuthor
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes(Rowe 1988)
Trechnotheria
Cladotheria
Boreosphenida()
subclassTheria
subclassMetatheria()
orderSparassodonta()
superfamilyBorhyaenoideaAmeghino 1894
genusLycopsis
specieslongirostrus

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
ReferenceDiagnosis
L. G. Marshall 1977Differs from L. torresi in being larger in size; in M4 being narrower than M3; in P2 being larger than P3; and in the ventral border of the mandibular ramus being straight. In addition, a paracingulum occurs on M1-3; hypoconid is larger than hypoconulid or entoconid on M1-2; skull is dolicocephalic; petrosal lacks a subarcuate fossa, pars mastoidea, and tympanic process; tympanic process of alisphenoid is lacking; no evidence of an ossified auditory bulla; foramen ovale
small; foramen lacerum medium, carotid canal and transverse canal all very small.