Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Tupaiodon morrisi

Mammalia - Changlelestidae

Taxonomy
Tupaiodon morrisi was named by Matthew and Granger (1924). Its type specimen is AMNH 19134, a maxilla (with part of skull and mandible fragments), and it is a 3D body fossil. It is the type species of Tupaiodon.

Synonymy list
YearName and author
1924Tupaiodon morrisi Matthew and Granger p. 1

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
RankNameAuthor
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
Laurasiatheria
Eulipotyphla
suborderSoricomorphaGregory 1910
familyChanglelestidae
subfamilyTupaiodontinaeButler 1988
genusTupaiodon
speciesmorrisi

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
W. D. Matthew and W. Granger 1924Upper molars and premolars somewhat resembling those of Ptilocercus, bit with larger and more separate hypocones on M1-2. Incisors unknown. Canine and P1-2 small, two-rooted, wkth short stout cusp and rudimentary heel. P3-4 much larger with strong internal cusps, P4 with strong metastyle blade and rudimentary tetartocone. M1-2 sub-quadrate with high, rather angular cusps, metastyle distinct, hypocone more developed and separated than in Ptilocercus, M2 triangular with no metastyle or hypocone, proportioned about as in Ptilocercus. Lower molars with rather short wide trigonid of three angular cusps, prd slighly highest, talonid as wide as trigonid, deeply basined with cusps at posterior angels, not as high as trigonid cusps. Infraorbital foramen abov P2, root of zygoma above M2.
Size about that of the European mole or the short-tailed shrews, C-M3=13 mm