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Metamynodon

Mammalia - Perissodactyla - Amynodontidae

Synonyms
Synonymy list
YearName and author
1887Metamynodon Scott and Osborn p. 165 fig. 7
1942Cadurcopsis Kretzoi
1960Metamynodon Wood p. 100
1986Metamynodon Wall and Manning p. 911
1988Metamynodon Carroll
1998Metamynodon Wall p. 585
2017Metamynodon Averianov et al.

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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()
RankNameAuthor
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
orderPerissodactyla()
Tapiromorpha(Haeckel 1873)
Ceratomorpha(Wood 1937)
superfamilyRhinocerotoidea
familyAmynodontidae
tribeMetamynodontini(Kretzoi 1942)
genusMetamynodon

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. B. Scott and H. F. Osborn 1887Dentition I. 3/3, C. 1/1, Pm 3/2, M. 3/3. Upper and lower canines obliquely placed, the latter fitting somewhat internal to the former when the jaw is closed. The first upper premolar wanting; the second, third, and fourth premolars are of the molar pattern. Post-glenoid and post-tympanic processes widely united.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: amphibiousg
Diet: browserg
Created: 2005-08-31 15:06:19
Modified: 2005-08-31 17:06:19
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Wall 1998, Carroll 1988, Hendy et al. 2009, Ji et al. 2002

Age range: base of the Bartonian to the top of the Orellan or 41.30000 to 33.30000 Ma

Collections (22 total)


Time interval Ma Country or state Original ID and collection number
Middle Eocene48.6 - 37.2China (Yunnan) M. sp. (36668)
Uintan46.2 - 40.4USA (Texas) Amynodontidae indet. (16534 16537) M. mckinneyi (16599 16633)
Bartonian41.3 - 38.0Myanmar M. birmanicus (41158 41163 41207) M. birmanicus, M. cotteri (41331) M. cotteri (41104 41456)
Duchesnean40.4 - 37.2USA (Texas) M. sp. (16828 16835)
Chadronian37.2 - 33.9USA (South Dakota) M. chadronensis (17012)
Early/Lower Chadronian37.2 - 33.9USA (Wyoming) M. planifrons (16906)
Late/Upper Eocene37.2 - 33.9China (Yunnan) M. sp. (182580)
Orellan33.9 - 33.3USA (Wyoming) M. sp. (17064)
Orellan33.9 - 33.3USA (South Dakota) M. planifrons (17141) M. sp. (17295)
Orellan33.9 - 33.3USA (Mississippi) M. planifrons (17071)
Orellan33.9 - 33.3USA (North Dakota) M. sp. (17101)
Oligocene33.9 - 23.03USA (Mississippi) M. planifrons (163855)