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Ectoconodon montanensis

Osteichthyes - Stagodontidae

Taxonomy
Ectoconodon montanensis was named by Simpson (1927). Its type specimen is AMNH 14406, a tooth (isolated left upper molar), and it is a 3D body fossil. Its type locality is Crooked Creek, which is in a Maastrichtian terrestrial horizon in the Hell Creek Formation of Montana.

It was synonymized subjectively with Ectoconodon petersoni by Simpson (1929); it was considered a nomen dubium by Clemens (1966).

Synonymy list
YearName and author
1927Ectoconodon montanensis Simpson

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
RankNameAuthor
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
Marsupialiformes
familyStagodontidaeMarsh 1889
genusEctoconodon
speciesmontanensis

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.

Ectoconodon montanensis Simpson 1927
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialf
Locomotion: actively mobilec
Life habit: aquaticg
Diet: durophageg
Reproduction: viviparoussubc
Created: 2005-09-07 09:57:38
Modified: 2011-04-27 19:55:28
Source: g = genus, f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Fox and Naylor 1995, Carroll 1988, Clemens 1979, Lillegraven 1979

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Maastrichtian72.2 - 66.0USA (Montana) Ectoconodon montanensis (type locality: 119007)