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Esthonyx acutidens

Mammalia - Esthonychidae

Taxonomy
Esthonyx acutidens was named by Cope (1881).

It was synonymized subjectively with Esthonyx bisulcatus by Stucky and Krishtalka (1983).

Synonymy list
YearName and author
1881Esthonyx acutidens Cope p. 185
1902Esthonyx acutidens Hay p. 715
1953Esthonyx acutidens Gazin pp. 24 - 28 figs. Text figures 6 - 8
1989Esthonyx acutidens Gingerich

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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
—Therapsida()
RankNameAuthor
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Cimolesta()
suborderTillodontia()
familyEsthonychidaeCope 1883
subfamilyEsthonychinaeZittel and Schlosser 1911
genusEsthonyxCope 1874
speciesacutidens

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.

†Esthonyx acutidens Cope 1881
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-31 13:30:51
Modified: 2005-08-31 15:30:51
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Hendy et al. 2009, Ji et al. 2002, Lucas and Schoch 1998, Carroll 1988

Age range: base of the Wasatchian to the top of the Bridgerian or 55.80000 to 46.20000 Ma

Collections (28 total)


Time interval Ma Country or state Original ID and collection number
Lostcabinian55.8 - 50.3USA (Wyoming) Esthonyx acutidens (15901 15915 15930 15997 16068 16078)
Wasatchian55.8 - 50.3USA (Wyoming) Esthonyx acutidens (15486 15557 15558 15563 15566 15642 15662 15710 15904 15906 15908 15910 15911 15942 16067)
Wasatchian55.8 - 50.3USA (Colorado) Esthonyx acutidens (15339 15409 15422 15650 15652)
Bridgerian50.3 - 46.2USA (Wyoming) Esthonyx acutidens (16207)
Bridgerian50.3 - 46.2USA (Colorado) Esthonyx acutidens (16240)