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Castoroidea

Mammalia - Rodentia

Taxonomy
Castoroidea was named by Gray (1821) [authorship based on principle of coordination; apparently first used at this rank by Gill 1872]. It is extant.

It was assigned to Rodentia by Montgelard et al. (2002).

Synonymy list
YearName and author
1821Castoroidea Gray
2002Castoroidea Montgelard et al. p. 230

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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
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
EuarchontogliresMurphy et al. 2001
Glires()
orderRodentia
superfamilyCastoroideaGray 1821
superfamilyCastoroideaGray 1821

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
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Nowak 1999, Carroll 1988, Hendy et al. 2009, Ji et al. 2002

Age range

Maximum range based only on fossils: base of the Uintan to the top of the Holocene or 46.20000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 40.4 Ma

Collections (778 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Late/Upper Uintan46.2 - 40.4USA (Texas) Eutypomyidae indet. (16542)
Late/Upper Uintan46.2 - 40.4Canada (Saskatchewan) Janimus mirus (16626)
Uintan46.2 - 40.4USA (Texas) Eutypomyidae indet. (16535)
Uintan46.2 - 40.4USA (Utah) Janimus rhinophilus (16607)
Duchesnean40.4 - 37.2Canada (Saskatchewan) Eutypomys acares, Eutypomys obliquidens, Janimus sp., Eutypomys tilliei (16845) Eutypomys sp., Janimus sp. (16846)
Duchesnean40.4 - 37.2USA (Texas) Eutypomys inexpectatus (16828 16830 16837)
Duchesnean - Chadronian40.4 - 33.9Canada (Saskatchewan) Eutypomys sp. (17020)
Duchesnean - Chadronian40.4 - 33.9USA (Montana) Eutypomys sp. (16840)
Chadronian37.2 - 33.9USA (Nebraska) Agnotocastor sp. (17033) Agnotocastor sp., Eutypomys sp. (17014) Eutypomys sp. (16917)
Chadronian37.2 - 33.9USA (Texas) Eutypomys inexpectatus (17016)
Chadronian37.2 - 33.9USA (Montana) Eutypomys parvus (16959) Eutypomys sp. (16939 17028)
Chadronian37.2 - 33.9Canada (Saskatchewan) Castoridae indet., Eutypomys parvus (16919)
Chadronian37.2 - 33.9USA (South Dakota) Eutypomys thomsoni (17007)
Chadronian37.2 - 33.9USA (North Dakota) Eutypomys parvus (16991)
Chadronian37.2 - 33.9USA (Wyoming) Agnotocastor galushai (16964) Eutypomys sp. (16961)
Late/Upper Chadronian37.2 - 33.9USA (Colorado) Eutypomys parvus (85117)
Late/Upper Eocene37.2 - 33.9United Kingdom (England) Steneofiber sp. (39300)
Middle Chadronian37.2 - 33.9Canada (Saskatchewan) Eutypomys sp. (16928)
Orellan33.9 - 33.3USA (Montana) Agnotocastor sp. (17090)
Orellan33.9 - 33.3USA (North Dakota) Agnotocastor praetereadens, Oligotheriomys primus (17101) Eutypomys hibernodus (17128)