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Chriacus baldwini

Mammalia - Procreodi - Arctocyonidae

Taxonomy
Deltatherium baldwini was named by Cope (1882). It is a 3D body fossil.

It was synonymized subjectively with Chriacus pelvidens by Rigby (1976); it was recombined as Chriacus baldwini by Cope (1888), Scott (1892), Osborn and Earle (1895), Matthew (1897), Hay (1902), Hay (1930), Matthew (1937), Van Valen (1978), Tsentas (1981), Rose (1996).

Synonyms
Synonymy list
YearName and author
1882Deltatherium baldwini Cope p. 463
1883Deltatherium baldwini Cope p. 282
1884Tricentes crassicollidens Cope p. 315
1888Chriacus schlosserianus Cope p. 338
1888Chriacus baldwini Cope p. 340
1892Chriacus baldwini Scott p. 296
1892Epichriacus schlosserianus Scott p. 296
1892Tricentes crassicollidens Scott p. 297
1895Chriacus baldwini Osborn and Earle
1895Chriacus schlosserianus Osborn and Earle
1897Tricentes crassicollidens Matthew p. 272
1897Chriacus baldwini Matthew p. 274
1897Chriacus schlosserianus Matthew p. 275
1902Chriacus baldwini Hay p. 745
1902Chriacus schlosserianus Hay p. 745
1902Tricentes crassicollidens Hay p. 746
1930Chriacus baldwini Hay p. 461
1930Chriacus schlosserianus Hay p. 461
1930Tricentes crassicollidens Hay p. 462
1935Metachriacus provocator Simpson
1935Spanoxyodon latrunculus Simpson
1937Chriacus baldwini Matthew
1941Oxyclaenus pearcei Gazin pp. 20 - 21 figs. Figure 12
1978Chriacus baldwini Van Valen
1981Tricentes provocator Rose
1981Chriacus baldwini Tsentas
1987Chriacus provocator Archibald et al.
1996Chriacus baldwini Rose p. 1707

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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
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
orderProcreodiMatthew 1915
familyArctocyonidaeMurray 1866
genusChriacusCope 1883
speciesbaldwini()

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.

†Chriacus baldwini Cope 1882
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Invalid names: Chriacus schlosserianus Cope 1888 [synonym], Metachriacus provocator Simpson 1935 [synonym], Oxyclaenus pearcei Gazin 1941 [synonym], Spanoxyodon latrunculus Simpson 1935 [synonym], Tricentes crassicollidens Cope 1884 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialg
Diet: omnivoreg
Reproduction: viviparoussubc
Created: 2005-08-31 13:55:00
Modified: 2011-04-24 18:52:01
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Archibald 1998, Carroll 1988, Ji et al. 2002, Hendy et al. 2009

Age range: base of the Torrejonian to the top of the Ti1 or 63.80000 to 56.20000 Ma

Collections (23 total)


Time interval Ma Country or state Original ID and collection number
Torrejonian63.8 - 60.9USA (Texas) Tricentes truncatus (14956 14975)
Torrejonian63.8 - 60.9USA (New Mexico) Chriacus baldwini (14824 14825 14832 14833 14865 14868 14869 14893)
Torrejonian63.8 - 60.9USA (Wyoming) Chriacus baldwini (14898)
Torrejonian63.8 - 60.9USA (Montana) Metachriacus provocator (14917 14918 14919 14920 14923) Spanoxyodon latrunculus (14906)
Torrejonian63.8 - 60.9USA (Utah) Oxyclaenus pearcei (14889) Oxyclaenus pearcei, Chriacus sp. (14830)
Ti160.9 - 56.2Canada (Alberta) Chriacus baldwini (14939)
Ti460.9 - 56.2Canada (Saskatchewan) Chriacus sp. (14978)
Tiffanian60.9 - 56.2USA (Wyoming) Chriacus baldwini (14981) Chriacus truncatus (14965)