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Amphicaenopus platycephalus

Osteichthyes - Perissodactyla - Rhinocerotidae

Taxonomy
Aceratherium platycephalum was named by Osborn and Wortman (1894). Its type locality is Indian Stronghold (Protoceras Channel), which is in a Whitneyan fluvial sandstone in the Brule Formation of South Dakota.

It was recombined as Caenopus platycephalus by Osborn and Matthew (1909), Troxell (1921); it was recombined as Amphicaenopus platycephalus by Wood (1927), Stock (1933), Scott (1941), Bjork (1978), Hulbert (1992), Prothero (1998), Prothero (2005).

Synonymy list
YearName and author
1894Aceratherium platycephalum Osborn and Wortman
1902Aceratherium platycephalum Hay p. 645
1909Caenopus platycephalus Osborn and Matthew
1921Caenopus platycephalus Troxell
1927Amphicaenopus platycephalus Wood
1933Amphicaenopus platycephalus Stock
1941Amphicaenopus platycephalus Scott
1978Amphicaenopus platycephalus Bjork
1992Amphicaenopus platycephalus Hulbert, Jr.
1998Amphicaenopus platycephalus Prothero
2005Amphicaenopus platycephalus Prothero p. 39

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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()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
—Tapiromorpha(Haeckel 1873)
—Ceratomorpha(Wood 1937)
superfamilyRhinocerotoidea
familyRhinocerotidae
genusAmphicaenopus
speciesplatycephalus()

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.

†Amphicaenopus platycephalus Osborn and Wortman 1894
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserf
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-31 17:08:31
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Lillegraven 1979, Nowak 1991, Ji et al. 2002, Carroll 1988

Age range: base of the Whitneyan to the top of the Arikareean or 31.80000 to 18.50000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Whitneyan31.8 - 29.5USA (South Dakota) Aceratherium platycephalum (type locality: 17344) Amphicaenopus platycephalus (17316)
Arikareean29.5 - 18.5USA (North Dakota) Amphicaenopus sp. (17724)