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Promerycochoerinae

Osteichthyes - Merycoidodontidae

Synonyms
Synonymy list
YearName and author
1949Promerycochoerinae Schultz and Falkenbach p. 84
1954Desmatochoerinae Schultz and Falkenbach p. 153
1996Promerycochoerinae Stevens and Stevens p. 510
2007Promerycochoerinae Stevens and Stevens p. 161
2023Promerycochoerinae Stevens et al. p. 50

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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()
RankNameAuthor
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
suborderTylopoda()
familyMerycoidodontidae
subfamilyPromerycochoerinae
subfamilyPromerycochoerinae

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.

Subfm. †Promerycochoerinae Schultz and Falkenbach 1949
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G. †Desmatochoerus Thorpe 1921
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Subg. †Desmatochoerus (Paradesmatochoerus) Schultz and Falkenbach 1954
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†Desmatochoerus (Paradesmatochoerus) anthonyi Schultz and Falkenbach 1968
†Desmatochoerus curvidens Thorpe 1921
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Invalid names: Desmatochoerus hatcheri geringensis Schultz and Falkenbach 1954 [synonym], Promerycochoerus grinnelli Koerner 1940 [synonym]
†Desmatochoerus hatcheri Douglass 1907
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Invalid names: Promerycochoerus erythroceps Stock 1932 [synonym], Promerycochoerus hesperus Stock 1930 [synonym], Promerycochoerus thorpei Koerner 1940 [synonym]
†Desmatochoerus megalodon Peterson 1907
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Invalid names: Merycoides giganteus Schultz and Falkenbach 1949 [synonym], Mesoreodon megalodon sweeti Schultz and Falkenbach 1949 [invalid subgroup], Mesoreodon wheeleri Koerner 1940 [synonym]
Invalid names: Desmatochoerus hatcheri niobrarensis Schultz and Falkenbach 1954 [synonym], Hypselochoerus Loomis 1933 [synonym]
G. †Megoreodon Schultz and Falkenbach 1954
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†Megoreodon grandis Douglass 1907
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Invalid names: Megoreodon fricki Schultz and Falkenbach 1954 [synonym], Promerycochoerus hollandi Douglass 1907 [synonym], Promerycochoerus loomisi Schlaikjer 1934 [synonym], Promerycochoerus lulli Thorpe 1921 [synonym]
Invalid names: Superdesmatochoerus Schultz and Falkenbach 1954 [synonym]
G. †Promerycochoerus Douglass 1901
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Subg. †Promerycochoerus (Parapromerycochoerus) Schultz and Falkenbach 1949
Subg. †Promerycochoerus (Pseudopromerycochoerus) Schultz and Falkenbach 1949
†Promerycochoerus carrikeri Peterson 1907
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Invalid names: Promerycochoerus (Parapromerycochoerus) barbouri Schultz and Falkenbach 1949 [synonym], Promerycochoerus gregoryi Loomis 1924 [synonym], Promerycochoerus thomsoni Loomis 1924 [synonym], Promerycochoerus vantasselensis Peterson 1907 [synonym]
†Promerycochoerus leidyi Bettany 1876
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Invalid names: Merycochoerus macrostegus Cope 1884 [synonym], Merycochoerus montanus Cope 1884 [synonym], Merycochoerus temporalis Bettany 1876 [synonym], Promerycochoerus (Pseudopromerycochoerus) montanus pinensis Schultz and Falkenbach 1949 [synonym], Promerycochoerus inflatus Thorpe 1921 [synonym], Promerycochoerus latidens Thorpe 1921 [synonym], Promerycochoerus microcephalus Thorpe 1921 [synonym]
G. †Pseudodesmatochoerus Schultz and Falkenbach 1954
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†Pseudodesmatochoerus hoffmani Schultz and Falkenbach 1954
†Pseudodesmatochoerus milleri Schultz and Falkenbach 1954
Invalid names: Desmatochoerinae Schultz and Falkenbach 1954 [synonym]
Diagnosis
ReferenceDiagnosis
C. B. Schultz and C. H. Falkenbach 1949small- to large-sized forms exhibiting a tendency towards brachycephalic skulls; a narrow supraoccipital region which is not fan shaped as in Merycochoerinae, Ticholeptinae, and Merychyinae; a small and shallow lacrimal fossa; an inflated muzzle with facial constriction; inflated bullae; brachyodont teeth; large C/ and P1; and a posterior intermediate crest on P3
C. B. Schultz and C. H. Falkenbach 1954 (Desmatochoerinae)The subfamily embraces forms with medium- to large-sized skulls [the two smallest, Subdesmatochoerus socialis and Prodesmatochoerus meekae, are approximately equal in size to examples of Ticholeptus hypsodus and T. tooheyi, and the largest, Megoreodon grandis, is slightly larger than examples of Promerycochoerus (Pseudopro- merycochoerus) inflatus].
M. S. Stevens et al. 2023Medium- to large-sized oreodonts (M1-3 length= 70-80 mm), with distinctively robust and posteriorly upturned zygomatic arches, which flare out posterolaterally.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: herbivoref
Reproduction: viviparoussubc
Created: 2005-08-31 14:37:21
Modified: 2005-08-31 16:37:21
Source: f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Lander 1998, Carroll 1988, Lillegraven 1979, Nowak 1999, Hendy et al. 2009

Age range: base of the Late/Upper Oligocene to the top of the Harrisonian or 27.30000 to 18.50000 Ma

Collections (69 total)


Time interval Ma Country or state Original ID and collection number
Geringian29.5 - 24.7USA (Montana) Promerycochoerus latidens (17722)
Geringian29.5 - 24.7USA (Nebraska) Megoreodon grandis (17595) Megoreodon sp. (17721) Mesoreodon megalodon (17474)
Geringian29.5 - 24.7USA (South Dakota) Desmatochoerus hatcheri (17505 17593) Megoreodon hollandi (17627) Mesoreodon megalodon (17634)
Arikareean29.5 - 18.5USA (California) Promerycochoerus erythroceps (17701) Promerycochoerus hesperus (17683)
Arikareean29.5 - 18.5USA (Idaho) Megoreodon grandis (17584)
Arikareean29.5 - 18.5USA (Wyoming) Desmatochoerus hatcheri (17727) Desmatochoerus hatcheri, Desmatochoerus anthonyi (17703) Desmatochoerus hatcheri, Megoreodon grandis, Mesoreodon megalodon, Pseudodesmatochoerus milleri (17532) Megoreodon fricki, Merycoides giganteus, Mesoreodon megalodon, Pseudodesmatochoerus hoffmani (17472) Mesoreodon megalodon (17511) Mesoreodon megalodon, Desmatochoerus hatcheri (17667) Mesoreodon megalodon, Pseudodesmatochoerus milleri (17524) Promerycochoerus leidyi (17696) Promerycochoerus loomisi (17466)
Arikareean29.5 - 18.5USA (South Dakota) Desmatochoerus curvidens, Promerycochoerus montanus (17447) Promerycochoerus carrikeri, Promerycochoerus montanus (17448) Promerycochoerus montanus (17452 17688) Promerycochoerus montanus, Promerycochoerus thomsoni (17690)
Arikareean29.5 - 18.5USA (Oregon) Eucrotaphus superbus, Merycochoerus leidyi, Merycochoerus temporalis (180202) Merycochoerus superbus (93080)
Arikareean29.5 - 18.5USA (Nebraska) Desmatochoerinae indet. (17719) Desmatochoerus hatcheri (17475 17711) Megoreodon grandis (17569) Mesoreodon megalodon (17473 17485 17539)
Arikareean29.5 - 18.5USA (Montana) Megoreodon sp. (17481 17540 17543) Mesoreodon wheeleri, Promerycochoerus thorpei (17509) Promerycochoerus grandis, Promerycochoerus hatcheri, Promerycochoerus hollandi, Promerycochoerus montanus (17478)
Chattian27.3 - 23.04USA (Oregon) Merycochoerus superbus (17603) Merycochoerus superbus, Promerycochoerus macrostegus (93079)
Late/Upper Oligocene27.3 - 23.04USA (New Mexico) Megoreodon grandis, Promerycochoerus carrikeri (31191)
Monroecreekian24.7 - 23.1USA (Washington) Promerycochoerus superbus (119840 119841)
Monroecreekian24.7 - 23.1USA (Nebraska) Promerycochoerus carrikeri (17565)
Monroecreekian24.7 - 23.1USA (South Dakota) Megoreodon hollandi (17723 69921) Promerycochoerus montanus (17547)
Monroecreekian - Harrisonian24.7 - 18.5USA (Nebraska) Megoreodon hollandi (17704)
Monroecreekian - Harrisonian24.7 - 18.5USA (Oregon) Merycochoerus superbus, Promerycochoerus macrostegus (17528)
Harrisonian23.1 - 18.5USA (Nebraska) Desmatochoerus curvidens (17841) Mesoreodon megalodon (17819) Promerycochoerus carrikeri (17808 17834)
Harrisonian23.1 - 18.5USA (Wyoming) Desmatochoerus curvidens, Promerycochoerus barbouri, Promerycochoerus carrikeri (17794) Promerycochoerus barbouri, Promerycochoerus carrikeri (17801 17815) Promerycochoerus carrikeri (17812 17813 17821) Promerycochoerus vantasselensis (17853)
Harrisonian23.1 - 18.5USA (South Dakota) Desmatochoerus curvidens, Promerycochoerus barbouri, Promerycochoerus carrikeri, Promerycochoerus montanus (17451) Promerycochoerus barbouri, Promerycochoerus carrikeri, Promerycochoerus montanus, Desmatochoerus curvidens (17455) Promerycochoerus montanus (17444 17449) Promerycochoerus pinensis (17506) Promerycochoerus thompsoni (17743)
Harrisonian23.1 - 18.5USA (Montana) Promerycochoerus barbouri (17761)
Early/Lower Miocene23.04 - 15.98USA (Oregon) Desmatochoerus leidyi, Superdesmatochoerus microcephalus (157001)