PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Diplocaulus

Amphibia - Diplocaulidae

Taxonomy

Diplocaulus was named by Cope (1877). It is not extant. Its type is Diplocaulus salamandroides. It is the type genus of Diplocaulidae.

It was assigned to Diplocaulinae by Beerbower (1963); to Keraterpetontidae by Daly (1973), Dutuit (1988) and Carroll (1988); to Diplocaulidae by Cope (1881), Hay (1902), Broili (1904) and Carroll et al. (1998); and to Nectridea by Maddin et al. (2012).

Species

D. brevirostris, D. copei, D. magnicornis (syn. Platyops parvus, D. pusillus, D. primigenius, D. limbatus), D. minimus, D. parvus, D. primus, D. recurvatus, D. salamandroides (type species)

Synonyms

Peronedon was named by Olson (1970). It is not extant.

It was synonymized subjectively with Diplocaulus by Milner (1996).

It was assigned to Keraterpetontidae by Olson (1970) and Haglund (1977).
Platyops was named by Williston (1918). It is not extant.

It was replaced with Permoplatyops by Case (1946).
Permoplatyops was named by Case (1946). It is not extant.

It was synonymized subjectively with Diplocaulus by Olson (1951).

It was assigned to Diplocaulidae by Case (1946).
Diplocaulus copei was named by Broili (1904). Its type specimen is a specimen in the Alte Akademie, Munich, Germany, a skeleton, and it is a 3D body fossil. Its type locality is Table Top Mountain, 40 (Arroyo Formation), which is in a Kungurian terrestrial claystone/sandstone in the Arroyo Formation of Texas.

It was considered a nomen dubium by Olson (1951); it was considered a nomen vanum by Carroll et al. (1998).

Synonymy list

Year	Name and author
1877	Diplocaulus Cope pp. 187-188
1881	Diplocaulus Cope p. 163
1902	Diplocaulus Hay p. 416
1904	Diplocaulus copei Broili pp. 21-24 figs. Pl. II, III
1904	Diplocaulus Broili p. 26
1918	Platyops Williston
1946	Permoplatyops Case p. 325 fig. 28
1963	Diplocaulus Beerbower p. 104
1970	Peronedon Olson
1973	Diplocaulus Daly p. 570
1977	Peronedon Haglund pp. 983, 984
1988	Diplocaulus Carroll
1988	Diplocaulus Dutuit p. 852
1998	Diplocaulus Carroll et al. p. 76
2012	Diplocaulus Maddin et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()

Rank	Name	Author
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
class	Amphibia
—	Lepospondyli	()
—	Nectridea	()
family	Diplocaulidae
genus	Diplocaulus

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.

G. †Diplocaulus Cope 1877

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†Diplocaulus brevirostris Olson 1951

†Diplocaulus magnicornis Cope 1882

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Invalid names: Diplocaulus limbatus Cope 1896 [synonym], Diplocaulus primigenius Mehl 1921 [synonym], Diplocaulus pusillus Broili 1904 [synonym], Platyops parvus Williston 1918 [synonym]

†Diplocaulus minimus Dutuit 1988

†Diplocaulus parvus Olson 1972

†Diplocaulus primus Olson 1970

†Diplocaulus recurvatus Olson 1952

†Diplocaulus salamandroides Cope 1877

Invalid names: Diplocaulus copei Broili 1904 [nomen vanum], Permoplatyops Case 1946 [synonym], Peronedon Olson 1970 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

brackish, freshwater, terrestrialuc

Locomotion:

actively mobilec

Dispersal:

waterc

Created:

2005-03-06 14:47:58

Modified:

2005-03-06 16:47:58

Source: c = class, subp = subphylum, uc = unranked clade

References: Uhen 2004, Hendy et al. 2009, Carroll 1988

Age range: base of the Missourian to the top of the Wuchiapingian or 306.00000 to 254.17000 Ma

Collections (60 total)

Time interval	Ma	Country or state	Original ID and collection number
Stephanian	307.5 - 300.4	USA (Pennsylvania)	D. sp. (126535)
Missourian	306.0 - 303.7	USA (Illinois)	D. salamandroides (80714)
Virgilian	303.7 - 298.9	USA (Pennsylvania)	D. salamandroides (176408)
Virgilian	303.7 - 298.9	USA (Kansas)	D. sp. (180633)
Gzhelian - Sakmarian	303.7 - 290.1	USA (New Mexico)	D. sp. (180989)
Wolfcampian	298.9 - 286.0	USA (New Mexico)	D. sp. (85436 180974 181037 181078)
Permian	298.9 - 251.902	USA (Oklahoma)	D. sp. (221389 221391 221392)
Artinskian	290.1 - 279.3	USA (Oklahoma)	D. magnicornis (79402) D. sp. (220872)
Artinskian	290.1 - 279.3	USA (Texas)	D. sp. (13080 22714)
Artinskian - Kungurian	290.1 - 272.3	USA (Texas)	D. sp. (28241 85299 85300 85301)
Artinskian - Roadian	290.1 - 268.8	USA (Texas)	D. sp. (180992)
Leonardian	286.0 - 273.01	USA (Texas)	D. recurvatus (85362 177006 177018 178739)
Leonardian	286.0 - 273.01	USA (Oklahoma)	D. magnicornis (85567 180990 180991) D. sp. (79815)
Kungurian	279.3 - 272.3	USA (Texas)	D. magnicornis (28275 177019) D. magnicornis, Peronedon primus, D. recurvatus (67735) D. magnicornis, Platyops parvus, D. brevirostris, D. primigenius (28267) D. recurvatus (12976 85551 85552 85553 85555 177000 177002 177005 177014 177015 177017 178738) D. sp. (22716 28264 28266 28273 28277) D. sp., D. magnicornis (28261 28270) D. sp., D. magnicornis, D. limbatus, D. brevirostris (28256) D. sp., D. recurvatus (27704) Platyops sp., D. copei (28272) Reptilia indet., Peronedon sp. (90452)
Kungurian	279.3 - 272.3	USA (Oklahoma)	D. magnicornis, Peronedon primus (67945) Peronedon primus (79531)
Roadian - Wordian	272.3 - 264.28	USA (Oklahoma)	D. parvus (27400)
Wuchiapingian	259.9 - 254.17	Morocco (Marrakech-Tensift-Al Haouz)	D. minimus (89607)