PBDB Taxon

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

Diadectes

Diadectidae

Taxonomy

Diadectes was named by Cope (1878).

It was assigned to Diadectidae by Cope (1880), Hay (1902), Case (1911), Perrier (1928), Hay (1930), Lewis and Vaughn (1965), Carroll et al. (1972), Carroll (1988), Martens et al. (2005) and Kissel (2010).

Species

D. absitus, D. alatus, D. carinatus, D. cretin, D. fissus, D. lentus, D. molaris, D. sideropelicus (syn. Helodectes paridens, Empedias alatus, Empedias fissus, D. biculminatus, Helodectes isaaci, D. rapidens, D. phaseolinus, Empedocles molaris, D. latibuccatus), D. tenuitectes (syn. D. maximus, D. huenei, Diadectoides cretin), D. tenuitectus, D. zenos, Empedocles alatus, Silvadectes

Sister genera

Silvadectes

Synonyms

Nothodon was named by Marsh (1878). It is not extant.

It was synonymized subjectively with Diadectes by Hay (1930).

It was assigned to Diadectidae by Hay (1902).
Empedocles was named by Cope (1878). It is not extant.

It was replaced with Empedias by Hay (1902); it was synonymized subjectively with Diadectes by Hay (1930).
Silvadectes was named by Kissel (2010). It is not extant.

It was considered a nomen nudum by Klembara et al. (2020).

It was assigned to Diadectidae by Kissel (2010).

Synonymy list

Year	Name and author
1878	Diadectes Cope
1878	Empedocles Cope
1878	Nothodon Marsh
1880	Diadectes Cope p. 304
1902	Diadectes Hay p. 427
1902	Nothodon Hay p. 428
1911	Diadectes Case pp. 9, 11
1928	Diadectes Perrier p. 3085
1930	Diadectes Hay p. 33
1965	Diadectes Lewis and Vaughn p. C13
1972	Diadectes Carroll et al. p. 55
1988	Diadectes Carroll
2005	Diadectes Martens et al.
2010	Silvadectes Kissel
2010	Diadectes Kissel p. 79

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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	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)

Rank	Name	Author
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Diadectomorpha	(Watson 1917)
family	Diadectidae
genus	Diadectes	Cope 1878

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. †Diadectes Cope 1878

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†Diadectes absitus Berman et al. 1998

†Diadectes alatus Cope 1878

†Diadectes carinatus Case and Williston 1912

†Diadectes cretin Case 1911

†Diadectes fissus Cope 1883

†Diadectes lentus Marsh 1878

†Diadectes molaris Cope 1878

†Diadectes sideropelicus Cope 1878

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Invalid names: Diadectes biculminatus Cope 1896 [synonym], Diadectes latibuccatus Cope 1878 [synonym], Diadectes phaseolinus Cope 1880 [synonym], Diadectes rapidens Cope 1878 [synonym], Empedias alatus Cope 1878 [synonym], Empedias fissus Cope 1883 [synonym], Empedocles molaris Cope 1878 [synonym], Helodectes isaaci Cope 1880 [synonym], Helodectes paridens Cope 1880 [synonym]

†Diadectes tenuitectes Cope 1896

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Invalid names: Diadectes huenei Broom 1914 [synonym], Diadectes maximus Case 1910 [synonym], Diadectoides cretin Case 1911 [synonym]

†Diadectes tenuitectus Cope 1896

†Diadectes zenos Case 1910

Invalid names: Empedocles Cope 1878 [synonym], Nothodon Marsh 1878 [synonym], Silvadectes Kissel 2010 [nomen nudum]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

brackish, freshwater, terrestrialuc

Locomotion:

actively mobilec

Created:

2017-04-17 15:15:19

Modified:

2017-04-17 15:15:19

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

References: Carroll 1988, Hendy et al. 2009

Age range: base of the Gzhelian to the top of the Leonardian or 303.70000 to 273.01000 Ma

Collections (58 total)

Time interval	Ma	Country or state	Original ID and collection number
Virgilian	303.7 - 298.9	USA (Oklahoma)	Diasparactus zenos (13947)
Virgilian	303.7 - 298.9	USA (New Mexico)	Diasparactus zenos (34761)
Gzhelian - Sakmarian	303.7 - 290.1	USA (New Mexico)	D. sp. (180989)
Virgilian - Wolfcampian	303.7 - 286.0	USA (New Mexico)	D. sp. (77412)
Asselian	298.9 - 295.5	USA (Texas)	D. sp. (173721 207496)
Asselian - Sakmarian	298.9 - 290.1	USA (Texas)	D. sp. (11165)
Wolfcampian	298.9 - 286.0	USA (Oklahoma)	D. sp. (28394)
Wolfcampian	298.9 - 286.0	USA (New Mexico)	D. lentus (80833 180106 180383 180384 180940) D. sp. (85436 180382 180974 181075) Diasparactus zenos (80130)
Wolfcampian	298.9 - 286.0	USA (Colorado)	Animasaurus carinatus (180939)
Wolfcampian	298.9 - 286.0	USA (Texas)	D. sideropelicus (180957 180978)
Wolfcampian - Leonardian	298.9 - 273.01	USA (Utah)	D. sp. (80110)
Permian	298.9 - 251.902	USA (Oklahoma)	D. sp. (221391)
Sakmarian	293.52 - 290.1	USA (Texas)	D. latibuccatus (28124) D. sp. (28125)
Sakmarian - Artinskian	293.52 - 279.3	USA (New Mexico)	D. sp. (180988)
Sakmarian - Artinskian	293.52 - 279.3	USA (Texas)	D. phaseolinus, Empedias molaris (28324)
Artinskian	290.1 - 279.3	USA (Texas)	D. latibuccatus, D. phaseolinus, Empedias molaris (108766) D. sideropelicus (84716) D. sideropelicus, D. biculminatus, Empedias alatus (28142) D. sp. (13080 28143 28145 28146 28147 28148 28149 28238 28240) D. sp., Empedias fissus (28150)
Artinskian	290.1 - 279.3	Germany (Thuringia)	D. absitus (80112)
Artinskian - Kungurian	290.1 - 272.3	USA (Oklahoma)	D. sp. (85733)
Artinskian - Kungurian	290.1 - 272.3	USA (Texas)	D. sp. (28241 28252 85301) D. sp., Helodectes isaaci, Helodectes paridens (28253)
Artinskian - Roadian	290.1 - 268.8	USA (Texas)	D. sp. (180992)
Leonardian	286.0 - 273.01	USA (Oklahoma)	D. sp. (180990 180991)
Leonardian	286.0 - 273.01	USA (Texas)	D. sp. (68171)
Kungurian	279.3 - 272.3	USA (Texas)	Bolbodon tenuitectes, D. huenei (28256) D. sp. (28264 28267 28272 28273 67735 178738) D. sp., Diadectoides cretin (28275)