PBDB Taxon

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

Brachydectes

Molgophidae

Taxonomy

Brachydectes was named by Cope (1868). Its type is Brachydectes newberryi.

It was assigned to Lysorophidae by Cope (1868); to Hylonomidae by Hay (1902); to Cocytinidae by Carroll et al. (1998); and to Lepospondyli by Maddin et al. (2012).

Species

B. newberryi (syn. Lysorophus tricarinatus, B. elongatus, Molgophis wheatleyi, Pleuroptyx clavatus, Cocytinus gyrinoides) (type species), Lysorophus dunkardensis

Synonyms

Pleuroptyx was named by Cope (1875).

It was synonymized subjectively with Brachydectes by Pardo and Anderson (2016).

It was assigned to Microsauria by Hay (1902); and to Cocytinidae by Carroll et al. (1998).
Cocytinus was named by Cope (1871). It is not extant. Its type is Cocytinus gyrinoides. It was considered monophyletic by Wellstead (1991).

It was synonymized subjectively with Brachydectes by Wellstead (1991).

It was assigned to Cocytinidae by Cope (1875); to Tuditanidae by Hay (1902); and to Lysorophidae by Carroll (1988).
Lysorophus was named by Cope (1877). It is not extant.

It was synonymized subjectively with Brachydectes by Pardo and Anderson (2016).

It was assigned to Clepsydropidae by Cope (1888) and Hay (1902); to Lysorophidae by Daly (1973) and Carroll (1988); and to Lysorophia by Carroll et al. (1998).

Synonymy list

Year	Name and author
1868	Brachydectes Cope
1871	Cocytinus Cope
1875	Pleuroptyx Cope
1875	Cocytinus Cope p. 12
1877	Lysorophus Cope p. 187
1888	Lysorophus Cope p. 287
1902	Brachydectes Hay p. 413
1902	Cocytinus Hay p. 416
1902	Pleuroptyx Hay p. 417
1902	Lysorophus Hay p. 433
1973	Lysorophus Daly p. 571
1988	Cocytinus Carroll
1988	Lysorophus Carroll
1998	Brachydectes Carroll et al. p. 143
1998	Lysorophus Carroll et al. p. 144
1998	Pleuroptyx Carroll et al. p. 144
2012	Brachydectes 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	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)

Rank	Name	Author
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Recumbirostra	Anderson 2007
family	Molgophidae
genus	Brachydectes

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. †Brachydectes Cope 1868

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†Brachydectes newberryi Cope 1868

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Invalid names: Brachydectes elongatus Wellstead 1991 [synonym], Cocytinus gyrinoides Cope 1871 [synonym], Lysorophus tricarinatus Cope 1877 [synonym], Molgophis wheatleyi Cope 1874 [synonym], Pleuroptyx clavatus Cope 1875 [synonym]

Invalid names: Cocytinus Cope 1871 [synonym], Lysorophus Cope 1877 [synonym], Pleuroptyx Cope 1875 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialuc

Locomotion:

actively mobilec

Created:

2017-04-17 15:15:35

Modified:

2017-04-17 15:15:35

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

References: Carroll 1988, Hendy et al. 2009

Age range: base of the Westphalian A to the top of the Leonardian or 318.70000 to 273.01000 Ma

Collections (43 total)

Time interval	Ma	Country or state	Original ID and collection number
Bashkirian	323.2 - 315.2	United Kingdom (England)	Lysorophus sp. (177139)
Westphalian A	318.7 - 316.9	United Kingdom (England)	Lysorophus sp. (175174)
Westphalian D	309.8 - 307.5	USA (Ohio)	B. newberryi, Pleuroptyx clavatus, Molgophis wheatleyi, Cocytinus gyrinoides (85292)
Westphalian D	309.8 - 307.5	USA (Illinois)	B. newberryi (79598)
Stephanian	307.5 - 300.4	USA (Pennsylvania)	Lysorophus dunkardensis (126535)
Stephanian	307.5 - 300.4	USA (West Virginia)	Lysorophus dunkardensis (178677)
Stephanian - Virgilian	307.5 - 298.9	USA (Illinois)	Lysorophus sp. (81114)
Missourian	306.0 - 303.7	USA (Illinois)	Lysorophus tricarinatus (80714)
Virgilian	303.7 - 298.9	USA (West Virginia)	B. newberryi, Lysorophus dunkardensis (177058)
Gzhelian - Sakmarian	303.7 - 290.1	USA (New Mexico)	Lysorophus sp. (180989)
Asselian	298.9 - 295.5	USA (Nebraska)	B. elongatus, B. newberryi (179620) Brachydectes indet. (162676) Brachydectes indet., B. elongatus (179619)
Wolfcampian	298.9 - 286.0	USA (West Virginia)	Lysorophus dunkardensis (177138 178674 178675)
Wolfcampian	298.9 - 286.0	USA (Pennsylvania)	Lysorophus sp. (178681)
Wolfcampian	298.9 - 286.0	USA (Ohio)	Lysorophus dunkardensis (178676)
Wolfcampian	298.9 - 286.0	USA (Kansas)	B. elongatus (178666)
Sakmarian	293.52 - 290.1	USA (Maryland)	Lysorophus sp. (127038)
Sakmarian	293.52 - 290.1	USA (Kansas)	Lysorophus sp. (180979)
Sakmarian	293.52 - 290.1	USA (West Virginia)	B. sp. (177067)
Artinskian	290.1 - 279.3	USA (Texas)	B. elongatus (178669)
Artinskian	290.1 - 279.3	USA (Oklahoma)	Lysorophus tricarinatus (79402)
Artinskian - Kungurian	290.1 - 272.3	USA (Texas)	Lysorophus tricarinatus (85299 85300)
Leonardian	286.0 - 273.01	USA (Texas)	Lysorophus tricarinatus (177006)
Leonardian	286.0 - 273.01	USA (Oklahoma)	Lysorophus tricarinatus (177062)
Kungurian	279.3 - 272.3	USA (Oklahoma)	Lysorophus tricarinatus (67945 79531)
Kungurian	279.3 - 272.3	USA (Texas)	B. elongatus (28275 85342) Lysorophus sp. (27704 28270 28276 90452) Lysorophus sp., B. elongatus (28256 28267) Lysorophus tricarinatus (12976 67735 85550 177015 177017)