PBDB Taxon

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

Molgophidae

Taxonomy

Molgophidae was named by Cope (1875). Its type is Molgophis.

It was assigned to Microsauria by Cope (1875) and Hay (1902); to Aistopoda by Kuhn (1946); to Microsauria by Brough and Brough (1967); and to Recumbirostra by Mann et al. (2019).

Subtaxa

Brachydectes (syn. Pleuroptyx, Lysorophus, Cocytinus), Infernovenator, Molgophis (type genus)

Synonyms

Cocytinidae was named by Cope (1875). It was considered monophyletic by Wellstead (1991) and Pardo and Anderson (2016).

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

It was assigned to Urodela by Cope (1875); and to Lysorophia by Wellstead (1991) and Carroll et al. (1998).

Synonymy list

Year	Name and author
1875	Molgophidae Cope p. 11
1875	Cocytinidae Cope p. 12
1902	Molgophidae Hay p. 411
1946	Molgophidae Kuhn p. 53
1967	Molgophidae Brough and Brough pp. 113-127
1991	Cocytinidae Wellstead
1998	Cocytinidae Carroll et al. p. xii
2019	Molgophidae Mann 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
family	Molgophidae

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.

Fm. †Molgophidae Cope 1875

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G. †Infernovenator Mann et al. 2019

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†Infernovenator steenae Mann et al. 2019

G. †Molgophis Cope 1868

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†Molgophis macrurus Cope 1868

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Invalid names: Molgophis brevicostatus Cope 1875 [synonym]

Invalid names: Cocytinidae 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: Hendy et al. 2009, Carroll 1988

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

Collections (48 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)	Brachydectes newberryi, Pleuroptyx clavatus, Molgophis macrurus, Molgophis wheatleyi, Cocytinus gyrinoides (85292) Molgophis macrurus (178682 178696 178697 178698)
Westphalian D	309.8 - 307.5	USA (Illinois)	Brachydectes newberryi, Infernovenator steenae (79598)
Stephanian	307.5 - 300.4	USA (Ohio)	Molgophis macrurus (177046)
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)	Brachydectes newberryi, Lysorophus dunkardensis (177058)
Gzhelian - Sakmarian	303.7 - 290.1	USA (New Mexico)	Lysorophus sp. (180989)
Asselian	298.9 - 295.5	USA (Nebraska)	Brachydectes elongatus, Brachydectes newberryi (179620) Brachydectes indet. (162676) Brachydectes indet., Brachydectes elongatus (179619)
Wolfcampian	298.9 - 286.0	USA (Kansas)	Brachydectes elongatus (178666)
Wolfcampian	298.9 - 286.0	USA (West Virginia)	Lysorophus dunkardensis (177138 178674 178675)
Wolfcampian	298.9 - 286.0	USA (Ohio)	Lysorophus dunkardensis (178676)
Wolfcampian	298.9 - 286.0	USA (Pennsylvania)	Lysorophus sp. (178681)
Sakmarian	293.52 - 290.1	USA (Kansas)	Lysorophus sp. (180979)
Sakmarian	293.52 - 290.1	USA (Maryland)	Lysorophus sp. (127038)
Sakmarian	293.52 - 290.1	USA (West Virginia)	Brachydectes sp. (177067)
Artinskian	290.1 - 279.3	USA (Oklahoma)	Lysorophus tricarinatus (79402)
Artinskian	290.1 - 279.3	USA (Texas)	Brachydectes elongatus (178669)
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)	Brachydectes elongatus (28275 85342) Lysorophus sp. (27704 28270 28276 90452) Lysorophus sp., Brachydectes elongatus (28256 28267) Lysorophus tricarinatus (12976 67735 85550 177015 177017)