Genus: Anaschisma BRANSON, 1905
Etymology: As per Gee et al. (2020)...The origin of the genus name Anaschisma is unclear, as in common for early taxonomic acts; none was ever provided by Branson (1905) or Branson & Mehl (1929). If it can be accepted that the name has true linguistic roots (rather than from a name: e.g. Buettneria from William Buettner), then it would most likely derived from the Greek prefix, "ana-" and the Latin suffix "-schism," and the name would translate literally to 'upward division' or backward division,' although it is unclar what morphological aspect this would refer to...
= Borborophagus BRANSON & MEHL, 1929
Etymology:
= Koskinonodon BRANSON & MEHL, 1929
Etymology:

Species: browni BRANSON, 1905
Etymology: In honor of Newton H. Brown, who discovered some of the firt metoposaurid specimens from the Popo Agie Formation in 1902
= Eupelor browni (BRANSON, 1905) COLBERT & IMBRIE, 1956
= Metoposaurus browni (BRANSON, 1905) CHOWDHURY, 1965

Holotype: CNHM UC-447

Locality: Excat localtiy unknown, near Lander Region, Fremont County, Wyoming.

Horizon: Popo Agie Formation, Chugwater Group.

Biostratigraphy:

Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: Skull, fragmentary dentary and fragmentary skeleton.

Referred material:

= Anaschisma brachygnatha BRANSON, 1905 (nomen dubium)
Etymology: Greek, brachys, “short” and Latin, gnathus, “jaw.”

Holotype: CNHM UC-448

Locality: Excat localtiy unknown, near Lander Region, Fremont County, Wyoming.

Horizon: Popo Agie Formation, Chugwater Group.

Biostratigraphy:

Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: Skull and dentary.

= Borborophagus wyomingensis BRANSON & MEHL, 1929
Etymology: In reference to Wyoming, the state of origin.

Holotype: UM 517

Locality: 30 miles northwest of Lander, Sage Creek, Fremont County, Wyoming.

Horizon: Popo Agie Formation, Chugwater Group.

Biostratigraphy:

Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: Skull.

UM 513: Skull and clavicle.

Paratype: UM 583: Several vertebrae discovered near the skull and clavicle.

 

= Borborophagus sp BRANSON & MEHL, 1929

Locality: Bull Lake Creek, Fremont County, Wyoming.

Horizon: Popo Agie Formation, Chugwater Group.

Biostratigraphy:

Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material:

UM 518: Interclavicle.

 

= Koskinonodon princeps BRANSON & MEHL, 1929
Etymology:

Holotype: UM 537VP

Locality: Bull Lake Creek, Fremont County, Wyoming.

Horizon: Popo Agie Formation, Chugwater Group.

Biostratigraphy:

Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: Skull.

Paratypes:

UM 504VP, UM 505VP, UM 527VP: Skulls.

UM 512: Clavicle.

UM 567VP: Mandibular ramus, also a second mandibular ramus.

UM 506, UM 521: Interclavicle.

UM 556: Ilium.

Also some fragmentary interclavicles.

 

= Metopias diagnosticus (in part: MIALL, 1875)
= Metoposaurus diagnosticus (in part, LYDEKKER, 1890)
= Metoposaurus diagnosticus (in part: Watson, 1919)

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

 

= Metoposaurus fraasi fraasi (LUCAS, 1904)
Etymology:
= Metoposaurus fraasi LUCAS, 1904
= Kalamoiketer (?) fraasi (LUCAS, 1904) BRANSON & MEHL,1929
= Eupelor fraasi fraasi (LUCAS, 1904)

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

 

 

= Metoposaurus maleriensis ROY CHOWDHURY, 1965
Etymology: In reference to the Maleri Formation.
= Buettneria maleriensis (ROY CHOWDHURY, 1965) SENGUPTA, 2002

Holotype: ISI A4

Locality: Achlapur No. 2, Pranhita Godavari Valley, Andhra Pradesh State, India.

Horizon: Maleri Formation.

Biostratigraphy:

Age: Late Triassic.

Material: Fragmentary skull.

Paratypes:

ISI A. 1, ISI A. 2, ISI A. 3, ISI A. 6: Fragmentary skulls.

ISI A. 5: Left squamosal.

ISI A. 9: Interclavicle.

ISI A. 10: Left clavicle.

ISI A. 13: Atlas.

ISI A. 14: 4 vertebrae.

ISI A. 16: Right ischium.

ISI A. 17: Left humerus.

 

Locality: Achlapur No. 1., Pranhita Godavari Valley, Andhra Pradesh State, India.

Horizon: Lower Maleri Formation.

Biostratigraphy:

Age: Late Triassic.

Material:

ISI A. 7: Fragmentary skull.

ISI A. 11: Left clavicle.

ISI A. 15: 3 vertebrae.

 

Locality: Gampalpalli, Pranhita Godavari Valley, Andhra Pradesh State, India.

Horizon: Lower Maleri Formation.

Biostratigraphy:

Age: Late Triassic.

Material:

ISI A. 8: Fragmentary skull.

ISI A. 12: Right clavicle.

 

Locality: Pranhita Godavari Valley, Andhra Pradesh State, India.

Horizon: Lower Maleri Formation.

Biostratigraphy:

Age: Late Triassic.

Material:

K 33/630a:

K 33/606a:

K 33/611a:

K 33/602a:

TMM 31099-12B:

 

SENGUPTA, 1992

Locality: 1 ½ km south of Tiki village, 23°56’: 81°22’, Shadol district, Mahdya Pradesh State, India.

Horizon: The red clay beds of the Tiki Formation.

Biostratigraphy:

Age: Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material:

GSI 53: Partial skull lacking the preorbital region and the snout.

ISI 2249: Fragment of an interclavicle.
Note: Originally described as a skulll roof bone by LYDEKKER, 1885

ISI 3354, 2263: Fragments of lower jaw.