Species: grandis MEHL, 1913
Etymology:
Holotype: FMNH UC 631
Locality: Along the Popo Agie River, between Squaw and Baldwin Creeks, near Lander, Fremont County, Wyoming.
Horizon: Popo Agie Formation.
Biostratigraphy:
Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Skull and most of the dentary, lacking teeth.
Referred material:
LUCAS, HECKERT & KAHLE, 2002
Locality: Locality 9, near Otis Chalk, Howard County, Texas.
Horizon: Colorado City Formation, Chinle Group.
Biostratigraphy:
Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
Number: Not given: Skull, lower jaw, 2 cervical vertebrae, and parts of others, sacrum, pelvis, 12 ribs, 30 gastralia, an incomplete fibula, fragments of other long bones and 32 scutes.
= Angistorhinus gracilis MEHL, 1915
Etymology:Holotype:
Locality: Baldwin Creek, Fremont County, Wyoming.
Horizon: Popo Agie Formation.
Biostratigraphy:
Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Skull and mandible and associated skeletal parts.
= Angistorhinus maximus MEHL, 1928
Etymology:Holotype: UMMP 531
Locality: Little Popo Agie River, Fremont County, Wyoming.
Horizon: Popo Agie Member, Chugwater Formation.
Biostratigraphy:
Age: Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Skull missing the anterior end from the orbit, end of left ramus of mandible.
= Angistorhinus alticephalus STOVALL & WHARTON, 1936
Etymology:Holotype: OMNH 00733 (38-1-S1, 38-7-S1, 38-34-S1, 1032)
Locality: OMNH Locality V207, Roy Lamb Ranch, 256 miles (40 km) southeast of Big Springs, Howard County, Texas.
Horizon: “Pre-Tecovas Horizon”, Dockum Group.
Biostratigraphy:
Age: Middle Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Skull, 9 vertebrae, some rib fragments, and about 2 square feet of dermal scutes.
Note: Referred to Angistorhinus megalodon (LONG & MURRY, 1995).Referred material:
GREGORY, 1962
Locality: Otis Chalk, Howard County, West Texas.
Horizon: Dockum Formation.
Biostratigraphy:
Age: Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
UT?: 2 Skulls.
LUCAS, HUNT & KAHLE, 1993
Locality: Otis Chalk, Howard County, locality 9, West Texas
Horizon: Dockum Formation.
Biostratigraphy:
Age: Early Tuvalian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
Number: Not given: Skull and lower jaw and fragmentary skeleton.
Locality: Otis Chalk, Howard County, Locality 2, West Texas
Horizon: Dockum Formation.
Biostratigraphy:
Age: Early Tuvalian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
Number: Not given: Fragmentary skull.
= Angistorhinus aeolamnis EATON, 1965
Etymology:Holotype: KUVP 11659
Locality: Wind River Basin, 23 miles northwest of Lander via U.S. Highway 287 and 11 miles west of Highway 287 on Sage Creek Road, SE 1/4, T1N, R3W, Fremont County, Wyoming.
Horizon: Popo Agie Member, Chugwater Formation.
Biostratigraphy:
Age: Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Skull with some of the top missing.
Referred material:
KU 11660: Interorbital skull roof.