Species: megalodon CASE, 1929
Etymology:
= Paleorhinus megalodon (CASE, 1929)
= Phytosaurus megalodon (CASE, 1929)
Holotype: UMMP 100336
Locality: Near Otis Chalk, about 20 miles 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.
Topotype: UMMP 10336A: Lower jaw.
Note: Found several hundred meters for 10336, probably belong to the same individual.
Note: LONG & MURRY, 1995, refer Brachysuchus megalodon to Angistorhinus
megalodon.
Referred material:
UMMP 8409: Skull.
UMMP 8868: Right quadrate and quadratojual.
UMMP 10335: Femur.
LONG & MURRY, 1995
Locality: Site 3, Quarry 3 (TMM Locality 31100), Howard County, Texas.
Horizon: “Pre-Tecovas Horizon”, Dockum Group.
Biostratigraphy:
Age: Middle Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
TMM 31100-167: Skull.
ROM 7977 (Was TMM 31100-238): Skull.
TMM 31100-164: Skull deck including squamosal of a small individual.
TMM 31100-11, 31100-209: Left squamosals.
TMM 31100-298, 31100-293: Right squamosals.
TMM 31100-12: Rostrum and dentary.
TMM 31100-126: Left and right squamosal, portion of rostrum, cervical and anterior dorsal vertebrae, poorly-preserved scapula, proximal humerus and scutes.
Locality: TMM Site 3 (TMM Locality 31098), Howard County, Texas.
Horizon: “Pre-Tecovas Horizon”, Dockum Group.
Biostratigraphy:
Age: Middle Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
TMM 31098-2: Skull.
TMM 31098-3: Lower jaw.
Locality: TMM Locality 42060, 1 mile (1.6 km) southwest of Quarry 1, Howard County, Texas.
Horizon: “Pre-Tecovas Horizon”, Dockum Group.
Biostratigraphy:
Age: Middle Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
TMM 42060: Incomplete deep right squamosal with dorsal sculpturing.