Genus: Lucasuchus LONG & MURRY, 1995
Etymology: In honor of Spencer Lucas, whose recent analyses of aetosaurian taxonomy and biochronology greatly simulates our studies and Greek, souchos, "crocodile."

Species: hunti LONG & MURRY, 1995
Etymology: This species epithet is for Adrian Hunt, in recognition of his work on southwestern Triassic tetrapods.

Holotype: TMM 31100-257

Locality: TMM Site 3, Quarry 3 (TMM Locality 31100), Howard County, Texas.

Horizon: Colorado City Formation (“Pre-Tecovas Horizon”), Dockum Group.

Biostratigraphy:

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

Material: Left paramedian plate from mid-dorsal region.

Referred material:

TMM 31100-312: Right paramedian plate form anterior dorsal region, complete except for anteromedial margin and posteromedial edge.

TMM 31100-150: Right mid-dorsal paramedian plate.

TMM 31100-361: Right anterior dorsal paramedian plate.

TMM 31100-109: 2 caudal and one “dorsal paramedian plates.

TMM 31100-267: Right incomplete paramedian plate, probably representing a mid-dorsal.

TMM 31100-490: Dorsal paramedian plate.

TMM 31100-476: Anterior dorsal paramedian plate.

TMM 31100-469: Cervical paramedian plate.

TMM 31100-472: Right cervical paramedian plate (Complete but unprepared with tall eminence).

TMM 31100-489: Anterior presacral left paramedian plate.

TMM 31100-487: Right posterior cervical paramedian plate.

TMM 31100-483: Posterior cervical paramedian plate.

TMM 31100-484: Anterior paresacral paramedian plate.

TMM 31100-485: First or second right cervical paramedian plate.

TMM 31100-477: Right dorsal paramedian plate (With an especially large eminence).

TMM 31100-468: Dorsal paramedian plate.

TMM 31100-482: Mid-dorsal left paramedian plate.

TMM 31100-492: Paramedian plate.

TMM 31100-503: Cervical lateral plate.

TMM 31100-340: ?Posterior cervical lateral plate.

TMM 31100-507: Pectoral lateral plate with cone-shaped horn.

TMM 31100-109, TMM 31100-481, TMM 31100-474, TMM 31100-479, TMM 31100-506, TMM 31100-473, TMM 31100-499, TMM 31100-504, TMM 31100-505: Dorsal lateral plates.

TMM 31100-502: Anterior caudal lateral plate.

TMM 31100-471: Anterior to mid-caudal? Lateral plate.

TMM 31100-475, TMM 31100-500, TMM 31100-486: Mid-caudal lateral plates.

TMM 31100-501: ?Mid-caudal lateral plate.

TMM 31100-300: ?Lateral plate.

TMM 31100-480: Mid-caudal vertebra missing neural spine.

TMM 31100-7: Left scapula, essentially complete though with some reconstruction of scapular blade.

TMM 31100-2: Right scapulocoracoid, some restoration and with anteroventral margin incomplete.

?TMM 31100-313: Nearly complete pelvis.

?TMM 31100-1: Complete left ilium.

TMM 31100-528: Left femur, complete though unprepared.

TMM 31100-498: Right calcaneum.

 

Locality: TMM Site 3, Quarry 3A (TMM Locality 31185), 3 miles north of Otis Chalk, Howard County, Texas.

Horizon: “Pre-Tecovas Horizon”, Dockum Group.

Biostratigraphy:

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

Material:

TMM 31185-66: Right posterior cervical paramedian plate, incomplete dorsal paramedian plate.

TMM 31185-66: Six lateral plates, including a possible lateral cervical.

TMM 31185-65: 3 dorsal vertebrae.