Genus: Nicrosaurus non O. FRAAS, 1866

Species: ? superciliosus (COPE, 1893) (nomen dubium)
= Belodon superciliosum COPE, 1893 (nomen dubium)
= Phytosaurus superciliosum (COPE, 1893) (nomen dubium)


Locality: "In a light gray bed not far from the red bed which contained the remains of the typical specimens of Episcoposaurus haplocerus." Near wimdmill in the top posture 3 miles north of Dockum, Dickens County, Texas.

Horizon: Dockum Formation.


Age: Late Carnian-Early Norian Stage, Late Triassic Epoch, Late Triassic.

Material: Fragments of a skull and a few skeletal parts, dermal plates subquadrate.


Species: ? validus (MARSH, 1893) (nomen dubium)
Etymology: Latin, validum, “strong”.
= Belodon validus MARSH, 1893 (nomen dubium)
= Machaeroprosopus validus (MARSH, 1893) (nomen dubium)
= Phytosaurus validus (MARSH, 1893) (nomen dubium)

Holotype: Yale Museum No. 2138

Locality: The quarry of Orestes Wilcox, half a mile southwest from the station, Simsbury, Hartford County, Connecticut.

Horizon: Newark SuperGroup.


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

Material: Proximal portion of the right scapula.