Genus: Pachysauriscus KUHN, 1959 (nomen dubium)
Etymology: Pachysaurus + iscus, "little," to replace preoccupied Pachysaurus: “Little Pachysaurus”.
= Pachysaurops HUENE, 1961 (sic)
= Pachysaurus HUENE, 1908 non FITZINGER, 1843 (Pachysaurus [Tupinamhis] albigularis, Squamata,Varanidae)
Etymology: Greek, pachys, “thick” and Greek, sauros, "lizard": “Thick lizard”.

Species: ajax (HUENE, 1908) (nomen dubium)
Etymology:
= Pachysaurus ajax HUENE, 1908 (nomen dubium)
= Gresslyosaurus ajax HUENE, 1908 (nomen dubium)
= Pachysauriscus ajax HUENE, 1908 (nomen dubium)

Holotype: GPIT-PV-30790 (formerly GPIT C)

Locality: Wustenroth southeast of Lowenstein, Baden-Wurttemberg State, Germany.

Horizon: Trossigen Formation, Knollenmergel, Late Middle Triassic.

Biostratigraphy:

Age: Norian Stage, Middle Late Triassic Epoch, Late Triassic.

Material: Vertebrae (mostly incomplete) from the posterior half of the neck, most of the dorsal series but no sacrum, both pectoral girdles and forelimbs (but only parts of the hand), pieces of the femur (distal end), tibi and fibula.

Referred material:

Locality: Muhle near Trossingen, Baden-Wurttemberg State, Germany.

Horizon: Trossigen Formation, Knollenmergel, Late Middle Triassic.

Biostratigraphy:

Age: Norian Stage, Middle Late Triassic Epoch, Late Triassic.

Material:

SMNS 13200k: Pes.

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Species: magnus (HUENE, 1908) (nomen nudum)
Etymology:
= Pachysaurus magnus HUENE, 1908 (nomen nudum)
= Gresslyosaurus magnus HUENE, 1908 (nomen nudum)
= Pachysauriscus magnus HUENE, 1908 (nomen nudum)

Holotype: GPIT-PV-60298 (formerly GPIT D)

Locality: Brandklinge near Pfrondorf near Tubingen, Baden-Wurttemberg State, Germany.

Horizon: Trossigen Formation, Knollenmergel, Late Middle Triassic.

Biostratigraphy:

Age: Norian Stage, Middle Late Triassic Epoch, Late Triassic.

Material: Sacral vertebrae III (formerly GPIT-PV-11210), right humerus (formerly GPIT-PV-11212), fragmentary right ulna proximal end of left radius, distal end of left radius, distal end of left tibia, left metacarpal I, II, III and IV (GPIT-PV-60173 to 60176, formelry GPIT-PV-11300), phalanges.

Referred material:

Locality: Jachklinge, Germany.

Horizon:

Biostratigraphy:

Age: Late Triassic.

Material:

Number: Not given: 2 scapulae, humerus.

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