Genus: Palacrodon BROOM, 1906
Etymology:
= Fremouwsaurus GOW, 1992
Etymology: After the Early Triassic Antarctic Fremouw Formation from which the specimen was collected.

Species: browni BROOM, 1906
Etymology:

Holotype: SAM-PK 5871

Locality: Aliwal North, Eastern Cape Province, South Africa.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Cynognathus zone.

Age: Spathian Stage, uppermost Scythian Epoch to Anisian Stage, lowermost Mid Triassic Epoch, Early to Middle Triassic.

Material: Fragmentary dentary.

Note: Broom (1906) placed Palacrodon in Rhynchocephalia; Malan (1963) disagreed and suggested it was either a lizard or procolophonid. Gow (1999) synonymized Fremouwsaurus geludens (Gow, 1992) with Palacrodon. Kligman et al. (2018) place it within Diapsida.

Referred material:

GOW, 1999

BP/1/5672: Right maxillary fragment bearing 4 acrodont teeth and a dentary fragment bearing 5. May belong to the type.
Note: = Family: Palacrodontidae HAUGHTON 1924

 

KLIGMAN, MARSH & PARKER, 2018

Locality: PFV 396, the "coprolite layer" near Billing's Gap, Petrified Forest National Monument, Apache County, Arizona.

Note: Exact locality informatin is on file at Petrified Forest National Park and available to qualified researchers.

Horizon: Upper Blue Mesa Member, Chinle Formation.

Biostratigraphy: Adamanian Land Vertebrate Estimated Holochron (Adamanian Land Vertebrate Faunachron).

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

Material:

PEFO 37247: Fragment of a right maxilla with two complete teeth and two partial teeth.


= Fremouwsaurus geludens GOW, 1992
Etymology: Latin gelu = front and dens = Teeth: the name is suggested because of the remarkable resemblance of the cheek teeth to blobs of decorative frosting on a cake.

Holotype: BP/1/5296

Locality: Kitching Ridge, vicinity of Shackleton Glacier, which is about 225 km, east by south of Coalsack Bluff, Queen Maud Mountains, East Antarctica, Antarctica.

Horizon: Fremouv Formation.

Biostratigraphy:

Age: Anisian Stage, Lower Mid Triassic Epoch, Early Middle Triassic.

Material: Partial skull and lower jaw an some fragments of postcranial skeleton.
Note: = Family: Fremouwsauridae GOW, 1992