Species: impressus AGASSIZ, 1833
Etymology:

Holotype:

Locality: Zweibrucken, Palatinate, Bayern (Bavaria) State, Germany.

Horizon: Bunter.

Biostratigraphy:

Age: Scythian Epoch, Early Triassic.

Material: 6 Teeth.
Note: 4 teeth belong to the fish Sargodon tomicus.

Referred material:

Locality: Bayreuth, Bayern (Bavaria) State, Germany.

Horizon: Muschelkalk.

Biostratigraphy:

Age: Mid Triassic Epoch, Middle Triassic.

Material:

BMNH 28451: A palatine or mandibular tooth.

BMNH 1330: A palatine or mandibular tooth.

BMNH 32781g: 2 palatine or mandibular teeth.

BMNH 32781h: 2 maxillary teeth.

BMNH 1328-1329: 5 small maxillary teeth.

BMNH 1335: The crowns of 3 imperfect anterior teeth.