Species: gracilis VOROBYEVA, 1977
Etymology: Latin, gracilis, "slender."

Holotype: PIN 1494/52

Locality: Unknown, Russia?.

Horizon: Unknown.

Biostratigraphy:

Age: Late Devonian.

Material: Mandibular fragment.

Referred material:

Locality: Left bank of the Abava River, Velna Ala Locality, Kandava County, Latvia.

Horizon: Ogre Formation.

Biostratigraphy:

Age: Upper Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

PIN 1491/51: Anterior part of a right lower jaw ramus.