Genus: Collilongus BORSUK-BIALYNICKA & SENNIKOV, 2009
Etymology: Latin, collum, "neck" and Latin, longus, "long."

Species: rarus BORSUK-BIALYNICKA & SENNIKOV, 2009
Etymology: Latin, rarus, "rare"; rare in Czatkowice 1 material.

Holotype: ZPAL RV/580

Locality: Limestone quarry, Czatkowice 1, Krakow Upland region, Poland.

Horizon:

Biostratigraphy:

Age: Latest Olenekian, Scythian Epoch, Early Triassic.

Material: Cervical vertebra.

Referred material:

ZPAL RV/579-581, 596: 4 cervical vertebrae.

ZPAL RV/583, 594, 661-663, 1362-1368: 12 caudals.

ZPAL RV/584, 585, 588, 694: ?4 dorsal vertebrae.

ZPAL RV/1369: Sacral.