Subgenus: Longirostria ARKHANGELSKY, 1998
Etymology: Latin, Longus, “long” and Latin, Rostrum, “snout”: Long snout.

Species: longmani (WADE, 1988) ARKHANGELSKY, 1998 (Type)
Etymology:

Referred material:

KEAR, 2001

Locality: ‘Dunraven’ Station, near Hughenden, north-central Queensland State, Australia.

Horizon: Toolebuck Formation.

Biostratigraphy:

Age: Albian Stage, Upper Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

AM F98273: A near complete juvenile skull including in excess of 100 well preserved functional and replacement teeth from both upper and lower jaws.
Note: A single anterior dentary tooth with caries (tooth decay).