Genus: Kryoparvus RICH, TRUSLER, KOOL, PICKERING, EVANS, SIU, MAKSIMENKO, KUNDRATE, GOSTLING, MORTON & VICKERS-RICH, 2020
Etymology: Greek, kryo, "cold" and Latin, parvus, "small." Small, cold animal in allusion to tis small size of this mammal that lived in a polar environment.

Species: gerriti RICH, TRUSLER, KOOL, PICKERING, EVANS, SIU, MAKSIMENKO, KUNDRATE, GOSTLING, MORTON & VICKERS-RICH, 2020
Etymology: In honor of Gerrit Kool, who found the holoytpe in 2001.

Holotype: NMV P210087

Locality: Flat Rocks fossil site on the marine shore platform in the Bunurong Marine Park near Iverloch, 38°39'40+-02"S, 145°40'52+-03"E, World Geodetic Standard 1984, Victoria State, Australia.

Horizon: Wonthaggi Formation, Strezelecki Group.

Biostratigraphy:

Age: Aptain Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Partial right mandible with m2-3, talonid region of m1, three premolar alveoli, ascending ramus complete in anterior region, ventral margin of antular process complete to its distal extremity.

Referred material:

NMV P212940: OLeft ramus with m2-3, roots of m1, ramus extends anteriorly far enough to contain alveoli for as many as three single-rooted premolars.