Genus: Gamerabaena LYSON & JOYCE, 2010
Etymology: 'Gamera' refers to the fictional, fire-breathing turtle from the 1965 movie Gamera, in allusion to his fire breathing capabilities and the Hell Creek Formation, plus 'baena'.

Species: sonsalla LYSON & JOYCE, 2010
Etymology: In honors of Donald and Margaret Sonsalla, on whose land the specimen was found and who graciously donated in the fossil to the North Dakota Heritage Center: it is formed here explicitly as a noun in apposition, in accordance with article 31.1 of the International Code of Zoological Nomenclature, Fourth Edition (International Commission on Zoological Nomenclature, 1999).

Holotype: ND 06-14.1

Locality: Bucklin Township, Slope County, near Marmarth, North Dakota.

Note: Qualified researchers can obtain more detailed locality information from the North Dakota Heritage Center.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: A well preserved, incomplete skull without mandible.