Genus: Aniksosaurus MARTINEZ & NOVAS, 2006
Etymology: Greek, aniksi, 'spring', referring to September 21st (i.e. teh beginning of the spring in the Southern Hemisphere), the day when teh theropod was found, and Greek, sauros, 'lizard': Spring lizard.

Species: darwini MARTINEZ & NOVAS, 2006
Etymology: In honor of the great naturalist Charles Darwin, who visited Patagonia in 1832-1833, inspiring him toe reach clearer interpretations of the evolution of life that changed human thought forever.

Holotype: MDT-PV 1/48

Locality: Laguna Palacios Ranch, approximately 30 km north of Buen Pasto, 280 km west of Comodoro Rivadavia, in south-central Chubut Province, Argentina.

Horizon: Lower member, Bajo Barreal Formation.

Biostratigraphy:

Age: Early Late Cretaceous.

Hypodigm:

MDT-PV 1/23 (note: with crocodyliforme bite marks, CASAL, MARTINEZ, IBIRICU, GONZALEZ-RIGA, & FOIX, 2013): Left femora.