Alternative combination: Laelaps aquilunguis
Full reference: E. D. Cope. 1866. [On the remains of a gigantic extinct dinosaur, from the Cretaceous Green Sand of New Jersey]. Proceedings of the Academy of Natural Sciences of Philadelphia 18:275-279
Sister taxa: none
Type specimen: ANSP 9995, a partial skeleton (mandible, clavicles, both humeri, femur, tibia, fibula, phalanges, lumbar, sacral, and caudal vertebrae). Its type locality is West Jersey Marl Company's Pit, Barnsboro, which is in a Maastrichtian terrestrial sandstone/marl in the New Egypt Formation of New Jersey.
Ecology: ground dwelling carnivore
Average measurements (in mm): femur length 787.4, femur circumference 279.4, fibula length 787.0, fibula circumference 270.0, humerus length 304.8, humerus circumference 136.5, tibia length 830.0, tibia circumference 258.0
Estimated body mass: 995.6 kg based on femur length