Species: langstoni SUES, 1978
Etymology: In honor of Wann Langston.
Referred material:
CURRIE, 1987/1990
Locality: Dinosaur Provincial Park, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
RTMP 88.121.39: Partial skeleton.
Note: Pathology, has several unhealed tooth marks on the left dentary (TANKE & CURRIE, (1998) 2000)