Tototlmimus is an extinct genus of ornithomimid dinosaur. "Effigia" is noted for its remarkable similarity to ornithomimid dinosaurs. "Tototlmimus" is a medium-sized ornithomimid. Indeterminate ornithomimid remains are known from the Upper Aguja Formation. Molnar speculates this may be the same kind of pathology afflicting an unidentified ornithomimid specimen. Rativates is a genus of ornithomimid theropod dinosaur from the Dinosaur Park Formation of Alberta. Unidentifiable ornithomimid remains are present and most commonly represented by toe bones. In 1960 Alexander Wetmore concluded that "Caenagnathus" was not a bird but an ornithomimid. Ornithomimid remains are not uncommon in the Hell Creek Formation. Local animals included hadrosaur and ornithomimid dinosaurs, and pterosaurs.. Like many other coelurosaurs, the ornithomimid hide was feathered rather than scaly. Other theropods included the tyrannosaur "Alectrosaurus", the ornithomimid "Garudimimus", and the dromaeosaur "Achillobator". An ornithomimid caudal vertebra has been discovered that has tooth drag marks attributed to "Saurornitholestes". Saurischians include the tyrannosaurid "Bistahieversor sealeyi"; the ornithomimid "Ornithomimus" sp.; and the troodontid "Saurornitholestes" "robustus".