Full reference: D. K. Zelenitsky, L. V. Hills, and P. J. Currie. 1996. Parataxonomic classification of ornithoid eggshell fragments from the Oldman Formation (Judith River Group; Upper Cretaceous), southern Alberta. Canadian Journal of Earth Sciences 33:1655-1667
Parent taxon: Theropoda according to D. K. Zelenitsky et al. 1996
Sister taxa: Ageroolithus, Allosauroidea, Allosaurus sibiricus, Altispinax, Anchisauripodidae, Archaeornithoididae, Avalonia, Avipoda, Boutakioutichnium, Bradycnemidae, Byakudansauropus, Calamospondylus, Carmelopodus, Chindesaurus, Coeluroidae, Coeluroidea, Compsognatha, Corpulentapus, Daemonosaurus, Deinocheirosauria, Deinodontia, Dilophosaurus, Dispersituberoolithus, Elaphrosaurus iguidiensis, Elongatoolithidae, Embasaurus, Eodromaeus, Erythrovenator, Eubrontes titanopelobatidus, Eubrontidae, Eutynichnium, Fenestrosaurus, Filichnites, Fuscinapedis, Gigandipodidae, Grallatoridae, Gypsichnites, Hadrosaurichnus, Halticosaurus, Herrerasauridae, Himeoolithus, Hispanosauropus, Hunanpus, Iberosauripus, Iranosauripus, Irenesauripus, Itsukisauropus, Jialingpus, Kakuru, Kakuru kujani, Kalohipus, Kayentapus, Kuwajimasauropus, Laevisoolithidae, Massospondylus rawesi, Megalosauropus, Megalosaurus cloacinus, Megalosaurus hungaricus, Megalosaurus insignis, Megalosaurus lydekkeri, Megalosaurus obtusus, Megalosaurus pombali, Moraesichnium, Neotheropoda, Nipponoolithus, Oblongoolithidae, Orcauichnites, Ordexallopus, Ornithoides, Ornithopodichnites, Ostafrikasaurus, Ostendichnus, Ovoraptor, Ozraptor, Paleotheropoda, Parachirotheriidae, Paracorpulentapus, Paragrallator, Picunichnus, Plectropus, Poekilopleuron schmidti, Protoavis, Prototrisauropodiscus, Reticuloolithus, Salfitichnus, Sarmientichnus, Saurocephalus monasterii, Sauropodidae, Segisauridae, Selenichnidae, Selenichnus, Shuangbaisaurus, Siamopodus, Sigilmassasauridae, Sinosaurus, Spinosauria, Stillatuberoolithus, Symphypoda, Szechuanosaurus, Tawa, Tetanurae, Therangospodus, Triprismatoolithus, Trisauropodiscidae, Tubercuoolithus, Unenlagiidae, Vitakrisauria, Wakinosaurus, Wakinyantanka, Walgettosuchus, Wildeichnus, Xiangxipus, Yangtzepus, Yaverlandia, Zanclodon cambrensis, Zanclodon silesiacus, Zanclodontoidae, Zhengichnus, Zhengichnus jinningensis
Subtaxa: Tristraguloolithus cracioides
Type: Tristraguloolithus cracioides
Ecology: ground dwelling carnivore
Distribution:
• Cretaceous of Canada (3: Alberta collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.