Full reference: K. -Q. Gao and R. C. Fox. 1991. New teiid lizards from the Upper Cretaceous Oldman Formation (Judithian) of southeastern Alberta, Canada, with a review of the Cretaceous record of teiids. Annals of Carnegie Museum 60(2):145-162
Parent taxon: Teiidae according to K. -Q. Gao and R. C. Fox 1996
See also Alifanov 1993, Alifanov 2000 and Gao and Fox 1991
Sister taxa: Alethesaurus quadratus, Alopoglossus, Amapasaurus, Anotosaura, Brevisaurus, Callopistinae, Cercosaura, Colobosaura, Colobosauroides, Conicodontosaurus, Crocodilurus, Echinosaura, Gerontoseps, Glyptogenys, Harmodontosaurus, Iguanavus exilis, Iguanavus teres, Iphisa, Kentropyx, Lanceosaurus compressus, Lanceosaurus hatcheri, Meyasaurus, Pantodactylus, Proctoporus, Ptilotodon, Teiinae, Teiini, Tupinambinae
Subtaxa: Sphenosiagon simplex
Type: Sphenosiagon simplex
Ecology: ground dwelling insectivore-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.