Full reference: R. Estes. 1981. Handbuch der Paläoherpetologie/Encyclopedia of Paleoherpetology. Part 2. Gymnophiona, Caudata. Gustav Fischer Verlag, Stuttgart xv-115
Parent taxon: Caudata according to R. Estes 1981
See also Barbera and Macuglia 1991 and Carroll 1988
Sister taxa: Amphiumoidea, Apricosiren, Batrachosauroididae, Bishara, Comonecturoides, Comonecturoides marshi, Egoria, Galverpeton, Heteroclitotriton, Hylaeobatrachus, Karauridae, Karauroidea, Kulgeriherpeton, Marmorerpeton, Noterpetontidae, Pancryptobrancha, Plethodontoidea, Ramonellus, Triassuridae, Urodela, Urupia
Subtaxa: Prosirenidae
Ecology: amphibious carnivore
Distribution:
• Cretaceous of Kazakhstan (1 collection), Spain (1), United States (6: Texas)
Total: 8 collections each including a single occurrence