Alternative spelling: Ambystomoidea
Parent taxon: Urodela according to K.-Q. Gao and N. H. Shubin 2001
See also Carroll 1988, Estes 1981, Estes and Berberian 1970, Kuhn 1946, Naylor and Krause 1981 and Shishkin 2000
Sister taxa: Amphiumidae, Cryptobranchoidea, Hemitrypus, Hynobiidae, Iridotriton, Kiyatriton, Laccotriton, Liaoxitriton, Meantes, Menopomidae, Neocaudata, Nesovtriton, Nezpercius, Plethodontidae, Pleurodelidae, Polysemia, Proteidae, Rhyacotritonidae, Salamandra, Salamandridae, Salamandroidea, Seminobatrachus, Sinerpeton, Sirenidae, Thoriidae, Valdotriton
Subtaxa: Ambystomatidae Dicamptodontidae Scapherpetontidae
Ecology: amphibious carnivore
Distribution:
• Quaternary of Mexico (1 collection), United States (71: Alabama, Arizona, California, Colorado, Florida, Georgia, Kansas, Maryland, New Mexico, South Dakota, Texas, Virginia, West Virginia)
• Blancan of United States (3: Arizona, Nebraska)
• Hemphillian of United States (2: Kansas, Tennessee)
• Miocene of Germany (1), United States (12: Kansas, Nebraska, South Dakota)
• Eocene of Canada (2: Northwest Territories, Saskatchewan), United States (2: North Dakota, Wyoming)
• Clarkforkian of United States (3: Wyoming)
• Paleocene of Canada (7: Alberta, Saskatchewan), France (1), United States (22: Colorado, Montana, North Dakota, Wyoming)
• Cretaceous of Canada (72: Alberta, Saskatchewan), Mexico (1), United States (97: Colorado, Montana, North Dakota, South Dakota, Texas, Utah, Wyoming), Uzbekistan (3)
• Jurassic of Portugal (1)
Total: 301 collections including 352 occurrences