Parent taxon: Macrostomata according to A. M. Albino and A. A. Carlini 2008
See also Carroll 1988, Cernansky et al. 2015, Estes 1964, Estes and Berberian 1970, Holman and Case 1988, Holman et al. 1991, Kuhn 1966, Lee and Scanlon 2002, Rage 1984, Rage et al. 2008, Scanlon and Lee 2000, Smith 2013 and Wilcox et al. 2002
Sister taxa: Amaru, Kataria, Loxocemus, Pachyrhachis, Podophis, Tropidophiidae, Xenopeltis
Subtaxa: Archaeophidae Boavus Boidae Conantophis Eoanilius Eoconstrictor Hibernophis Michauxophis Rageryx Ungaliophiidae
Ecology: carnivore
Distribution:
• Quaternary of Antigua and Barbuda (2 collections), Argentina (2), the Bahamas (7), Bolivia (1), Brazil (1), Cayman Islands (2), China (1), Cuba (1), the Dominican Republic (1), Eritrea (2), Ethiopia (1), Fiji (1), Greece (2), Guadeloupe (3), Israel (2), Madagascar (1), Niger (2), Palau (3), Sudan (2), Tanzania (5), Thailand (1), United States (3: California, Florida), Venezuela (2)
• Blancan of United States (1: Washington)
• Pliocene to Pleistocene of Venezuela (2)
• Pliocene of Argentina (1), Armenia (1), Ethiopia (1), France (1), Greece (1), Hungary (1), Italy (1), Kenya (1), Moldova (1), Myanmar (1), the Russian Federation (1), Tanzania (2), Turkey (1), Uganda (1), Ukraine (2), Venezuela (1)
• Hemphillian of United States (3: Nebraska, Tennessee, Texas)
• Miocene to Pliocene of Chad (1), Uganda (3)
• Miocene of Argentina (4), Austria (1), Brazil (2), Canada (1: Saskatchewan), Chad (1), China (1), Colombia (5), the Czech Republic (5), France (8), Germany (11), Greece (2), Hungary (1), India (3), Iraq (1), Italy (5), Kazakhstan (3), Mongolia (1), Morocco (1), Namibia (6), Pakistan (1), Peru (1), Portugal (1), Puerto Rico (1), the Russian Federation (1), Saudi Arabia (4), Spain (13), Thailand (1), Turkey (2), Ukraine (6), United States (27: Colorado, Delaware, Florida, Kansas, Nebraska, South Dakota, Texas, Wyoming), Venezuela (2)
• Harrisonian of United States (3: Nebraska)
• Oligocene to Miocene of Turkey (1)
• Oligocene of France (15), Germany (7), India (1), Mongolia (1), Peru (1), Tanzania (3), United States (16: Colorado, Florida, Nebraska, South Dakota, Wyoming)
• Eocene to Miocene of France (1)
• Eocene to Oligocene of Peru (1)
• Eocene of Argentina (6), Canada (2: Northwest Territories, Saskatchewan), Egypt (1), France (28), Germany (4), India (3), Kyrgyzstan (1), Mexico (1), Pakistan (1), Peru (1), Portugal (1), Switzerland (3), Thailand (2), the United Kingdom (5), United States (29: Alabama, California, Georgia, New Mexico, North Dakota, Utah, Wyoming), Uzbekistan (1)
• Paleocene to Eocene of Brazil (1)
• Paleocene of Bolivia (3), Colombia (1), France (1), Germany (1), Morocco (1), Togo (1)
• Cretaceous of Argentina (1), France (1), India (3), Madagascar (1), United States (2: Montana, Wyoming)
Total: 354 collections including 544 occurrences