Afrophidia

Afrophidia
Temporal range: Late Cretaceous to Present
Boa (Boa constrictor)
Eastern racer (Coluber constrictor)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Infraorder: Alethinophidia
Clade: Afrophidia
Vidal, Delmas & Hedges, 2007
Subclades

Afrophidia is a clade of alethinophidian snakes comprising the groups Henophidia and Caenophidia, essentially making up the snakes people commonly associate with. The name refers to the deep split between Afrophidia and their sister taxon, Amerophidia, which originated in South American origin, and the afrophidians was recently hypothesized to represent a vicariant event of the breakup of Gondwanan South America and Africa.

Unlike the scolecophidians and amerophidians, which have evolved to be small, the afrophidians have evolved many larger species. This is also the group in which venom has been developed in several lines of snakes.

Below is a phylogeny of Afrophidia recovered from numerous phylogenetic work on snakes:

Afrophidia
Henophidia
Uropeltoidea
Pythonoidea

Xenopeltidae

Loxocemidae

Pythonidae

Booidea

Calabariidae

Sanziniidae

Charinidae*

Charininae

Ungaliophiinae

Bolyerioidea

Xenophidiidae

Bolyeriidae

Caenophidia
Anomalophioidea

Anomalophiidae

Russellophioidea

Russellophiidae

Acrochordoidea

†Nigerophiidae

Acrochordidae

†Palaeophiidae

Archaeophinae

Palaeophiinae

Colubroides

Xenodermidae

Colubriformes
Pareidae

Pareinae

Xylophiinae

Viperidae

Viperinae

Azemiopinae

Crotalinae

Homalopsidae

Elapoidea

Prosymnidae

Buhoma

Psammophiidae

Pseudaspidinae

Psammophiinae

Colubroidea
Colubridae

Sibynophiidae

Natricidae

Pseudoxenodontidae

Dipsadidae

Carphophiinae

Xenodontinae

Dipsadinae

   Venomous

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.