Archaeophis

Archaeophis
Temporal range: Eocene
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Palaeophiidae
Genus: Archaeophis
Massalongo, 1859
Species:
A. proavus
Binomial name
Archaeophis proavus
Massalongo, 1859

Archaeophis proavus is an extinct species of marine palaeophiid snake from the Eocene of Monte Bolca, Italy. It had the highest vertebral count known among snakes, with 565 vertebrae.

Massalongo also described a second species in the genus, A. bolcensis, but this was subsequently placed in the new genus Anomalophis. Another species, A. turkmenicus from Turkmenistan, is also thought to most likely belong to a distinct, currently undescribed genus.