†family Ancalagonidae Conway Morris 1977 (priapulid worm)
Archaeopriapulida - Ancalagonidae
Full reference: S. Conway Morris. 1977. Fossil priapulid worms. Special Papers in Palaeontology 20
Parent taxon: Archaeopriapulida according to S. Conway Morris 1977
Sister taxa: Fieldiidae, Lecythioscopa, Miskoidae, Ottoidae, Scolecofurca, Selkirkiidae, Singuuriqia
Subtaxa: none
Type: Ancalagon
Ecology: facultatively mobile shallow infaunal carnivore
Distribution: there are no occurrences of Ancalagonidae in the database