ammonites
Ateleaspis Ritchie 1967 (lancelet)

Cephalaspidomorphi

Parent taxon: Cephalaspidomorphi according to J. A. Long 2011

Sister taxa: Atelaspidiformes, Birkeniiformes, Cephalaspidida, Cephalaspidiformes, Galeaspidiformes, Pituriaspidiformes

Subtaxa: none

Ecology: fast-moving nektonic carnivore