- Source: Blastozoa
Blastozoa is a subphylum of extinct echinoderms characterized by the presence of specialized respiratory structures and brachiole plates used for feeding. It ranged from the Cambrian to the Permian.
A significant species has been found at the Zaouïa Formation.
References
External links
Harvard: Subphylum Blastozoa Archived 2017-12-05 at the Wayback Machine