Cephalozoa

Cephalozoa; Temporal range: Ediacaran
	Fossil of Yorgia waggoneri, a cephalozoan found on the shores of the White Sea.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	†Proarticulata
Class:	†Cephalozoa; Fedonkin, 1985
Subtaxa
	†Andiva; †Ivovicia; †Yorgiidae Ivantsov, 2001; †Sprigginidae Glaessner, 1958;

Cephalozoa^[1] are an extinct class of primitive segmented marine organisms within the Phylum Proarticulata from the Ediacaran period. They possessed bilateral symmetry and were characterized by a thin, rounded body.

^ ^a ^b Ivantsov, A. Y. (2001). "Vendia and Other Precambrian "Arthropods"". Paleontological Journal. 35 (4): 335–343.
^ Fedonkin, Mikhail A. (2007). The Rise of Animals: Evolution and Diversification of the Kingdom Animalia. Baltimore (Md.): JHU Press. ISBN 978-0-8018-8679-9.

[Ivantsov2001-1] Ivantsov, A. Y. (2001). "Vendia and Other Precambrian "Arthropods"". Paleontological Journal. 35 (4): 335–343.

[Fedonkin_et_al_2008-2] Fedonkin, Mikhail A. (2007). The Rise of Animals: Evolution and Diversification of the Kingdom Animalia. Baltimore (Md.): JHU Press. ISBN 978-0-8018-8679-9.

[1]

[2]

Cephalozoa Temporal range: Ediacaran

Fossil of Yorgia waggoneri, a cephalozoan found on the shores of the White Sea.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	†Proarticulata
Class:	†Cephalozoa Fedonkin, 1985
Subtaxa
†Andiva †Ivovicia †Yorgiidae Ivantsov,^[1] 2001 †Sprigginidae Glaessner,^[2] 1958