Protostome

Protostomes Temporal range: Ediacaran - Recent PreЄ Є O S D C P T J K Pg N
A centipede (Ecdysozoa)
Scientific classification
Kinrick:	Animalia
Subkinrick:	Eumetazoa
Clade:	Bilateria
Clade:	Nephrozoa
(unranked):	Protostomia Grobben, 1908
Superphyla
Ecdysozoa Spiralia Chaetognatha

Protostomia (frae Greek πρωτο- proto- "first" an στόμα stoma "mooth") is a clade o ainimals.