Protomonaxonida

Protomonaxonida Temporal range: 516.0–247 Ma PreꞒ Ꞓ O S D C P T J K Pg N [1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Porifera
Class:	Demospongiae
Order:	†Protomonaxonida Finks et al. 2004[2]
Families
†Choiidae †Halichondritidae †Hamptoniidae †Hazeliidae †Leptomitidae †Lobatospongia †Piraniidae †Takakkawiidae †Ulospongiellidae †Wapkiidae

Protomonaxonida is an extinct order of sea sponges. It is a paraphyletic group gathering the most ancient species from the Burgess Shale to modern sponges.