Ajacicyathida is a prehistoric order of sponges in the class Archaeocyatha. It was described in 1939, and is known from the Early Cambrian.[1]
| Ajacicyathida Temporal range:
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Clade: | †Archaeocyatha |
| Order: | †Ajacicyathida Bedford and Bedford 1939 |
| Suborders[1] | |
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Taxonomy
editIn addition to the suborders Ajacicyathina, Dokidocyathina, and Erismacoscinina, the following genera are placed incertae sedis within Ajacicyathida:[1]
- †Botocyathus
- †Kidjasocyathus Rozanov 1960
- †Procyathellus
- †Ptretiosocyathus Rozanov 1966
- †Stephanicyathus Voronova et al. 1987
References
edit- ^ a b c Ajacicyathida in the Paleobiology Database
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