Pseudodiadematidae are members of the phylum Echinodermata. Their fossil remains date to the Cretaceous period (144 - 66.4 MYA). Its child geniuses are Acanthechinopsis, Acrocidaris, Acrotiaris and Aplodiadema.[citation needed]
| Pseudodiadematidae | |
|---|---|
| |
| Acrocidaris nobilis | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | †Hemicidaroida |
| Family: | †Pseudodiadematidae |
External linksEdit
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