Hemipneustidae
| Hemipneustidae | |
|---|---|
 | |
| Fossils of Toxopatagus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Superorder: | Atelostomata |
| Order: | Holasteroida |
| Family: | Hemipneustidae Lambert 1917 |
Hemipneustidae is an extinct family of sea urchins. [1][2]
Genera
- Hemipneustes L. Agassiz, 1835 †
- Medjesia Jeffery, 1997 †
- Opisopneustes Gauthier, 1889 †
- Plesiohemipneustes Smith & Wright, 2003 †
- Toxopatagus Pomel, 1883 †
References
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