Hemipneustidae
Hemipneustidae is an extinct family of sea urchins.[1][2]
| Hemipneustidae | |
|---|---|
 | |
| Fossils of Toxopatagus | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Superorder: | |
| Order: | |
| Family: | Hemipneustidae Lambert 1917 |
Genera
- Hemipneustes L. Agassiz, 1835 †
- Medjesia Jeffery, 1997 †
- Opisopneustes Gauthier, 1889 †
- Plesiohemipneustes Smith & Wright, 2003 †
- Toxopatagus Pomel, 1883 †
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gollark: In a philosophy club thing at school, someone was talking about some sort of dystopian world where people were assigned numbers instead of names or something.
gollark: Your osmarksUUID, if you're curious, is `36d29cdb-55dd-4217-b371-67c0d578a639`.
gollark: They are equally real. Your osmarksUUID™ is more realerer.
gollark: Your osmarks.tk-assigned UUID.
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