Hattopsis
Extinct genus of sea urchin
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Hattopsis is a genus of echinoid in the family Arbaciidae. It was described in 1992 from specimens in the UAE. There were 2 species described, though one was moved to another genus:[1] Hattopsis paucituberculatus (now in genus Noetlingaster as Noetlingaster monotuberculatus) and Hattopsis sphericus, both are known from the late maastrichtian.[3] Another species, Hattopsis muradi, was described in 2024.[4]
| Hattopsis Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Arbacioida |
| Family: | Arbaciidae |
| Genus: | †Hattopsis Ali, 1992[1] |
| Species: | †H. sphericus |
| Binomial name | |
| †Hattopsis sphericus Ali, 1992[2] | |