Bothriocidaris
| Bothriocidaris Temporal range:
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|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | Bothriocidaroida
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| Family: | Bothriocidaridae
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| Genus: | Bothriocidaris Eichwald, 1860
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Bothriocidaris is an extinct genus of echinoid from the Ordovician. It grew to 1.6 centimetres (0.63 in) in size[1] and fed on plankton.

References
- Dinosaurs to Dodos: An Encyclopedia of Extinct Animals by Don Lessem and Jan Sovak
- Parker, Steve. Dinosaurus: the complete guide to dinosaurs. Firefly Books Inc, 2003. Pg. 55