Bothriocidaris
Appearance
Bothriocidaris Temporal range:
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Genus: | Bothriocidaris Eichwald, 1860
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Bothriocidaris (meaning best furrow or best trench) is an extinct genus of echinoid from the Ordovician. It grew to 6 inches (150 mm) in size and fed on plankton.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Britannica_Echinoderma_5.jpg/400px-Britannica_Echinoderma_5.jpg)
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