: a genus (coextensive with the family Bothriocidaridae and order Bothriocidaroida) of extinct primitive simple sea urchins that somewhat resemble Cystoidea and are known from the Ordovician of the Russo-Baltic area

Word History


New Latin, from bothri- + Cidaris

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Dictionary Entries Near Bothriocidaris

Cite this Entry

“Bothriocidaris.” Dictionary, Merriam-Webster, Accessed 6 Dec. 2023.

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