Bothriocidaris

noun

Both·​rio·​cid·​a·​ris

-ˈsidərə̇s

: 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

Etymology

New Latin, from bothri- + Cidaris

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