Agassizocrinus

noun

Ag·as·siz·o·cri·nus | \ ˌa-gə-ˌsē(z)-ə-ˈkrī-nəs\

Definition of Agassizocrinus

: a genus of fossil crinoids known chiefly from Mississippian formations of North America and characterized by a thick-walled ovoid cup

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The first known use of Agassizocrinus was in 1859

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