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Agnostus

noun Ag·nos·tus \ ag-ˈnä-stəs \

Definition of Agnostus

:a genus of small blind Cambrian and Ordovician trilobites that with a number of related forms in which the cephalon and pygidium are almost indistinguishable constitute an order (Agnostida) of highly specialized forms

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Origin and Etymology of agnostus

borrowed from New Latin, borrowed from Greek ágnōstos “unknown”

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