Noun Acritarch Definition and Examples


Noun:

Acritarch

Pronunciation:

/ˈakrɪtɑːk/

Definition:
1.

noun

Any hollow unicellular organic microfossil which is not otherwise categorized or classified.


    noun, Paleontology.

    1. any of various microfossils, of unknown biological affinities, having a central cavity enclosed by a wall of chiefly organic composition.

    Origin:
    1960s. From ancient Greek ἄκριτος undistinguishable, doubtful + -arch.

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