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Definition of Parkeria
1. n. A genus of large arenaceous fossil Foraminifera found in the Cretaceous rocks. The species are globular, or nearly so, and are of all sizes up to that of a tennis ball.
Medical Definition of Parkeria
1. 
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1. n. A genus of large arenaceous fossil Foraminifera found in the Cretaceous rocks. The species are globular, or nearly so, and are of all sizes up to that of a tennis ball.
1.