Abstract

Fossil calcareous algae occur abundantly in limestone cores from the subsurface of Alabama, Arkansas, and Texas. They belong to the families Codiaceae and Dasycladaceae of the Chlorophyta (green algae). Described are Marinella lugeoni Pfender, Cayeuxia americana Johnson, n. sp., Bouenia? sp.?, Acicularia jurassica Johnson, n. sp., and cylindroporella texana Johnson, n. sp.

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