(Scale bar is 1 cm.)
This species is the most common Eocene cassiduloid in Georgia. It is easily distinguished from R. gouldii by its more evenly rounded cross section, particularly the smoothly rounded lateral margins.
It is restricted to the Ocala Limestone, and is primarily found in the middle and upper part of that formation.
As with most cassiduloids, the shell suggests a preference for sand bottoms, and the species is virtually always found in such sediment.
AGE: LATE EOCENE
FORMATION: OCALA LIMESTONE
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