Early Miocene; Extinct.
Original Description (from Maury, 1910, p. 31-32):
"Shell small, depressed, trochiform, four-whorled, with eight slender spines at the periphery; surface of the whorls coarsely wrinkled just beneath the spines and finely wrinkled just above the spines. Between these wrinkled bands are four faint spirals generally seen only with a lens. Base rather flat with four or five raised threads, either smooth or slightly beaded.
Height of shell 3.5; greatest width 5 mm.
Specimens of this species were described in 1892, but not named by Dr. Dall to whom the shell is now dedicated.
Chipola marls, Bailey's Ferry, Florida.
Cornell University collection."
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