Early Miocene; Extinct.
Original Description (from Maury, 1910, p. 11-12):
"Shell short, fusiform, whorls seven of which the two nuclear are smooth; body-whorl more than half the length of the shell; transverse sculpture of prominent, somewhat flexuous ribs (eight on the last whorl including the varix at the aperture); spiral sculpture of exceedingly fine raised threads, visible only with a lens; aperture narrow; interior smooth.
Length of shell 5; of aperture 2; of body whorl 3.5; greatest width 2 mm.
Oligocene of the Chapola marls, Bailey's Ferry, Florida.
Cornell University collection."
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