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Species / Anchura Coffea

Anchura Coffea

Stromboidea


Original Description of Anchura coffea by Dockery, 1993:

  • "The protoconch and juvenile whorls are unknown. The teleoconch of the most complete specimen consists of seven and one half whorls. The spire is sculptured with axial ribs and spiral lirae that become more broadly spaced with growth. Axial ribs are concave toward the aperture on the early whorls, become somewhat sinuous on the latter whorls, and are diminished on the body whorl where they produce nodes on the spiral lirae but are not evident in the interspaces. The penultimate whorl has nineteen axial ribs and five closely spaced lirae on the lower half, the lower one of which is visible just above the suture and the upper of which form a carina on the body whorl. Above these are three broadly spaced lirae which also appear on the body whorl between the carina and suture. The carina of the body whorl extends as a ridge onto the outer lip and up the lip's posterior rostral spine. The outer lip's shank is narrow and has a secondary spine on its upper margin, a long and narrow posterior arm (which is broken on the type), a spur-like anterior arm, and a fairly straight distal margin. The interior of the shank has a narrow central channel that continues up the posterior arm. The inner lip has a very thick callus. The aperture is lenticular. The base is not completely known but is sculptured on the upper part below the carina with five primary spiral lirae. Secondary lirae occur between the upper two and lower two primaries and below the prmaries."

Locus typicus:

  • Griffin pit on the east side of the Friendship-Pratt Road and on the south valley wall of Twenty Mile Creek, Lee County, Mississippi, USA

Stratum typicum:

  • Chapelville Horizon of the Tupelo Tongue of the Coffee Sand, Campanian, Cretaceous

References:


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