Conus
granozonatoides (Maury, 1917)
Description
Shell biconic, elongated, spire prominent, its early whorls coronate; whorls about thirteen, the nuclear smooth; the firsteight
post-nuclear ornamented by a row of many close-set tubercles near the base of
each volution and, posterior to the tubercles,
by several incised spiral lines, the tubercles become obsolete rather suddenly
on the third volution from the last, but the
spirals continue, becoming fainter until they fade out completely on the last
whorl; body whorl with a roundly angulated shoulder
whence it tapers to the base, marked by fine arcuate growth lines with occasional coarser
resting stages; spiral sculpture of coarse, slightly granular threads strongest
anteriorly, obsolete posteriorly; aperture narrow, outer lip when complete notched at the summit, then swinging
forward in a broad curve, retracted
at the base, length of shell, 55, greatest width 24 mm. (1).
Dr. Dall has very kindly examined this cone and
pronouced it near Guppy's C.
granozonatus.
Localities. — (Exp'd '16) Bluff 1, Cercado de Mao;
Zones A and G, Rio Gurabo,
near Los Quemados (1).
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Conus granozonatoidesmm. 55 x 24 |
Bibliografia
Consultata
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(1) - Maury, C. J., 1917. Santo
Domingo Type Sections and Fossils. Bulletins of American Paleontology, 5
(29 )
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