Conus
colombiensis (Weisbord, 1929)
Descrizione e caratteristiche:
This species is thin-shelled. There are about
12 whorls, of which the earlier live or six appear to he somewhat coronate; the
whorls are very convex, each succeeding one slighty over-lapping on the
preceding; sutures well incised; spire slightly elevated, concavely conical.
The body whorl is well rounded at the shoulder. From the middle portion of the
last whorl to the base there is a series of subequal revolving lines. These
become obsolete above.
Dimersions: Alt. 58 mm; Width 34 mm.
The Caribbean Miocene analogue of this shell is C. recognitus Guppy
which has been found in Costa Rica. Haiti and Jamaica. The body whorl of recognitus
is distinctly pyriform whereas the Colombian shell is conical in shape.
Otherwhise the two forms are very similar.
Locality. — Near Tubera, Dept. of Atlantico.
Age. — Middle Miocene.
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Conus colombiensis
Plate 5 fig. 12 mm. 58 x 34 |
Conus colombiensis
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Conus
colombiensis
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Bibliografia Consultata
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(1) - Weisbord, N. E., 1929. Miocene Mollusca of Northern
Columbia. Bulletins of American Paleontology, 14 (54 )
“Esquema estratigráfico de secuencias del
registro sedimentario del Cinturón Plegado
de San Jacinto, Caribe colombiano”
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