Conus
aegilops (Anderson & Hanna, 1925)
Description
Shell of medium size,
spire high, turrited, general form biconical;
sides of body whorl almost straight, marked by faint revolving striaa above,
but with stronger raised threads near the base;
angle of whorls, having a distinct beaded ridge, bordered below by an impressed
groove at the top of body whorl; nodes or beads 24 or more in number on a
complete whorl; shoulder concave above, slope rising in a collar on the preceding whorl; lines of growth
almost straight, but curving gently forward. The raised beaded cord on
the angle of the last whorl gives the shell somewhat the form and appearance of
an acorn of the large oaks (Quercus
lobata], growing at the type
locality of the species; hence the name. The length of the largest
specimen found is 32 mm.; diameter, 13 mm.; height of spire, when complete, about equal to diameter.
Type:
No. 809, Mus. Calif. Acad. Sci.;
collected by Bruce G. Martin at Loc. 245, (C. A. S. Coll.), Grapevine Creek,
Kern County, California. Cast of paratype,
No. 810, Mus. Calif. Acad. Sci.,
from Loc. 452 (U. C. Coll.) in Grapevine Canyon; Type Tejon Eocene.
This
species has a general similarity to C. cowlitzensis
Weaver and it is possible that Dickerson may have had one of the specimens
here described when he reported that form from the type locality of the Tejon
Group.
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Conus aegilopsType 809 |
Conus aegilops (1)
Plate 13 fig. 5: Type 809 Plate 13 Fig. 6: Type 810 |
Bibliografia Consultata
·
(1) -Anderson & Hanna (1925) “Fauna and Stratigraphic
Relations of the Tejon Eocene at the Type Locality in Kern County, California”