Scientific Classification
| Kingdom: Animalia |
| Phylum: Mollusca |
| Class: Gastropoda |
| Order: Neogastropoda |
| Family: Conidae |
| Genus: Conus |
| Species: Conus adversarius Conrad, 1840 |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Caloosahatchee Formation [Abundant] |
| Nashua Formation [Common] |
| Waccamaw Formation [Common] |
| Duplin Formation [Common] |
| Duplin / Raysor Formations [Uncommon] |
| Intracoastal Formation [Questionable/rare] |
| Jackson Bluff Formation [Common] |
| Raysor Formation [Common] |
| Tamiami Formation (Buckingham Limestone) [Questionable/rare] |
| Tamiami Formation (Ochopee Limestone) [Common] |
| Tamiami Formation (Pinecrest Beds) [Abundant] |
| Yorktown Formation [Uncommon] |
| Goose Creek Formation [Common] |
Remarks
Common name: n/a
Synonymy: n/a
Type specimen, locality, and stratum: n/a
Other voucher specimens: n/a
Descriptions:
Original Description (from Conrad, 1840, p. 388):
“Shell sinistral, with obsolete spiral lines, except at base, where they are prominent; angle of body whorl, and base of the whorls of the spire carinated; the carina slightly tuberculated towards the apex; spire prominent. Length 2 1/2 inches.”
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Measurements: n/a
Other remarks:
Conus adversarius can be differentiated from all other cone shells (living or extinct) by its sinistral, or left-handed, shell coiling: when held with the apex pointing upwards and the aperture opening facing the viewer, the opening is on the left. All other cone shells have dextral, or right-handed shell coiling.
References: n/a
Online resources:
Page history:
Some of the content on this page was originally published on the Neogene Atlas of Ancient Life on April 22, 2014. It was developed by Jonathan R. Hendricks and colleagues and migrated here in 2026.
This page was last modified on October 28, 2026 by Jonathan R. Hendricks.
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