Scientific Classification
| Kingdom: Animalia |
| Phylum: Mollusca |
| Class: Gastropoda |
| Order: Littorinimorpha |
| Family: Vermetidae |
| Genus: Thylacodes |
| Species: Thylacodes granifera (Say, 1824) |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Caloosahatchee Formation [Questionable/rare] |
| Nashua Formation [Uncommon] |
| Waccamaw Formation [Common] |
| Duplin Formation [Common] |
| Jackson Bluff Formation [Common] |
| Raysor Formation [Common] |
| Tamiami Formation (Pinecrest Beds) [Common] |
| Yorktown Formation [Common] |
| Yorktown Formation (Moore House Member) |
| Yorktown Formation (Upper) |
| Calvert Formation (Plum Point Member) |
| Chipola Formation |
Remarks
Common name: n/a
Synonymy:
Previously listed as Serpulorbis granifera on the Neogene Atlas of Ancient Life.
Type specimen, locality, and stratum: n/a
Other voucher specimens: n/a
Descriptions:
Original Description (from Say, 1824, p. 154):
“Covered with longitudinal, contiguous, slightly elevated, granulated striae.
Description. Shell subcylindric, contorted, inferior side flat; the whole surface is composed of very numerous, small, contiguous striae, each consisting of a single row of granules; these series are alternately smaller.
Diameter of the larger end three-tenths, of the largest specimen two-fifths of an inch.
The continuity of the tube within, is interrupted by oblique diaphragms. It sometimes approaches the spiral form, and one specimen has three complete volutions of much regularity.”
To access this description in its original formatting through the Biodiversity Heritage Library, click here.
Measurements: n/a
Other remarks: n/a
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 August 13, 2015. 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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