Scientific Classification
| Kingdom: Animalia |
| Phylum: Mollusca |
| Class: Bivalvia |
| Order: Pectinida |
| Family: Plicatulidae |
| Genus: Plicatula |
| Species: Plicatula marginata Say, 1824 |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Anastasia Formation [Questionable/rare] |
| Bermont Formation [Common] |
| Canepatch Formation [Questionable/rare] |
| Bear Bluff Formation [Questionable/rare] |
| Caloosahatchee Formation [Common] |
| Chowan River Formation [Uncommon] |
| Nashua Formation [Uncommon] |
| Waccamaw Formation [Abundant] |
| Croatan Formation [Questionable/rare] |
| Duplin Formation [Common] |
| Duplin / Raysor Formations [Uncommon] |
| Jackson Bluff Formation [Common] |
| Raysor Formation [Common] |
| Tamiami Formation (Buckingham Limestone) [Questionable/rare] |
| Tamiami Formation (Murdock Station Member) |
| Tamiami Formation (Lower) [Uncommon] |
| Tamiami Formation (Pinecrest Beds) [Abundant] |
| Yorktown Formation [Common] |
| Yorktown Formation (Moore House Member) |
| Yorktown Formation (Lower) |
Remarks
Common name: n/a
Synonymy: n/a
Type specimen, locality, and stratum: n/a
Other voucher specimens: n/a
Descriptions:
Original Description (from Say, 1824, p. 136-137):
“Shell ovate-cuneiform, somewhat arcuated at base; with about three much elevated folds, producing very profound undulations on the edge of the shell; the intermediate fold is bifid; the whole surface is marked by rather gross concentric wrinkles; inner margin dusky or blackish, with a series of granules on one valve, received into corresponding cavities in the opposite valve.
Length one inch and a fifth, breadth one inch.
This species is very distinct from the P. plicata, Linn. of the West Indies, and from that of the East Indies, hitherto confounded with the plicata, but to which Lamark’s name of gibbosa may be transferred.
Of the known fossil species, it seems to approach nearest to the angulata, Lam. but the folds are neither squamous nor angulated.”
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Measurements: n/a
Other remarks: n/a
References: n/a
Online resources: n/a
Page history:
Some of the content on this page was originally published on the Neogene Atlas of Ancient Life on September 4, 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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