Scientific Classification
| Kingdom: Animalia |
| Phylum: Mollusca |
| Class: Gastropoda |
| Order: Neogastropoda |
| Family: Muricidae |
| Genus: Calotrophon |
| Species: Calotrophon attenuatus (Dall, 1890) |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Tamiami Formation (Pinecrest Beds) |
Remarks
Synonymy: Muricidae floridana var attenuata (Dall, 1890): p. 149.
Type Specimen: Unknown.
Original Description: From Dall, 1890 (p. 149): “Fossil in the Pliocene marls of the Caloosahatchie and Shell Creek.
One of the specimens shows a considerably more slender shell than the average of this species, and is more constricted behind the shoulder, with a smaller umbilical chink. At first sight it would be regarded as a distinct species. It measures 29 x 13 mm., when the ordinary form measures 29 x 16 mm. It may be called var. attenuata.”
Online Resources
References
Dall, W. D. 1890. Contributions to the Tertiary Fauna of Florida, with especial reference to the Miocene Silex-Beds of Tampa and the Pliocene beds of the Caloosahatchie River. Part I. Pulmonate, opisthobranchiate and orthodont gastropods. Transactions of the Wagner Free Institute of Science of Philadelphia, 3(1): 1-200, pls. 1-12. BHL
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Page History
Page edited by Kelsey K. Engelke. Reviewed by Jonathan R. Hendricks and first posted March 30, 2026.