Scientific Classification
| Kingdom: Animalia |
| Phylum: Mollusca |
| Class: Gastropoda |
| Order: Littorinimorpha |
| Family: Xenophoridae |
| Genus: Xenophora |
| Species: Xenophora floridana Mansfield, 1930 |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Bermont Formation [Questionable/rare] |
| Caloosahatchee Formation [Common] |
| Jackson Bluff Formation [Common] |
| Tamiami Formation [Questionable/rare] |
| Tamiami Formation (Pinecrest Beds) [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 Mansfield, 1930, p. 121-122):
“The new subspecies is more closely related to Xenophora delecta (Guppy) than to Xenophora conchyliophora (Born). It differs from X. delecta (Guppy) in having a proportionately higher shell and a less granulose ornamentation on the base. The shell is more profusely loaded with shells and other objects than X. delecta and reveals far less protractive undulating or wrinkled lines. The new subspecies differs from X. conchyliophora in having a larger umbilicus and stronger, more persistent concentric weakly beaded spiral on the base.
The new subspecies attains a rather large size. The largest and most nearly perfect shell is about 40 mm. high and 50 mm. in diameter. The umbilicus is rather large and is partly concealed by the expanded margin of the inner lip.
Type (U. S. N. M. Cat. No. 370438) measures: Altitude, 30 mm.; greatest diameter, 38 mm.
Occurrence: Harveys Creek, half a mile above abandoned mill, Leon County, Fla. (common), type locality (collections by T. W. Vaughan, the Florida Geological Survey, and W. C. Mansfield); borrow pit, near Jackson Bluff, Leon County (1 immature specimen, collected by the Florida Geological Survey).”
To access this description in its original formatting through Google Books, 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 February 6, 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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