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Gasatropod
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By I_gotta_rock
Taxonomy
Snail
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Neogastropoda
Family: Fasciolariidae
Genus: Hercorhyncus
Species: Hercorhyncus jerseyensis
Author Citation Weller, 1907
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Cretaceous
Sub Period: None
Epoch: Late
Stratigraphy
Monmouth Group
Mount Laurel Formation
Provenance
Collector: Heather Siple
Date Collected: 01/23/2021
Acquired by: Field Collection
Dimensions
Length: 12 mm
Width: 6 mm
Location
Reedy Point-- North Side
New Castle
Delaware
United States
Comments
As battered as this is, it is an unusually well-preserved specimen for this locality. Although there are brachiopods and bivalves that preserved as calcium carbonate at this locatlity, most gastropods in the Cretaceous of Delaware are either steinkerns or are preserved as battered phosphate with phosphate in-fill.
Gouging appears to have occurred after fossilization since the matrix does not completely fill the gouges. Most shell predation at Reedy Point came from clionia sponges and boring clams. This resembles neither.
This was found in loose sand from dredge spoils.
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