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Mercenaria permagna
Images: 
By goatinformationist
Taxonomy
Pismo clam
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Veneroida
Family: Veneridae
Genus: Mercenaria
Species: Mercenaria permagna
Author Citation Conrad, 1838
Geological Time Scale
Eon: Phanerozoic
Era: Cenozoic
Period: Quaternary
Sub Period: None
Epoch: Pleistocene
Stratigraphy
Anastasia Formation
Provenance
Collector: George Prince
Date Collected: 08/29/2009
Acquired by: Field Collection
Dimensions
Length: 10 cm
Width: 8 cm
Height: 8 cm
Thickness: 4 cm
Location
Ruck's Pit
Okeechobee County
Florida
United States
Comments
I am currently down to about 100 specimens and will include more pictures when I pull them out of the basement for that purpose.
They are heavily traded and many of the better specimens are sought after by collectors and museums. I know that they have been around
the Tucson show for more than ten years. Called Mercenaria Permagna with dogtooth calcite spar inclusions.
The pit is currently closed but spoil piles are still available to the collector for a fee.
More information on this fossil type is available at: SEGS-Guidebook-45.pdf, (State of Florida) online. Or search google images using: "calcite clams".
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