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I erroneously identified this earlier as the similar Turritella plebia, until looking at one more reference! Mariacolpus octonaria is an index fossil for the Drum Cliff Member of the Choptank Formation. Donated to the Delaware Museum of Natural History
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- calvert cliffs
- chesapeake bay
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Donated to the Delaware Museum of Natural History. According to L.W. Ward, 1998 ( Full Reference : L. W. Ward. 1998. Mollusks from the Lower Miocene Pollack Farm Site, Kenty County, Delaware: A preliminary analysis. Geology and paleontology of the lower Miocene Pollack Farm Fossil Site, Delaware [A. Miller/A. Hendy/A. Hendy] ) , the Genus was re-assigned from Fissuridae to Diodora.
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- calvert cliffs
- cheasapeake bay
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This specimen and dozens like it were collected from matrix material deposited in the waters of the Chesapeake Bay by a landslide. It is one of only a few species that consistently survived intact in the matrix samples I collected. Most specimens were single, unbroken valves, but several had both valves together and intact. A. tisphila is considered the most abundant find in the Choptank Formation. It is an index fossil for the Drum Cliff Member. This specimen was donated to the Delaware Museum of Natural History.
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- astarte
- calvert cliffs
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Another common find near Matoaka Beach Cabins, D. elnia is an index fossil for the Drumcliff Member. This one resides in the Delaware Museum of Natural History.
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Another common find near Matoaka Beach Cabins, this is an index fossil of the Drum Cliff Member of the Choptank Formation. This specimen was donated to the Delaware Museum of Natural History.
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- calvert cliffs
- chesapeake bay
- (and 9 more)
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A reasonably common find near Matoaka Beach Cabins. This was donated to the Delaware Museum of Natural History.
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- calvert claffs
- chesapeake bay
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Found near Matoaka Beach Cabins. Donated to the Delaware Museum of Natural History.
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- calvert cliffs
- chesapeake bay
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Although I have collected this species from Choptank Formation matrix, this one was found on the beach. The red staining suggests it may have been from another formation as the Choptank sand at St Leonard is gray.
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- calvert cliffs
- choptank
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Found at the Beach near Matoaka Cabins, E. marylandica is an index fossil of the Boston Cliffs Member of the Choptank Formation. The genus for this animal bounces back and forth between Marvacrassatella and Eucrassatella. WoRMS lists it as being re-assigned to the Eucrassatella genus. As of this update (November 8, 2017), the Eucrassatella genus has been restricted only to Indopacific species, so the genus was reverted to Marvacrassatella. This specimen was donated to the Delaware Museum of Natural History.
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- calvert cliffs
- chesapeake bay
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Although there are oysters littering the beach, I would hesitate to call any one of them anything other than modern. The fossilized oysters of this type retained their colors remarkably well. This shell was excavated from a lump of matrix deposited in the Chesapeake Bay after a landslide. This specimen was donated to the Delaware Museum of Natural History.
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- calvert cliffs
- choptank
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Found on the beach at near Matoaka Beach Cabins. Donated to the Delaware Museum of Natural History. Genus reassigned from Lemnitina.
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- calvert claiffs
- leanoard
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This specimen and dozens like it were collected from matrix material deposited in the waters of the Chesapeake Bay by a landslide. It is one of only a few species that consistently survived intact in the matrix samples I collected. These are also common finds loose on the beach. This specimen was donated to the Delaware Museum of Natural History.
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- calvert cliffs
- choptank
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(and 8 more)
Tagged with:
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This specimen and dozens like it were collected from matrix material deposited in the waters of the Chesapeake Bay by a landslide. It is one of only a few species that consistently survived intact in the matrix samples I collected. Most specimens were single, unbroken valves, but one did have both valves together and intact. This specimen was donated to the Delaware Museum of Natural History.
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- calvert cliffs
- choptank
- (and 7 more)
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Collected from a lump of matrix deposited in the Chesapeake Bay by landslide activity. It's one of only three I have been able to collect that were intact enough to identify. Donated to the Delaware Museum of Natural History.
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- bivalve
- calvert cliffs
- (and 8 more)
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This specimen and dozens like it were collected from matrix material deposited in the waters of the Chesapeake Bay by a landslide. It is one of only a few species that consistently survived intact in the matrix samples I collected. Most specimens were single, unbroken valves, but several had both valves together and intact. This specimen was donated to the Delaware Museum of Natural History. Formerly known as Corbula inequalis.