Also known as B-560
Where: Calvert County, Maryland (38.4° N, 76.4° W: paleocoordinates 38.6° N, 73.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Drumcliff Member (Choptank Formation), Serravallian (13.8 - 11.6 Ma)
• STRATIGRAPHIC RELATIONS: From Drumcliff Mbr of the Choptank Fm, Chesapeake Grp. AGE: Middle Miocene. STRATIGRAPHIC POSITION: From unit 5.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, fine-grained, medium, shelly/skeletal sandstone
Size class: macrofossils
Collected by Kidwell in 1978; reposited in the YPM
Collection methods: bulk, sieve,
• COLLECTOR: S.K. Kidwell, 1978. REPOSITORY: Peabody Museum of Natural History, Yale University.
Primary reference: S. M. Kidwell. 1982. Stratigraphy, invertebrate taphonomy and depositional history of the Miocene Calvert and Choptank Formations, Atlantic Coastal Plain. Unpublished PhD thesis, Yale University 1-511 [A. Hendy/A. Hendy/A. Hendy]more details
Purpose of describing collection: taphonomic analysis
PaleoDB collection 79115: authorized by Austin Hendy, entered by Austin Hendy on 25.02.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
"Turritella plebeia" = Mariacolpus plebeia
"Turritella plebeia" = Mariacolpus plebeia Say 1824 turret shell | |
Scala ? marylandica Martin 1904 wentletrap | |
"Lunatia heros" = Euspira heros
"Lunatia heros" = Euspira heros Say 1822 moon snail | |
Bivalvia | |
"Eucrassatella turgidulus" = Marvacrassatella turgidula
"Eucrassatella turgidulus" = Marvacrassatella turgidula Conrad 1843 clam | |
Astarte thisphila Glenn 1904 clam | |
"Parvilucina crenulatus" = Parvilucina crenulata
"Parvilucina crenulatus" = Parvilucina crenulata Conrad 1840 clam | |
"Caryocorbula inaequalis" = Corbula inaequalis, Bicorbula idonea
"Caryocorbula inaequalis" = Corbula inaequalis Say 1824 clam
Bicorbula idonea Conrad 1833 clam | |
Paramya subovata Conrad 1845 softshell clam | |
Dosinia acetabulum Conrad 1832 venus clam
Mercenaria plena Conrad 1869 quahog | |
Spisula subparilis Conrad 1841 clam | |
Glossus cf. ignolea clam | |
"Cerastoderma laqueatum" = Chesacardium laqueatum
"Cerastoderma laqueatum" = Chesacardium laqueatum Conrad 1830 cockle | |
Tellinidae indet. Blainville 1814 tellin clam | |
? Mytilus sp. Linnaeus 1758 mussel | |
Lingulata | |
Thecostraca | |
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle |