Also known as B-501
Where: Calvert County, Maryland (38.6° N, 76.5° W: paleocoordinates 38.9° N, 72.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Plum Point Member (Calvert Formation), Burdigalian (20.4 - 16.0 Ma)
• STRATIGRAPHIC RELATIONS: From Plum Point Mbr of the Calvert Fm, Chesapeake Grp. AGE: Middle Miocene. STRATIGRAPHIC POSITION: From base of unit 7.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, burrowed, fine-grained 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 Unpublished PhD thesis, Yale University 1-511 [A. Hendy/A. Hendy/A. Hendy]more details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: taxonomic analysis
PaleoDB collection 79101: authorized by Austin Hendy, entered by Austin Hendy on 25.02.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Bryozoa | |
Bryozoa indet. Ehrenberg 1831 | |
Polychaeta | |
Polydora sp. Bosk 1801 | |
Gastropoda | |
"Turritella variabilis" = Turritella (Torcula) variabilis
"Turritella variabilis" = Turritella (Torcula) variabilis Conrad 1830 turret shell | |
"Lunatia heros" = Euspira heros
"Lunatia heros" = Euspira heros Say 1822 moon snail | |
Ecphora sp. Conrad 1843 murex snail | |
Bivalvia | |
Nucula prunicola Dall 1898 nut clam | |
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens Ward and Blackwlder 1975 scallop | |
Atrina sp. Gray 1842 oyster | |
Glycymeris parilis Conrad 1843 clam | |
Cardiidae indet. Lamarck 1809 cockle
Cerastoderma leptopleurum cockle | |
Semele carinata Conrad 1830 clam | |
"Chione latilirata" = Lirophora (Lirophora) latilirata Conrad 1841 venus clam
Dosinia acetabulum Conrad 1832 venus clam
Mercenaria ? ducatelli Conrad 1838 quahog | |
Spisula subparilis Conrad 1841 clam | |
"Corbula elevata" = Varicorbula elevata
"Corbula elevata" = Varicorbula elevata Conrad 1838 clam | |
"Kuphus" sp. Guettard 1770 clam | |
"Megaxinus anodonta" = Stewartia anodonta
"Megaxinus anodonta" = Stewartia anodonta Say 1824 clam | |
Cyclocardia granulata Say 1824 clam | |
Astarte cuneiformis Conrad 1840 clam | |
Thecostraca | |
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle |