Also known as B-516
Where: Calvert County, Maryland (38.4° N, 76.6° W: paleocoordinates 38.6° N, 73.7° 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 1.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, fine, 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 Unpublished PhD thesis, Yale University 1-511 [A. Hendy/A. Hendy/A. Hendy]more details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 79352: authorized by Austin Hendy, entered by Austin Hendy on 03.03.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Myliobatis sp. Cuvier 1816 eagle ray | |
Malacostraca | |
Decapoda indet. Latreille 1802 decapod | |
Thecostraca | |
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle | |
Bryozoa | |
Bryozoa indet. Ehrenberg 1831 | |
Gymnolaemata | |
"Membranipora" sp. Blainville 1834 | |
Lingulata | |
Discinisca lugubris Conrad 1834 | |
Bivalvia | |
Nucula taphria Dall 1898 nut clam | |
Nuculana liciata Conrad 1843 pointed nut clam | |
Modiolus ? ducatelli mussel
Modiolus sp. Lamarck 1801 mussel
Modiolus dalli Glenn 1904 mussel
Mytilus ? incurvus mussel | |
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens Ward and Blackwlder 1975 scallop | |
Astarte ? thisphila Glenn 1904 clam | |
? Pitar subnasuta venus clam
Mercenaria sp. Schumacher 1817 quahog
Dosinia acetabulum Conrad 1832 venus clam | |
Glossus sp. Poli 1795 clam | |
Spisula subparilis Conrad 1841 clam | |
"Cerastoderma laqueatum" = Chesacardium laqueatum
"Cerastoderma laqueatum" = Chesacardium laqueatum Conrad 1830 cockle | |
Semele subovata Say 1824 clam | |
Aligena aequata Conrad 1843 aligena | |
"Caryocorbula inaequalis" = Corbula inaequalis
"Caryocorbula inaequalis" = Corbula inaequalis Say 1824 clam | |
Hiatella arctica Linnaeus 1767 clam | |
"Parvilucina crenulatus" = Parvilucina crenulata
"Parvilucina crenulatus" = Parvilucina crenulata Conrad 1840 clam | |
Scaphopoda | |
Cadulus newtonensis Meyer and Aldrich 1886 tusk shell | |
Gastropoda | |
Turritella sp. Lamarck 1799 turret shell | |
""Scala" sayana" = Epitonium humphreysii
""Scala" sayana" = Epitonium humphreysii Kiener 1838 wentletrap | |
Ecphora sp. Conrad 1843 murex snail | |
Calliostoma aphelium Dall 1892 top snail |