Also known as B-544
Where: Calvert County, Maryland (38.4° N, 76.5° W: paleocoordinates 38.6° N, 73.6° 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 base of unit 3.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, fine-grained, 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 Unpublished PhD thesis, Yale University 1-511 [A. Hendy/A. Hendy/A. Hendy]more details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 79107: authorized by Austin Hendy, entered by Austin Hendy on 25.02.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Malacostraca | |
Decapoda indet. Latreille 1802 decapod | |
Thecostraca | |
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle | |
Sedentaria | |
Polydora sp. Bosk 1801 | |
Gastropoda | |
"Turritella plebeia" = Mariacolpus plebeia, Turritella plebeius
"Turritella plebeia" = Mariacolpus plebeia Say 1824 turret shell
Turritella plebeius turret shell | |
Crucibulum multilineatum, "Crucibulum ? constrictum" = Crucibulum (Dispotaea) constrictum
Crucibulum multilineatum Conrad 1842 slipper shell
"Crucibulum ? constrictum" = Crucibulum (Dispotaea) constrictum Conrad 1842 slipper shell | |
Ecphora sp. Conrad 1843 murex snail | |
"Lunatia heros" = Euspira heros
"Lunatia heros" = Euspira heros Say 1822 moon snail | |
""Scala" ? sayana" = Epitonium humphreysii
""Scala" ? sayana" = Epitonium humphreysii Kiener 1838 wentletrap | |
Calliostoma alphelium top snail
Calliostoma philanthropus Conrad 1834 top snail | |
Bivalvia | |
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens Ward and Blackwlder 1975 scallop | |
Isognomon maxillata Lamarck 1819 oyster | |
"Anadara staminea" = Dallarca staminea
"Anadara staminea" = Dallarca staminea Say 1832 clam | |
Modiolus sp. Lamarck 1801 mussel
Mytilus sp. Linnaeus 1758 mussel | |
Hiatella arctica Linnaeus 1767 clam
Panopea sp. Menard 1807 clam | |
Ensis sp. Schumacher 1817 clam | |
? Myoidea indet. Lamarck 1809 clam | |
Bicorbula idonea Conrad 1833 clam
Caryocorbula ? cuneata Say 1824 clam
"Caryocorbula inaequalis" = Corbula inaequalis Say 1824 clam | |
Mercenaria sp., Dosinia acetabulum, ? Clementia sp., ? Pitar subnasuta, ? Pitar sp., Callista marylandica
Mercenaria sp. Schumacher 1817 quahog
Dosinia acetabulum Conrad 1832 venus clam
? Clementia sp. Gray 1847 venus clam
? Pitar subnasuta venus clam
? Pitar sp. Römer 1857 venus clam
Callista marylandica venus clam | |
Spisula subparilis Conrad 1841 clam
? Spisula sp. Gray 1837 clam | |
"Cerastoderma laqueatum" = Chesacardium laqueatum
"Cerastoderma laqueatum" = Chesacardium laqueatum Conrad 1830 cockle | |
Gari gubernatoria clam | |
Semele subovata Say 1824 clam | |
Tellinidae indet. Blainville 1814 tellin clam | |
"Megaxinus anodonta" = Stewartia anodonta
"Megaxinus anodonta" = Stewartia anodonta Say 1824 clam | |
"Eucrassatella turgidulus" = Marvacrassatella turgidula
"Eucrassatella turgidulus" = Marvacrassatella turgidula Conrad 1843 clam | |
Astarte thisphila Glenn 1904 clam | |
Nuculana liciata Conrad 1843 pointed nut clam | |
Nucula ? taphria Dall 1898 nut clam | |
Lingulata | |
Discinisca lugubris Conrad 1834 |