Also known as B-559
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 4.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, fine-grained, medium, shelly/skeletal, silty 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 Unpublished PhD thesis, Yale University 1-511 [A. Hendy/A. Hendy/A. Hendy]more details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 79114: authorized by Austin Hendy, entered by Austin Hendy on 25.02.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Thecostraca | |
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle | |
Malacostraca | |
Decapoda indet. Latreille 1802 decapod | |
Scaphopoda | |
Cadulus newtonensis Meyer and Aldrich 1886 tusk shell | |
Gastropoda | |
"Scala sp." = Epitonium (Scala)
"Scala sp." = Epitonium (Scala) Humphrey wentletrap | |
"Turritella plebeia" = Mariacolpus plebeia, "Turritella variabilis" = Turritella (Torcula) variabilis
"Turritella plebeia" = Mariacolpus plebeia Say 1824 turret shell
"Turritella variabilis" = Turritella (Torcula) variabilis Conrad 1830 turret shell | |
Crepidula ? plana Say 1822 slipper shell | |
| |
"Scaphella sp." = Scaphella
"Scaphella sp." = Scaphella Swainson 1832 volute | |
Ecphora sp. Conrad 1843 murex snail | |
Nassa sp. Röding 1798 true whelk | |
Turridae indet. Swainson 1840 turrid | |
"Lunatia heros" = Euspira heros
"Lunatia heros" = Euspira heros Say 1822 moon snail | |
"Teinostoma liparum" = Solariorbis lipara
"Teinostoma liparum" = Solariorbis lipara Lea 1843 snail | |
Calliostoma cf. humile Conrad 1830 top snail
Calliostoma philanthropus Conrad 1834 top snail
Calliostoma ? aphelium Dall 1892 top snail | |
Bivalvia | |
Mytilus incurvus mussel
Mytilus sp. Linnaeus 1758 mussel | |
Isognomon maxillata Lamarck 1819 oyster | |
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens Ward and Blackwlder 1975 scallop | |
"Anadara staminea" = Dallarca staminea
"Anadara staminea" = Dallarca staminea Say 1832 clam | |
"Parvilucina crenulatus" = Parvilucina crenulata
"Parvilucina crenulatus" = Parvilucina crenulata Conrad 1840 clam | |
Bicorbula idonea, "Caryocorbula inaequalis" = Corbula inaequalis
Bicorbula idonea Conrad 1833 clam
"Caryocorbula inaequalis" = Corbula inaequalis Say 1824 clam | |
Spisula ? subparilis Conrad 1841 clam
Spisula sp. Gray 1837 clam | |
Glossus cf. ignolea clam | |
Mercenaria sp. Schumacher 1817 quahog
Dosinia acetabulum Conrad 1832 venus clam
? Pitar subnasuta venus clam | |
"Cerastoderma laqueatum" = Chesacardium laqueatum
"Cerastoderma laqueatum" = Chesacardium laqueatum Conrad 1830 cockle | |
"Macoma biplicata" = Florimetis biplicata
"Macoma biplicata" = Florimetis biplicata Conrad 1834 tellin clam | |
Semele carinata Conrad 1830 clam
Semele subovata Say 1824 clam | |
| |
Panopea sp. Menard 1807 clam
Hiatella arctica Linnaeus 1767 clam | |
"Eucrassatella turgidulus" = Marvacrassatella turgidula
"Eucrassatella turgidulus" = Marvacrassatella turgidula Conrad 1843 clam | |
Cyclocardia granulata Say 1824 clam | |
Astarte thisphila Glenn 1904 clam | |
Chondrichthyes | |
Myliobatis sp. Cuvier 1816 eagle ray | |
Echinoidea | |
Abertella aberti Conrad 1842 sand dollar |