Where: Calvert County, Maryland (38.5° N, 76.5° W: paleocoordinates 38.7° N, 73.7° W)
• coordinate estimated from map
When: Boston Cliffs Member (Choptank Formation), Serravallian (13.8 - 11.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; red, sandy claystone
•
Size class: macrofossils
Preservation: original phosphate
Reposited in the USNM
Collection methods: surface (in situ),
Primary reference: G. B. Shattuck. 1904. Geological and paleontological relations, with a review of earlier investigations. Maryland Geological Survey Miocene Text xxxiii-clv [M. Uhen/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 70832: authorized by Mark Uhen, entered by Mark Uhen on 09.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
| Bivalvia | |
|
Venus campechiensis cuneata quahog | |
|
Cardium laqueatum laqueatum cockle | |
| Thecostraca | |
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle | |
| Gastropoda | |
|
Turritella terebriformis Conrad 1863 turret shell | |
|
Ecphora meganae williamsi Ward and Gilinsky 1988 murex snail | |
| Bivalvia | |
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens, "Pecten madisonius" = Chesapecten madisonius
"Chesapecten nefrens" = Chesapecten (Chesapecten) nefrens Ward and Blackwlder 1975 scallop
"Pecten madisonius" = Chesapecten madisonius Say 1824 scallop | |
Dallarca elevata, "Arca staminea" = Dallarca staminea
Dallarca elevata clam
"Arca staminea" = Dallarca staminea Say 1832 clam | |
"Corbula idonea" = Bicorbula idonea
"Corbula idonea" = Bicorbula idonea Conrad 1833 clam | |
|
Mercenaria cuneata Conrad 1869 quahog
Dosinia acetabulum blackwelderi Ward 1992 venus clam | |
|
Stewartia anodonta Say 1824 clam | |
|
Marvacrassatella marylandica Conrad 1832 clam | |
|
Astarte thisphila Glenn 1904 clam
Astarte obruta Conrad 1834 clam | |