Where: Charles County, Maryland (38.4° N, 77.0° W: paleocoordinates 38.8° N, 61.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Nanjemoy Formation (Pamunkey Group), Ypresian (56.0 - 47.8 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: mesofossils
Primary reference: K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 91117: authorized by Jocelyn Sessa, entered by Laurie Eccles on 05.09.2009, edited by Ursula Smith
Creative Commons license: CC BY (attribution)
Taxonomic list
Scaphopoda | |
Dentalium "sp. A" Linnaeus 1758 tusk shell | |
Bivalvia | |
Lucina "sp. D" Bruguière 1797 clam
Lucina dartoni Clark 1895 clam
""Lucina" uhleri" = Myrtaea (Myrtaea) curta Conrad 1865 clam | |
Corbula "sp. G" Bruguière 1789 clam | |
Nemocardium lene cockle | |
Tellina (Angulus) virginiana Clark 1895 tellin clam
Tellina williamsi Clark 1895 tellin clam | |
Pitar (Pitar) ovatus Rogers and Rogers 1837 venus clam
Macrocallista subimpressa venus clam | |
Brachidontes potomacensis mussel | |
Chlamys choctavensis Aldrich 1895 scallop | |
Anomia marylandica jingle | |
Pteria "sp. D" Scopoli 1777 pearl oyster | |
| |
"Cucullaea transversa" = Cucullaea
"Cucullaea transversa" = Cucullaea clam | |
Nucula (Nucula) potomacensis nut clam | |
Saccella parva Rogers and Rogers 1837 pointed nut clam
Nuculana cultelliformis pointed nut clam
Nuculana improcera pointed nut clam
Nuculana tysoni pointed nut clam | |
Gastropoda | |
Calyptraphorus "sp. D" Conrad 1857 snail | |
"Ficopsis "sp."" = Ficus
"Ficopsis "sp."" = Ficus Röding 1798 fig shell | |
cf. Bolis "sp. A" Gardner 1939 true whelk
Strepsidura "sp. C" Swainson 1840 true whelk | |
cf. Levifusus "sp." Conrad 1865 snail
Levifusus "sp. A" Conrad 1865 snail | |
""Olivula" "sp."" = Ancilla (Olivula)
""Olivula" "sp."" = Ancilla (Olivula) olive snail | |
? Mesorhytis "sp. A" mitre shell | |
? Turritella "sp. A" Lamarck 1799 turret shell | |
Gegania marylandica snail |