Where: Prince Georges County, Maryland (38.8° N, 76.7° W: paleocoordinates 39.3° N, 58.2° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Aquia Formation (Pamunkey Group), Late/Upper Paleocene (58.7 - 55.8 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 91709: authorized by Jocelyn Sessa, entered by Laurie Eccles on 17.10.2009, edited by Ursula Smith
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Nuculana parilis pointed nut clam | |
""Lucina" uhleri" = Myrtaea (Myrtaea) curta, Miltha (cf. Saxolucina) aquiana
""Lucina" uhleri" = Myrtaea (Myrtaea) curta Conrad 1865 clam | |
Teredo virginiana Clark 1895 clam | |
Gastrochaena "sp. A" Spengler 1783 clam | |
Dosiniopsis lenticularis Rogers 1838 venus clam
Pitar (Pitar) pyga venus clam | |
Nemocardium "sp. C" Meek 1876 cockle | |
Panopea elongata clam | |
"Astarte" marylandica Clark 1895 clam | |
Venericardia (Venericor) regia Conrad 1865 clam | |
Bathytormus alaeformis Conrad 1830 clam | |
Brachidontes potomacensis mussel | |
Eburneopecten dalli scallop | |
Gryphaeostrea vomer Morton 1828 oyster | |
Pteria "sp. D" Scopoli 1777 pearl oyster | |
| |
Cucullaea (Cyphoxis) gigantea Conrad 1862 clam | |
Gastropoda | |
Odostomia "sp. C" Fleming 1817 snail | |
Tornatellaea "sp. C" Conrad 1860 snail | |
"Calliostoma" "sp. B" Swainson 1840 top snail | |
Diodora marlboroensis snail | |
Serpulorbis "sp." Sasso 1827 worm shell | |
Priscoficus arguta fig shell | |
Calyptraphorus jacksoni Clark 1895 snail | |
Strepsidura "spp." Swainson 1840 true whelk
Pseudoliva "sp. C" Swainson 1840 true whelk | |
Euspira marylandica Conrad 1865 moon snail | |
? Turritella "sp. B" Lamarck 1799 turret shell
Turritella humerosa Conrad 1835 turret shell |