M 118 (Paleocene of the United States)

Where: Prince Georges County, Maryland (38.7° N, 77.0° W: paleocoordinates 39.3° N, 58.5° 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 91714: 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
 Arcida - Cucullaeidae
 Carditida - Crassatellidae
Bathytormus alaeformis Conrad 1830 clam
 Carditida - Carditidae
 Pholadida - Teredinidae
Teredo virginiana Clark 1895 clam
 Cardiida - Veneridae
Dosiniopsis lenticularis Rogers 1838 venus clam
 Cardiida - Cardiidae
Nemocardium "sp. C" Meek 1876 cockle
 Hiatellida - Hiatellidae
 Lucinida - Lucinidae
""Lucina" uhleri" = Myrtaea (Myrtaea) curta
""Lucina" uhleri" = Myrtaea (Myrtaea) curta Conrad 1865 clam
Gastropoda
 Ptenoglossa - Fasciolariidae
Dolicholatirus sp. Bellardi 1884 snail
 Cephalaspidea - Cylichnidae
Cylichna venusta Clark 1895 snail
 Neogastropoda - Conidae
""Pleurotoma" piscatavensis" = Turris, cf. Eopleurotoma potomacensis
""Pleurotoma" piscatavensis" = Turris turrid
 Neogastropoda - Cancellariidae
 Neogastropoda - Mitridae
 Neogastropoda - Muricidae
Odontopolys sp. murex snail
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium "sp. B" Linnaeus 1758 tusk shell
 Gadilida - Gadilidae
Cadulus "sp. F" Philippi 1844 tusk shell