Gardiner, Kennebec Co. - Presumpscot Fm (YPM coll.) (Pleistocene of the United States)

Where: York County, Maine (44.2° N, 69.8° W: paleocoordinates 44.2° N, 69.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Presumpscot Formation, Late/Upper Pleistocene (0.1 - 0.0 Ma)

• LITHOSTRATIGRAPHY: No lithostratigraphic unit reported in text. Bloom (1960) assigned the name "Presumpscot Fm" to the sheet of emerged marine sediments that blankets the coastal region of southwestern Maine. AGE: Wisconsin (Levitt and Perkins, 1935), Late Pleistocene (Bloom 1960), Pleistocene (Richards 1962).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified mixed carbonate-siliciclastic sediments

• ENVIRONMENT: No specific environment provided in text for individual collection. Richards (1962) reports that collections were generally deposited in shallow marine settings, during sea level transgressions.
• SPECIFIC LITHOLOGY: No detailed lithologic data reported in text. Text talks of shell beds for Late Pleistocene deposits in Maine described by Packard (1865), Clapp (1907), and Levitt and Perkins (1935) LITHIFICATION: Assumed to be unlithified given age and figured specimens in Richards (1962).

Size class: macrofossils

Collected by Packard; reposited in the YPM

• COLLECTORS: Packard. REPOSITORIES: YPM, New Haven, CT

Primary reference: A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 80028: authorized by Austin Hendy, entered by Austin Hendy on 01.04.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia, and polyplacophora. NOMENCLATURE: Identifications based on Abbott (1974) with revisions by A. Hendy (4/2008).
Bivalvia
 Nuculanida - Nuculanidae
Saccella pernula pointed nut clam
 Carditida - Astartidae
"Astarte banksii" = Astarte montagui, Astarte elliptica
"Astarte banksii" = Astarte montagui Dillwyn 1817 clam
Astarte elliptica Brown 1827 clam
 Thraciida - Thraciidae
"Thracia truncata" = Thracia (Crassithracia) septentrionalis Jeffreys 1872 clam
 Cardiida - Tellinidae
 Cardiida - Cardiidae
"Serripes groenlandicus" = Serripes (Serripes) groenlandicus
"Serripes groenlandicus" = Serripes (Serripes) groenlandicus Mohr 1786 cockle
 Pholadida - Myidae
Mya (Arenomya) arenaria Linnaeus 1758 softshell clam
 Mytilida - Mytilidae
Mytilus edulis Linnaeus 1758 mussel