Lewiston, Androscoggin Co. - Presumpscot Fm (Pleistocene): Late/Upper Pleistocene, Maine
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Neogastropoda
- Buccinidae
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Buccinum undatum
Linnaeus 1758
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Bivalvia
- Nuculanida
- Sareptidae
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Yoldia (Portlandia) glacialis
(Wood 1828)
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recombined as Portlandia glacialis | |||||||
Bivalvia
- Pholadida
- Myidae
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Mya arenaria
Linnaeus 1758
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recombined as Mya (Arenomya) arenaria | |||||||
see common names |
Geography
Country: | United States | State/province: | Maine | County: | Androscoggin |
Coordinates: | 44.1° North, 70.2° West (view map) | ||||
Paleocoordinates: | 44.1° North, 70.2° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Quaternary | Epoch: | Pleistocene |
Stage: | Late/Upper Pleistocene | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Late/Upper Pleistocene | ||
Age range of interval: | 0.12900 - 0.01170 m.y. ago |
Stratigraphy
Formation: | Presumpscot | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: 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). |
Lithology and environment
Primary lithology: | unlithified "mixed carbonate-siliciclastic" |
Includes fossils? | Y |
Lithology description: 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). | |
Environment: | marine indet. |
Glacial or sequence phase: | transgressive |
Geology comments: 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. |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | concentrated |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection,survey of museum collection |
Reason for describing collection: | general faunal/floral analysis |
Collection method comments: COLLECTORS: Based on checklists of Dawson 1873, Clapp (1907), Bloom (1960). REPOSITORIES: Collections held in various museums, including YPM (Hendy, pers. comm.) | |
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda, bivalvia, and polyplacophora. NOMENCLATURE: Not an authoratative publication, and somewhat antiquated. However, all occurrences include species-resolution assignments and list synonymies. |
Metadata
Also known as: | Maine Loc. 8 | ||
Database number: | 66344 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2006-10-08 16:09:09 | Last modified: | 2013-11-25 13:37:23 |
Access level: | group members | Released: | 2007-10-08 16:09:09 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
18974. | H. G. Richards. 1962. Studies on the marine Pleistocene: Part II. The marine Pleistocene mollusks of eastern North America. Transactions of the American Philosophocal Society 52(3):1-142 [A. Hendy/A. Hendy] |