North Haven, Knox Co. - Presumpscot Fm (Pleistocene): Late/Upper Pleistocene, Maine
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Gastropoda
- Naticidae
|
|||||||
|
Polinices groenlandicus
(Möller 1842)
|
|||||||
| synonym of Euspira pallida | |||||||
|
Bivalvia
- Pectinida
- Pectinidae
|
|||||||
|
Chlamys islandicus
(Müller 1776)
|
|||||||
| original and current combination Ostrea islandicus | |||||||
|
Bivalvia
- Pholadida
- Myidae
|
|||||||
|
Mya truncata
Linnaeus 1758
|
|||||||
| recombined as Mya (Mya) truncata | |||||||
|
Mya arenaria
Linnaeus 1758
|
|||||||
| recombined as Mya (Arenomya) arenaria | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Maine | County: | Knox |
| Coordinates: | 44.1° North, 68.9° West (view map) | ||||
| Paleocoordinates: | 44.1° North, 68.9° 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. 7 | ||
| Database number: | 66343 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2006-10-08 16:07:36 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | group members | Released: | 2007-10-08 16:07:36 |
| 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] |
Secondary references:
| 18975 | A. L. Bloom. 1960. Late Pleistocene changes of sea level in southwestern Maine [A. Hendy/A. Hendy] |