Bridgeton - Kirkwood Formation: Early/Lower Miocene, New Jersey
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea aperta
(Solander 1766)
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| recombined as Calyptraea (Trochita) aperta | |||||||
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Crepidula fornicata
(Linnaeus 1758)
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Crucibulum costatum
(Say 1820)
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| recombined as Crucibulum (Dispotaea) costata | |||||||
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Bivalvia
- Nuculida
- Nuculidae
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Nucula proxima
Say 1820
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| recombined as Nucula (Nucula) proxima | |||||||
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Bivalvia
- Carditida
- Crassatellidae
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Eucrassatella melina
(Conrad 1832)
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| recombined as Marvacrassatella melina | |||||||
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Bivalvia
- Carditida
- Carditidae
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Cardita arata
(Conrad 1832)
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| recombined as Carditamera arata | |||||||
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Bivalvia
- Carditida
- Astartidae
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Astarte distans
Conrad 1862
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Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta shilohensis
Dall 1900
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Bivalvia
- Cardiida
- Cardiidae
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Cardium patuxentium
Glenn 1904
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| synonym of Chesacardium craticuloides | |||||||
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Bivalvia
- Mytilida
- Mytilidae
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Modiola inflata
Tuomey and Holmes 1856
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| synonym of Modiolus ducatellii | |||||||
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris parilis
(Conrad 1843)
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Bivalvia
- Arcida
- Arcidae
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Arca centenaria
Say 1824
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| recombined as Striarca centenaria | |||||||
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Bivalvia
- Ostreida
- Malleidae
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Melina maxillata
(Lamarck 1819)
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| recombined as Isognomon maxillata | |||||||
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Lingulata
- Discinida
- Disciniidae
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Discinisca lugubris
(Conrad 1834)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | New Jersey | County: | Cumberland |
| Coordinates: | 39.4° North, 75.2° West (view map) | ||||
| Paleocoordinates: | 39.6° North, 70.8° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | local area |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| Key time interval: | Early/Lower Miocene | ||
| Age range of interval: | 23.03000 - 15.98000 m.y. ago |
Stratigraphy
| Formation: | Kirkwood | ||||
| Local section: | Bridgeton | ||||
| Regional section: | Cumberland | ||||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: No lithostratigraphic details or stratigraphic relationships provided in text. Equivalent in age and slightly older than the Calvert Formaiton of Maryland and Virginia. Overlain by the Cohansey Sand with a time transgressive contact, Kirkwood Formation is Burdigalian-Langhian in age. | |||||
Lithology and environment
| Primary lithology: | unlithified argillaceous,silty mudstone |
| Secondary lithology: | pebbly sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: No lithologic data reported in text. Clayey to silty mudrock, massive sand, and thin pebble lenses. | |
| Environment: | coastal indet. |
| Geology comments: No geologic or paleoenvironmental data reported in text. Deposited in a sublittoral to nearshore environments | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection,survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: Collections reposited in USNM and USGS collections. From Richards and Harbison (1942: "Whitfield frequently speaks of a "stony layer" near Bridgeton and many of the fossulks in the various museums labelled "Bridgeton" are in the sandstone phase of the Kirkwood. The exact locality of the fossils was not given and no exposures can be found in the vicinityyu of Bridgeton today." | |
| Taxonomic list comments:Exhaustive for Gastropoda, Bivalvia and Scaphopoda. Nomenclature is somewhat antiquated but provided to species resolution and authoritative. | |
Metadata
| Database number: | 59337 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2006-03-26 12:02:23 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2006-03-26 12:02:23 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 17100. | H. G. Richards and A. Harbison. 1942. Miocene invertebrate fauna of New Jersey. Proceedings of the Academy of Natural Sciences of Philadelphia 94:167-250 [A. Miller/A. Hendy] |
Secondary references:
| 16984 | J. A. Gardner. 1943. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina. Part 1. Pelecypoda. United States Geological Survey Professional Paper 199(A):1-178 [A. Miller/A. Hendy/S. Ávila] |