Station 6. Biggs Farm, south bank Chesapeake and Delaware Canal: Early Maastrichtian, Delaware
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Cypraeidae
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Richards and Shapiro 1963 | |||||||
see common names |
Geography
Country: | United States | State/province: | Delaware | County: | New Castle |
Coordinates: | 39.6° North, 75.6° West (view map) | ||||
Paleocoordinates: | 41.1° North, 39.0° West (Wright 2013) | ||||
Basis of coordinate: | estimated from map | ||||
Altitude: | 34 meters | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Early Maastrichtian | ||
Age range of interval: | 72.1 - 66 m.y. ago |
Stratigraphy
Geological group: | Monmouth | Formation: | Mount Laurel/Navesink |
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | glauconitic,gray,green,red claystone |
Includes fossils? | Y |
Lithology description: Rust brown with green and red spots, medium, well sorted, subrounded, quartz sand; most grains stained with iron hydroxide; some glauconite; few black minerals; some brick red and gray clay balls. A highly fossiliferous zone is found at sea level. | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Abundance in sediment: | abundant |
Feeding/predation traces: | drill holes |
Collection methods and comments
Collection methods: | surface (float),mechanical,field collection |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 176022 | ||
Authorizer: | P. Wagner | Enterer: | P. Wagner |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2016-01-22 18:00:57 | Last modified: | 2025-02-22 15:12:02 |
Access level: | the public | Released: | 2016-01-22 18:00:57 |
Creative Commons license: | CC0 |
Reference information
Primary reference:
57733. | L. T. Groves. 1990. New Species of Late Cretaceous Cypraeacea (Mollusca: Gastropoda) from California and Mississippi, and a Review of Cretaceous Cypraeaceans of North America. The Veliger 33(3):272-285 [P. Wagner/P. Wagner/P. Wagner] |
Secondary references:
57735 | H. G. Richards and E. Shapiro. 1963. An invertebrate macrofauna from the Upper Cretaceous of Delaware. Delaware Geological Survey Report of Investigations 7:1-37 [P. Wagner/P. Wagner] |