Deep Cut Spoils: Early/Lower Campanian, Delaware
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Rajiformes
- Sclerorhynchidae
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Ischyrhiza mira
Leidy 1856
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Chondrichthyes
- Lamniformes
- Alopiidae
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Paranomotodon angustidens
(Reuss 1845)
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Chondrichthyes
- Lamniformes
- Mitsukurinidae
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Scapanorhynchus texanus
(Roemer 1852)
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Chondrichthyes
- Lamniformes
- Otodontidae
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Cretolamna appendiculata
(Agassiz 1835)
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| recombined as Cretalamna appendiculata | |||||||
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Chondrichthyes
- Lamniformes
- Anacoracidae
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Squalicorax kaupi
(Agassiz 1843)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Delaware | County: | New Castle |
| Coordinates: | 39.5° North, 75.7° West (view map) | ||||
| Paleocoordinates: | 39.0° North, 45.7° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Early/Lower Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Geological group: | Matawan | Formation: | Merchantville |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | fine,glauconitic,micaceous,gray,blue silty sandstone |
| Lithology description: Dark gray to dark blue, very micaceous, glauconitic, sandy silt and silty fine sand. This formation has many burrows made by benthic organisms and contains numerous siderite nodules. It has an extensive invertebrate macrofauna has yielded large ammonites and numerous arthropods. The veretebrate remains are sparse but include many important finds including turtles, mosasaurs, pterosaurs, bony fish, as well as shark material. The sediments were deposited in an open marine, shallow water environment. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all macrofossils |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 126812 | ||
| Authorizer: | M. Uhen | Enterer: | M. Shalap |
| Modifier: | M. Clapham | Research group: | vertebrate |
| Created: | 2012-04-18 09:33:29 | Last modified: | 2021-07-23 23:16:27 |
| Access level: | the public | Released: | 2012-04-18 09:33:29 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 41092. | E. M. Lauginiger and E. F. Hartstein. 1983. A guide to fossil sharks, skates, and rays from the Chesapeake and Delaware Canal area, Delaware. Open File Report - Delaware Geological Survey 21:1-63 [M. Uhen/M. Shalap/M. Shalap] |