Deep Cut: Early/Lower Campanian, Delaware
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
- Ammonitida
- Diplomoceratidae
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Chesapeakiceras nodatum
(Kennedy and Cobban 1993)
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Gane et al. 2016 | |||||||||
Cirroceras conradi (NJSM GP23099) in Lauginiger et al. (2014) | ||||||||||
Gastropoda
- Naticidae
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Gyrodes supraplicatus
Conrad 1858
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Gane et al. 2016 | |||||||||
Chondrichthyes
- Rajiformes
- Sclerorhynchidae
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Ischyrhiza mira
Leidy 1856
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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 | ||||||||||
Reptilia
- Mosasauridae
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Halisaurus platyspondylus
(Marsh 1869)
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Gallagher 1993 | |||||||||
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: | 83.50000 - 70.60000 m.y. ago |
Stratigraphy
Geological group: | Matawan | Formation: | Merchantville |
Stratigraphic resolution: | formation |
Lithology and environment
Primary lithology: | fine,glauconitic,micaceous,gray,blue silty sandstone |
Includes fossils? | Y |
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: | 126599 | ||
Authorizer: | M. Uhen, M. Clapham, M. Carrano | Enterer: | M. Shalap, M. Carrano, M. Clapham |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2012-04-09 10:38:46 | Last modified: | 2023-06-15 09:52:08 |
Access level: | the public | Released: | 2012-04-09 10:38:46 |
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] |
Secondary references:
41363 | E. W. Berry. 1916. Systematic Paleontology: Vertebrata. In W. Clark (ed.), Maryland Geological Survey: Upper Cretaceous 347-361 [M. Uhen/M. Uhen] | |
54671 | W. B. Gallagher. 1993. The Cretaceous/Tertiary mass extinction event in the North Atlantic coastal plain. The Mosasaur 5:75-154 [M. Carrano/M. Carrano] | |
61108 | M. Gane, R. Johnson, H. Maisch and J. P. Schein. 2016. Redescription of the rare Late Cretaceous ammonite Chesapeakiceras nodatum, from the Chesapeake and Delaware Canal, USA. Proceedings of the Academy of Natural Sciences of Philadelphia 165:9-13 [M. Clapham/M. Clapham] | |
85047 | D. B. Weishampel and L. Young. 1996. Dinosaurs of the East Coast xiii-275 [M. Carrano/M. Carrano] |