Deep Cut: Early/Lower Campanian, Delaware

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Diplomoceratidae
Chesapeakiceras nodatum (Kennedy and Cobban 1993)
Gane et al. 2016
Cirroceras conradi (NJSM GP23099) in Lauginiger et al. (2014)
Gastropoda - Naticidae
Gyrodes supraplicatus Conrad 1858
Gane et al. 2016
Chondrichthyes - Rajiformes - Sclerorhynchidae
Ischyrhiza mira Leidy 1856
Chondrichthyes - Lamniformes - Mitsukurinidae
Scapanorhynchus texanus (Roemer 1852)
Chondrichthyes - Lamniformes - Otodontidae
Cretolamna appendiculata (Agassiz 1835)
recombined as Cretalamna appendiculata
Reptilia - Mosasauridae
Halisaurus platyspondylus (Marsh 1869)
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]