Collection A788 from Waage Loc. 90: Early/Lower Maastrichtian, South Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Nuculida - Nuculidae
Nucula cancellata Meek and Hayden 1857
see common names

Geography
Country:United States State/province:South Dakota County:Dewey
Coordinates: 45.2° North, 101.4° West (view map)
Paleocoordinates:50.9° North, 75.2° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Early/Lower Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Formation:Fox Hills Member:Timber Lake
Stratigraphic resolution:bed
Stratigraphy comments: the collection comes form the abyssinus concretion layer
Lithology and environment
Primary lithology:fine lithified argillaceous,silty,sandy "shale"
Includes fossils?Y
Lithology description: characterized by yellow-brown to yellow-orange-weathering muddy sands (subgreywacke) and large dark-reddish weathering concretions (see Waage, 1968 for a more detailed description)
Environment:transition zone/lower shoreface Tectonic setting:foreland basin
Glacial or sequence phase:highstand systems tract
Taphonomy
Modes of preservation:body,mold/impression,concretion,original aragonite,original calcite,original phosphate
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Abundance in sediment:common
Articulated whole bodies:many
Associated major elements:many
Temporal resolution:time-averaged
Spatial resolution:autochthonous
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:bulk,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:YPM
Metadata
Database number:53484
Authorizer:P. Harries Enterer:P. Harries
Modifier:P. Harries Research group:marine invertebrate
Subset of collection #:1320
Created:2005-09-09 11:54:39 Last modified:2005-09-09 15:40:23
Access level:the public Released:2005-09-09 11:54:39
Creative Commons license:CC BY
Reference information

Primary reference:
14405. I. G. Speden. 1970. The type Fox Hills Formation, Cretaceous (Maestrichtian), South Dakota Part 2. Systematics of the Bivalvia. Peabody Museum of Natural History Bulletin 33:1-222 [P. Harries/P. Harries/P. Harries]