Enigma Site (RB-02:ENS): Late/Upper Maastrichtian, South Dakota
collected by W. Stein

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Varanidae
Varanidae indet. Hardwicke and Gray 1824
Reptilia
Testudinata indet. (Oppel 1811)
Crocodylia indet. (Owen 1842)
Reptilia - Ceratopsidae
Triceratops sp. Marsh 1889
Reptilia - Dromaeosauridae
Dromaeosauridae indet. Colbert and Russell 1969
see common names

Geography
Country:United States State/province:South Dakota County:Butte
Coordinates: 45.0° North, 103.2° West (view map)
Paleocoordinates:51.1° North, 77.1° West
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Late/Upper Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Geological group:Montana Formation:Hell Creek
Stratigraphic resolution:bed
Stratigraphy comments: in the "Big Sandy Zone"
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:lacustrine - small
Geology comments: "seasonal lake deposit"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Associated major elements:some
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:general faunal/floral analysis
Collectors:W. Stein
Metadata
Also known as:Ruthie's Badlands
Database number:224488
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:G. Varnham Research group:vertebrate
Created:2022-03-09 13:14:06 Last modified:2022-03-28 04:49:47
Access level:the public Released:2022-03-09 13:14:06
Creative Commons license:CC BY
Reference information

Primary reference:
80625. W. W. Stein. 2021. The paleontology, geology and taphonomy of the Tooth Draw Deposit; Hell Creek Formation (Maastrictian), Butte County, South Dakota. The Journal of Paleontological Sciences JPS.C.21:0001:1-108 [M. Carrano/M. Carrano/M. Carrano]