Also known as L&W locality 38a
Where: Corson County, South Dakota (45.7° N, 101.4° W: paleocoordinates 51.4° N, 74.9° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Lance Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• originally Great Lignite Formation (Miocene); "lowest member of the lignite formation"
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by F. V. Hayden & Sully in the 1860s; reposited in the USGS, USNM
Collection methods: surface (float),
Primary reference: J. Leidy. 1860. Extinct vertebrates from the Judith River and Great Lignite Formations of Nebraska. Transactions of the American Philosophical Society 11:139-154 [M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 69214: authorized by Matthew Carrano, entered by Matthew Carrano on 21.02.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Thespesius occidentalis n. gen. n. sp.
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