Where: Niobrara County, Wyoming (43.2° N, 104.9° W: paleocoordinates 49.7° N, 79.8° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Lance Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; sandstone
Size class: macrofossils
Collected by Burwell in 1890
Collection methods: quarrying, mechanical,
Primary reference: J. B. Hatcher, O. C. Marsh, and R. S. Lull. 1907. The Ceratopsia. Monographs of the United States Geological Survey 49:1-198 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 46128: authorized by Matthew Carrano, entered by Matthew Carrano on 04.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Anatosaurus annectens" = Edmontosaurus annectens
"Anatosaurus annectens" = Edmontosaurus annectens Marsh 1892 hadrosaurine USNM 4737 ("Burwell specimen")
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