Where: Fall River County, South Dakota (43.4° N, 103.7° W: paleocoordinates 38.6° N, 49.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Morrison Formation, Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)
• found high in formation, 2.5 m below top, but age is unclear. Originally the "Atlantosaurus Beds".
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; sandstone and blue shale
Size class: macrofossils
Preservation: trace
Collected by H. F. Wells in 1898; reposited in the YPM
Collection methods: quarrying,
• Originally collected by H. F. Wells in 1898
Primary reference: O. C. Marsh. 1899. Footprints of Jurassic dinosaurs. American Journal of Science 7:227-232 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 36268: authorized by Matthew Carrano, entered by Matthew Carrano on 22.01.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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