USGS Mesozoic Loc. 27517 (Jurassic to of the United States)
Where: El Dorado County, California (38.9° N, 120.9° W: paleocoordinates 33.6° N, 66.6° W)
• coordinate estimated from map
When: Mariposa Formation, Late/Upper Oxfordian to Late/Upper Oxfordian (161.2 - 150.8 Ma)
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Primary reference: R. W. Imlay. 1961. Late Jurassic ammonites from the western Sierra Nevada, California. United States Geological Survey Professional Paper 374-D:D-1-D-28 [J. Marcot/J. Marcot]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 192809: authorized by Jonathan Marcot, entered by Jonathan Marcot on 19.04.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Cephalopoda | |
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Perisphinctes (Dichotomosphinctes) muhlbachi Hyatt 1894 ammonite | |