USGS Mesozoic Loc. 27317 (Jurassic to of the United States)
Where: El Dorado County, California (38.5° N, 120.9° W: paleocoordinates 32.9° N, 66.1° W)
• coordinate estimated from map
When: Logtown Ridge Formation, Callovian to Callovian (166.1 - 150.8 Ma)
Environment/lithology: marine; metamorphosed tuff
Size class: macrofossils
Collected by Imlay in 1958
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 192818: 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 | |
"Pseudocadoceras grewingki" = Cadoceras (Pseudocadoceras) grewingki, Pseudocadoceras cf. crassicostatum
"Pseudocadoceras grewingki" = Cadoceras (Pseudocadoceras) grewingki Pompeckj 1900 ammonite
Pseudocadoceras cf. crassicostatum Imlay 1953 ammonite | |