CAS loc. 28609, Alder Springs road, 3.5 miles north of the Winslow bridge (Jurassic of the United States)

Where: Glenn County, California (39.7° N, 122.5° W: paleocoordinates 35.7° N, 69.5° W)

• coordinate based on nearby landmark

When: Paskenta Group, Tithonian (152.1 - 145.0 Ma)

• "upper part of the Newville group"

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by Dr. Gayle Scott; reposited in the CAS

Primary reference: F. M. Anderson. 1945. Knoxville series in the California Mesozoic. Geological Society America Bulletin 56(10):909-1014 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 225610: authorized by Jonathan Marcot, entered by Jonathan Marcot on 19.05.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Plantae indet. Haeckel 1866
Fossil wood
Cephalopoda
 Ammonitida - Perisphinctidae
? Virgatosphinctes sp. Uhlig 1910 ammonite
Perisphinctes sp. Waagen 1869 ammonite
 Ammonitida - Lytoceratidae
Lytoceras sp. Suess 1865 ammonite
Bivalvia
 Myalinida - Inoceramidae
Inoceramus scotti n. sp. Anderson 1945 clam
 Ostreiformii -
Pectinida indet. Gray 1854 scallop
as "Pecten (Syncyclonema) aff. concentricum Koch"; I found "Pecten concentricus" Koch and Dunker 1837, but this has since been synonymized with species from different superfamiliies (e.g., Johnson 1984)
 Pectinida - Buchiidae
Aucella fischeri, "Aucella piochii" = Buchia piochii, "Aucella russiensis" = Buchia piochii
Aucella fischeri Pavlow 1907 scallop
"Aucella piochii" = Buchia piochii Gabb 1864 scallop
"Aucella russiensis" = Buchia piochii Gabb 1864 scallop