USGS Mesozoic loc. 29489; Oakes Ranchhouse (Jurassic of the United States)

Where: Tehama County, California (40.0° N, 122.6° W: paleocoordinates 36.2° N, 69.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Tithonian (150.8 - 145.0 Ma)

• Late Tithonian. Buchia aff. B. okensis (Pavlow) zone.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and concretionary mudstone

• ENVIRONMENT: Not stated in text.
• From thin interbeds of graywacke and mudstone containing limestone concretions

Size class: macrofossils

Collected by D. L. Jones and R. W. Imlay in 1966; reposited in the USNM

Collection methods: surface (in situ),

Primary reference: D. L. Jones, E. H. Bailey, and R. W. Imlay. 1969. Structural and stratigraphic significance of the Buchia zones in the Colyear Springs-Paskenta Area, California. United States Geological Survey Professional Paper (647-A)A1-A24 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 83599: authorized by Austin Hendy, entered by Austin Hendy on 22.08.2008, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Neocomitidae
"Parodontoceras cf. storrsi" = Substeueroceras storrsi
"Parodontoceras cf. storrsi" = Substeueroceras storrsi Stanton 1895 ammonite
 Phylloceratida - Phylloceratidae
? Phylloceras contrarium Imlay and Jones 1970 ammonite
Bivalvia
 Pectinida - Buchiidae
Buchia trigonoides Lahusen Smith 1894 scallop
Buchia aff. okensis Pavlow 1907 scallop