UCLA loc. 2784, Alderson Creek (Cretaceous of the United States)

Also known as LACMIP loc. 22784

Where: Shasta County, California (40.5° N, 122.6° W: paleocoordinates 40.8° N, 73.7° W)

• coordinate estimated from map

When: Gabbioceras wintunium ammonoid zone, Chickabilly Member (Budden Canyon Formation), Late/Upper Aptian (122.5 - 113.0 Ma)

• Upper Chickabilly Member of the Budden Canyon Formation

•stages based on Fernando, et al., 2011

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by M. A. Murphy in 1951 - 1953; reposited in the LACM

Primary reference: M. A. Murphy. 1956. Lower Cretaceous stratigraphic units of Northern California. Bulletin of the American Association of Petroleum Geologists 40(9):2098-2119 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 216337: authorized by Jonathan Marcot, entered by Jonathan Marcot on 10.12.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Phylloceratida - Phylloceratidae
"Phylloceras aldersoni" = Holcophylloceras aldersoni
"Phylloceras aldersoni" = Holcophylloceras aldersoni Anderson 1938 ammonite
 Ammonitida - Parahoplitidae
Parahoplitoides cerrosensis Anderson 1938 ammonite
 Ammonitida - Lytoceratidae
Lytoceras batesi Trask 1855 ammonite
 Ammonitida - Desmoceratidae
Melchiorites indigenes Anderson 1938 ammonite