CAS loc. 1657, Mitchell Creek area (Cretaceous of the United States)

Also known as a mile east of the Jordan house; CAS G loc. 61691; CAS G loc. 61692; CAS G loc. 66468; CAS G loc. 66502; CAS G loc. 66607; CAS G loc. 66610

Where: Shasta County, California (40.4° N, 122.7° W: paleocoordinates 39.7° N, 72.1° W)

• coordinate estimated from map

When: Shasticrioceras poniente ammonoid zone, Chickabilly Member (Budden Canyon Formation), Late/Upper Barremian (130.0 - 125.5 Ma)

• Lower Chickabilly Member of the Budden Canyon Formation

•stages based on Fernando, et al., 2011

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the CAS

Primary reference: F. M. Anderson. 1938. Lower Cretaceous deposits in California and Oregon. Geological Society of America Special Paper 16:1-331 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 225526: authorized by Jonathan Marcot, entered by Jonathan Marcot on 14.05.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Belemnitida - Belemnitidae
Acroteuthis onoensis n. sp. Anderson 1938 belemnite
Acroteuthis mitchelli n. sp. Anderson 1938 belemnite
 Ammonoidea - Megacrioceratidae
"Shasticrioceras poniente n. gen. n. sp." = Shasticrioceras poniente, "Shasticrioceras ? hesperum" = Shasticrioceras poniente
"Shasticrioceras poniente n. gen. n. sp." = Shasticrioceras poniente Anderson 1938 ammonite
"Shasticrioceras ? hesperum" = Shasticrioceras poniente Anderson 1938 ammonite
 Ammonitida - Heteroceratidae
Hemibaculites neleus n. sp. Anderson 1938 ammonite
 Ammonitida - Ptychoceratidae
Ptychoceras natrice n. sp. Anderson 1938 ammonite
 Ammonitida - Ancyloceratidae
Ancyloceras elephas n. sp. Anderson 1938 ammonite
p. 309
Shastoceras behemoth Anderson 1938 ammonite