Where: Shasta County, California (40.6° N, 122.4° W: paleocoordinates 43.3° N, 84.8° W)
When: Redding Formation, Turonian (93.9 - 89.8 Ma)
• Originally "Shasta (?) Formation", but "Chico formation. Upper Cretaceous" in Clark and Twitchell 1915. Probably Redding Formation.
•"Probably of Turonian Age" in Anderson 1958.
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Primary reference: W. B. Clark and M. W. Twitchell. 1915. The Mesozoic and Cenozoic Echinodermata of the United States. United States Geological Survey Bulletin 54:1-341 [L. Villier/J. Millet/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 203437: authorized by Mark Uhen, entered by Mark Uhen on 15.08.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Hemiaster californicus n. sp.
Hemiaster californicus n. sp. Clark 1891 heart urchin |