Also known as LACMIP loc. 23778
Where: Shasta County, California (40.5° N, 122.6° W: paleocoordinates 41.6° N, 82.7° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Bald Hills Member (Budden Canyon Formation), Early/Lower Cenomanian (99.6 - 93.5 Ma)
• "The Bald Hills Fm. ranges in age from upper Albian through Cenomanian and possibly into lower Turonian." JA: the Bald Hills is actually a member of the Budden Canyon Formation and Lower Cenomanian according to Murphy and Rodda 1996
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified conglomerate
Size class: macrofossils
Collection methods: mechanical,
Primary reference: M. A. Murphy and P. U. Rodda. 1960. Mollusca of the Cretaceous Bald Hills Formation of California. Journal of Paleontology 34(5):835-858 [J. Alroy/M. Sommers/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 1789: authorized by John Alroy, entered by Mike Sommers on 08.06.1999, edited by Jonathan Marcot and Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Ampullina stantoni, Ampullina mona n. sp.
Ampullina mona n. sp. Murphy and Rodda 1960 snail | |
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Turritella xylina3 Squires and Saul 2006 turret shell originally entered as "Turritella cf. robertiana"
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Cephalopoda | |
Pseudhelicoceras sp. Spath 1922 ammonite | |
Desmoceras (Pseudouhligella) argonauticum1, "Mesopuzosia colusaense" = Puzosia (Anapuzosia) tucuyensis
Desmoceras (Pseudouhligella) argonauticum1 Anderson 1958 ammonite (Pseudouhligella) - originally entered as "Desmoceras cf. argonauticum"
"Mesopuzosia colusaense" = Puzosia (Anapuzosia) tucuyensis von Buch 1850 ammonite |