Also known as LACMIP loc. 10880
Where: Orange County, California (33.7° N, 117.6° W: paleocoordinates 39.4° N, 87.8° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Pleasants Member (Williams Formation), Late/Upper Campanian (83.5 - 70.6 Ma)
• LITHOSTRATIGRAPHIC RELATIONS: From the Pleasants Sandstone, for which lithostratigraphic relationships are not discussed. AGE: Upper Campanian in text; on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: Not stated in text.
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified sandstone
Size class: macrofossils
Collected by Popenoe in 1933; reposited in the LACM
Collection methods: surface (in situ),
• COLLECTOR: Popenoe, 1933. REPOSITORY: California Institute of Technology (at the time).
Primary reference: W. P. Popenoe. 1942. Upper Cretaceous formations and faunas of southern California. Bulletin of the American Association of Petroleum Geologists 26(2):162-187 [J. Marcot/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 220906: authorized by Jonathan Marcot, entered by Jonathan Marcot on 25.06.2021
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Cucullaea youngi" = Cucullaea (Idonearca) youngi
"Cucullaea youngi" = Cucullaea (Idonearca) youngi Waring 1917 clam | |
Brachidontes bifurcatus Popenoe 1937 mussel | |
"Flaventia lens" = Paraesa lens, "Trigonocallista bowersiana" = Calva (Egelicalva) bowersiana
"Flaventia lens" = Paraesa lens Gabb 1864 venus clam
"Trigonocallista bowersiana" = Calva (Egelicalva) bowersiana Cooper 1894 venus clam | |
Cymbophora ashburnerii Gabb 1864 clam | |
Gastropoda | |
"Margarites ornatissima" = Atira ornatissima
"Margarites ornatissima" = Atira ornatissima Gabb 1864 snail | |
Gyrodes expansa Gabb 1864 moon snail | |
"Fulgur hilgardi" = Pentzia hilgardi
"Fulgur hilgardi" = Pentzia hilgardi White 1889 snail | |
| |
"Oligoptycha obliqua" = Biplica obliqua
"Oligoptycha obliqua" = Biplica obliqua Gabb 1864 snail |