Also known as LACMIP loc. 6096, LACMIP loc. 10105
Where: Orange County, California (33.7° N, 117.6° W: paleocoordinates 39.4° N, 87.8° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Metaplacenticeras pacificum ammonoid zone, Pleasants Member (Williams Formation), Late/Upper Campanian (83.5 - 70.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; lithified sandstone
Size class: macrofossils
Collected by W.P. Popenoe in 1933; reposited in the LACM
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 72057: authorized by Wolfgang Kiessling, entered by Uta Merkel on 24.05.2007, edited by Matthew Clapham and Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Metaplacenticeras pacificum Smith 1900 ammonite
Metaplacenticeras californicum Anderson 1902 ammonite | |
Baculites chicoensis Trask 1856 ammonite | |
Gastropoda | |
"Margarites ornatissima" = Atira ornatissima
"Margarites ornatissima" = Atira ornatissima Gabb 1864 snail | |
| |
"Fulgur hilgardi" = Pentzia hilgardi
"Fulgur hilgardi" = Pentzia hilgardi White 1889 snail | |
| |
Volutoderma averillii Gabb 1864 volute
Volutoderma santana Packard 1922 volute | |
? Euspira sp. Agassiz 1837 moon snail | |
"Actaeon normalis" = Acteon
"Actaeon normalis" = Acteon snail | |
"Oligoptycha obliqua" = Biplica obliqua
"Oligoptycha obliqua" = Biplica obliqua Gabb 1864 snail | |
Odostomia santana Packard 1922 snail | |
"Cylichna cf. costata" = Scaphander (Mirascapha) costatus
"Cylichna cf. costata" = Scaphander (Mirascapha) costatus Gabb 1864 snail | |
Bivalvia | |
Trinacria cor n. sp.
Trinacria cor n. sp. Popenoe 1937 clam | |
"Cucullaea youngi" = Cucullaea (Idonearca) youngi
"Cucullaea youngi" = Cucullaea (Idonearca) youngi Waring 1917 clam | |
"Glycymeris veatchii" = Glycymerita veatchii7
| |
Brachidontes bifurcatus n. sp.
Brachidontes bifurcatus n. sp. Popenoe 1937 mussel | |
Clisocolus cordatus Whiteaves 1879 clam | |
Martesia ? clausa Gabb 1864 clam | |
Legumen ooides, "Flaventia lens" = Paraesa lens, "Trigonocallista bowersiana" = Calva (Egelicalva) bowersiana
Legumen ooides Gabb 1864 venus clam
"Flaventia lens" = Paraesa lens Gabb 1864 venus clam
"Trigonocallista bowersiana" = Calva (Egelicalva) bowersiana Cooper 1894 venus clam | |
| |
"Trigonia cf. evansana" = Pterotrigonia evansana
"Trigonia cf. evansana" = Pterotrigonia evansana Meek 1864 clam | |
"Acila demessa" = Acila (Truncacila) demessa
"Acila demessa" = Acila (Truncacila) demessa Finlay 1927 divaricate nutclam | |
"Lembulus striatula" = Leda striatula
"Lembulus striatula" = Leda striatula Forbes 1846 pointed nut clam | |
Scaphopoda | |
Dentalium whiteavesi Anderson and Hanna 1935 tusk shell |