Where: Ventura County, California (34.8° N, 119.2° W: paleocoordinates 35.5° N, 105.1° W)
• outcrop-level geographic resolution
When: Juncal Formation, Lutetian (47.8 - 41.3 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; poorly lithified, lag, argillaceous siltstone and poorly lithified sandstone
Size class: macrofossils
Reposited in the LACM
Collection methods: bulk,
• Samples were taken for microfossil (nannos and planktonic forams) collection, but all were barren.
Primary reference: R. L. Squires. 1988. Eocene Macropaleontology of Northern Lockwood Valley, Ventura County, California. Contributions in Science (Natural History Museum of Los Angeles County) 398:1-23 [A. Miller/K. Layou]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 5540: authorized by Arnold Miller, entered by Karen Layou on 12.10.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Glycymeris sagittata" = Glycymeris (Glycymerita) sagittata
"Glycymeris sagittata" = Glycymeris (Glycymerita) sagittata Gabb 1864 clam | |
"Barbatia cf. cliffensis" = Barbatia (Cucullaearca) cliffensis
"Barbatia cf. cliffensis" = Barbatia (Cucullaearca) cliffensis Hanna 1927 clam | |
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle | |
Pitar joaquinensis Vokes 1939 venus clam | |
Gastropoda | |
Cylichnina tantilla Anderson and Hanna 1925 snail | |
Calyptraea diegoana Conrad 1855 slipper shell | |
Pachycrommium clarki Stewart 1927 snail | |
"Ectinochilus macilentus" = Rimella macilenta
"Ectinochilus macilentus" = Rimella macilenta White 1889 true conch | |
Paraseraphs erraticus Cooper 1894 snail | |
"Ficopsis crescentensis" = Ficus
| |
Lyria andersoni Waring 1917 volute | |
Bonellitia paucivaricata Gabb 1864 snail | |
"Olequahia domenginica" = Ranella domenginica
"Olequahia domenginica" = Ranella domenginica Vokes 1939 snail | |
Turritella buwaldana Dickerson 1916 turret shell |