Where: Ventura County, California (34.3° N, 118.7° W)
• Paleocoordinates: 39.6° N, 96.9° W (Wright 2013)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Llajas Formation, Lutetian (48.1 - 41.0 Ma)
• From the "Domengine" horizon of the Eocene of Simi Valley.
• group of beds-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; lithified, fine-grained, brown, yellow sandstone
Size class: macrofossils
Collected by R. B. Stewart; reposited in the UCMP
Primary reference: B. L. Clark. 1934. A New Genus and Two New Species of Lamellibranchiata from the Middle Eocene of California. Journal of Paleontology 8(3):270-272 [J. Marcot/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 166460: authorized by Matthew Clapham, entered by Kristina Okamoto on 14.02.2015, edited by Jonathan Marcot and Patricia Holroyd
Creative Commons license: CC0 (CC0)
Taxonomic list
Bivalvia | |
"Crassatellites indentata" = Crassatella
"Crassatellites indentata" = Crassatella clam | |
Venericardia (Pacificor) calafia n. sp.5
| |
"Ostrea idriaensis" = Acutostrea idriaensis
"Ostrea idriaensis" = Acutostrea idriaensis Gabb 1869 oyster | |
"Exputens llajasensis n. sp." = Nayadina (Exputens) llajasensis3
| |
Gastropoda | |
"Amaurellina clarki" = Pachycrommium clarki, "Globularia hannibali" = Eocernina hannibali
"Amaurellina clarki" = Pachycrommium clarki Stewart 1927 snail
"Globularia hannibali" = Eocernina hannibali Dickerson 1914 snail | |
| |
"Galeodea (Caliagaleodea) californica n. sp." = Galeodea californica4
| |
"Volutocorbis lajollaensis" = Lyrischapa lajollaensis
"Volutocorbis lajollaensis" = Lyrischapa lajollaensis Hanna 1927 volute | |
Surculites mathewsonii Gabb 1864 turrid | |
Cephalopoda | |
Aturia myrlae2 Hanna 1927 |