Where: Ventura County, California (34.3° N, 118.7° W: paleocoordinates 35.1° N, 104.6° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Llajas Formation, Lutetian (47.8 - 41.3 Ma)
• The stewart bed is a 1 m thick sandstone unit in the middle of the LLajas formation. Lutetian, chron 21r according to Squires (2001).
• bed-level stratigraphic resolution
Environment/lithology: offshore; bioturbated sandstone
Size class: macrofossils
Reposited in the LACM
Collection methods: bulk,
• Repository: Formerly California State University Northridge (CSUN)
Primary reference: R. L. Squires. 1984. Megapaleontology of the Eocene Llajas Formation, Simi Valley, California. Contributions in Science, Natural History Museum of Los Angeles County 350:1-76 [M. Clapham/M. Clapham]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 200838: authorized by Jonathan Marcot, entered by Jonathan Marcot on 22.04.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
"? Trochocyathus striatus" = Trochosmilia (Acrosmilia) striata
"? Trochocyathus striatus" = Trochosmilia (Acrosmilia) striata Gabb 1864 stony coral | |
Bivalvia | |
Nayadina (Exputens) llajasensis Clark 1934 oyster | |
Crassatella uvasana Conrad 1855 clam | |
Scaphopoda | |
Dentalium stentor Anderson and Hanna 1925 tusk shell | |
Gastropoda | |
Architectonica (Stellaxis) cognata Gabb 1864 sundial | |
Eocernina hannibali Dickerson 1914 snail
Pachycrommium clarki Stewart 1927 snail | |
"Ectinochilus (Macilentos) macilentus" = Rimella macilenta
"Ectinochilus (Macilentos) macilentus" = Rimella macilenta White 1889 true conch | |
Surculites mathewsonii Gabb 1864 turrid | |
"Galeodea (Caliagaleodea) californica" = Galeodea californica
"Galeodea (Caliagaleodea) californica" = Galeodea californica Clark 1942 snail | |
|