Where: Ventura County, California (34.2° N, 118.7° W: paleocoordinates 38.0° N, 99.2° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Santa Susana Formation, Thanetian (59.2 - 56.0 Ma)
• Age: late Paleocene ("Meganos Stage"). 90 m stratigraphically below the bottom of the overlying Llajas Formation.
• group of beds-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; lithified, fine-grained sandstone
Size class: macrofossils
Collected by R.L. Squires in 1989; reposited in the LACM
Primary reference: R. L. Squires. 1990. New Paleogene Fimbria (Mollusca: Bivalvia) from the Pacific coast of southwestern North America. Journal of Paleontology 64:552-556 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 185193: authorized by Matthew Clapham, entered by Matthew Clapham on 15.04.2017, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
? Astrocoenia sp. Milne-Edwards and Haime 1848 stony coral | |
Gastropoda | |
Calyptraea diegoana Conrad 1855 slipper shell | |
Turritella buwaldana Dickerson 1916 turret shell | |
Velates perversus Gmelin 1791 snail | |
Bivalvia | |
Nuculana (Saccella) gabbii Conrad 1866 pointed nut clam | |
Fimbria susanensis Squires 1990 clam | |
"Macoma rosa" = Macoma (Rexithaerus) rosa
"Macoma rosa" = Macoma (Rexithaerus) rosa Hanna 1927 tellin clam |