Also known as Simi Hills
Where: Los Angeles County, California (34.3° N, 118.6° W: paleocoordinates 38.6° N, 97.8° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Santa Susana Formation, Paleocene (66.0 - 56.0 Ma)
• "in the 'Martinez marine member' of Nelson (1925)... in a prominently exposed [single] bed... 479 m above the lower contact with the Simi Conglomerate" and belogns to "the 'Martinez Stage'" that "is apparently equivalent to the Ynezian Forminiferal Stage... early Paleocene to late Paleocene"
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, gray sandstone
Size class: macrofossils
Collected by J. D. Mount in 1968
Primary reference: J. D. Mount. 1976. A new species of Fulgoraria (Mollusca: Gastropoda) from the Paleocene of southern California. Journal of Paleontology 50(1):87-89 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 90071: authorized by John Alroy, entered by John Alroy on 06.07.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
"Flabellum remondianum" = Flabellum cuneiforme
"Flabellum remondianum" = Flabellum cuneiforme Lonsdale 1845 stony coral | |
Bivalvia | |
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Macrocallista cf. furlongi Nelson 1925 venus clam | |
Gastropoda | |
"Acrilla (Undiscala) sp." = Amaea (Undiscala)
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"Amaurellina martinezensis" = Amauropsis martinezensis
"Amaurellina martinezensis" = Amauropsis martinezensis Dickerson 1914 moon snail | |
Scaphopoda | |
Dentalium cf. cooperi Gabb 1864 tusk shell | |
Rhynchonellata | |
Kingena simiensis Waring 1917 |