Also known as LACMIP loc. 11975
Where: Los Angeles County, California (34.1° N, 118.6° W: paleocoordinates 39.9° N, 88.7° W)
• coordinate stated in text
When: Tuna Canyon Formation, Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)
• Distribution section says "Tuna Canyon Formation," but locality description in the appendix says unnamed formation
Environment/lithology: submarine fan; lithology not reported
•""The paleoenvironment of the Tuna Canyon Formation closely resembles that of the Chatsworth Formation of Colburn et al. (1981) in the Simi Hills just to the north of the Santa Monica Mountains."
•"The mollusks at CSUN loc. 153 must have undergone post-mortem transport from shallow-water sites into deep-water, submarine-fan paleoenvironments of the Tun- ca Canyon Formation. Several of the species found at CSUN loc. 153 or in the immediate vicinity (e.g., Anchu- ra phaba, Volutoderma magna, Crassatella elongata. Cymbophora triangidata, Glycymeris (Glycymerita) veat- chii, Pterotrigonia evansana, and Pinna sp.) were nor- mal-marine, shallow-depth dwellers (10 to 50 m) that also have been reported as transported remains in bathyal sub- marine-fan deposits of Campanian age in the Chatsworth Formation in the Simi Hills (Saul & Alderson, 1981)."
Size class: macrofossils
Collected by John Alderson in 1974-1987
Primary reference: R. L. Squires and L. R. Saul. 2000. The buccinid gastropod Deussenia from Upper Cretaceous strata of California. The Veliger 43(2):118-125 [J. Marcot/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 215264: authorized by Jonathan Marcot, entered by Jonathan Marcot on 05.11.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Metaplacenticeras pacificum Smith 1900 ammonite | |
Bivalvia | |
"Indogrammatodon sp." = Grammatodon (Indogrammatodon)
"Indogrammatodon sp." = Grammatodon (Indogrammatodon) Cox 1937 clam | |
Cucullaea sp. Lamarck 1801 clam | |
Pinna sp. Linnaeus 1758 oyster | |
"Isognomidae indet." = Isognomoninae
| |
Inoceramus sp. Sowerby 1814 clam | |
Pterotrigonia evansana Meek 1864 clam | |
| |
Clisocolus dubius Gabb 1864 clam | |
Crassatella elongata Anderson 1958 clam | |
Gastropoda | |
Anchura phaba Elder and Saul 1996 snail | |
Volutoderma magna Packard 1922 volute | |
Zinsitys kingi snail | |
Deussenia californiana n. sp.
Deussenia californiana n. sp. Squires and Saul 2000 snail |