Meier Canyon (Paleocene of the United States)

Also known as UCR 4573, UCR 6668, UCR 6670, UCR 6671, UCR 6682, UCR 6805, UCR 6806, UCR 6825, UCR 6873, UCR 6899, UCR, 7319, 7320

Where: Los Angeles County, California (34.3° N, 118.7° W: paleocoordinates 38.0° N, 99.2° W)

• coordinate based on political unit

When: Simi Formation, Thanetian (59.2 - 56.0 Ma)

Environment/lithology: open shallow subtidal; conglomerate

Size class: macrofossils

Primary reference: W. J. Zinsmeister. 1983. New Late Paleocene molluscs from the Simi Hills, Ventura County, Califonia. Journal of Paleontology 57(6):1282-1303 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 205394: authorized by Mark Uhen, entered by Mark Uhen on 14.10.2019, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Ostreida - Ostreidae
"Ostrea simiensis n. sp." = Acutostrea simiensis
"Ostrea simiensis n. sp." = Acutostrea simiensis Zinsmeister 1983 oyster
 Cardiida - Ungulinidae
Diplodonta (Zemysina) pacifica n. sp.
Diplodonta (Zemysina) pacifica n. sp. Zinsmeister 1983 clam
 Cardiida - Veneridae
Pitar addicotti n. sp., Pitar murphyi n. sp.
Pitar addicotti n. sp. Zinsmeister 1983 venus clam
Pitar murphyi n. sp. Zinsmeister 1983 venus clam
Gastropoda
 Trochoidea - Turbinidae
Margarites semiornata n. sp.
Margarites semiornata n. sp. Zinsmeister 1983 snail
 Heterostropha - Ringiculidae
Gilbertina popenoei n. sp.
Gilbertina popenoei n. sp. Zinsmeister 1983 snail
 Epitonioidea - Epitoniidae
Acrilla (Ferminoscala) durhami n. sp.
Acrilla (Ferminoscala) durhami n. sp. Zinsmeister 1983 wentletrap
 Cerithioidea - Turritellidae
Turritella cornuatus n. sp.
Turritella cornuatus n. sp. Zinsmeister 1983 turret shell
 Sorbeoconcha - Naticidae
Gyrodes (? Gyrodes) robustus3, Amauropsis meierensis n. sp.
Gyrodes (? Gyrodes) robustus3 Waring 1917 moon snail
from UCR loc. 6899
Amauropsis meierensis n. sp. Zinsmeister 1983 moon snail
 Sorbeoconcha - Cypraeidae
Propustularia kemperae1
Propustularia kemperae1 Nelson 1925 cowry
from UCR loc. 4573
 Neogastropoda - Turbinellidae
Fulgurofusus waringi n. sp., Fulgurofusus darraghi n. sp.
Fulgurofusus waringi n. sp. Zinsmeister 1983 snail
Fulgurofusus darraghi n. sp. Zinsmeister 1983 snail
 Neogastropoda - Pyropsidae
Pyropsis fantozzii5
Pyropsis fantozzii5 Saul 1988 snail
from UCR loc. 6670
 Neogastropoda - Perissityidae
"Cophocara stewarti n. sp." = Perissitys stewarti, Nekewis simiensis n. sp.
"Cophocara stewarti n. sp." = Perissitys stewarti Zinsmeister 1983 snail
Nekewis simiensis n. sp. Zinsmeister 1983 snail
 Neogastropoda - Turridae
Parasyrinx hickmani n. sp.
Parasyrinx hickmani n. sp. Zinsmeister 1983 turrid
 Neogastropoda - Volutidae
Fulgoraria (Psephaea) zinsmeisteri2
Fulgoraria (Psephaea) zinsmeisteri2 Mount 1976 volute
from UCR loc. 6825
 Neogastropoda - Tudiclidae
? Heteroterma acrita4
? Heteroterma acrita4 Saul 1988 snail
from UCR loc. 6899
 Sorbeoconcha - Ranellidae
Gyrineum judithi n. sp.
Gyrineum judithi n. sp. Zinsmeister 1983 triton shell
 Architaenioglossa - Ampullinidae
Eocernina hespericosta n. sp.
Eocernina hespericosta n. sp. Zinsmeister 1983 snail
1Groves and Squires 2023; 2Mount 1976; 3Popenoe et al. 1987; 4Saul 1988; 5Saul 1988