UCMP loc. 2134, Santa Ana Mountains (Cretaceous to of the United States)

Where: Orange County, California (33.7° N, 117.6° W: paleocoordinates 38.5° N, 84.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Holz shale Member (Ladd Formation), Late/Upper Turonian to Late/Upper Turonian (93.5 - 70.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by E. L. Packard; reposited in the UCMP

Primary reference: E. L. Packard. 1922. New species from the Cretaceous of the Santa Ana Mountains, California. University of California Publications, Bulletin of the Department of Geological Sciences 13(10):413-462 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 207814: authorized by Jonathan Marcot, entered by Jonathan Marcot on 15.02.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Poromyida - Poromyidae
"Homomya hardingensis n. sp." = Liopistha (Psilomya) hardingensis
"Homomya hardingensis n. sp." = Liopistha (Psilomya) hardingensis Packard 1922 clam