Where: Los Angeles County, California (34.1° N, 118.4° W: paleocoordinates 34.1° N, 118.4° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Rancholabrean (0.3 - 0.0 Ma)
• "These excavations all included a Late Pleistocene biota, but assignment of exact ages is impossible in most cases because most of the Pierce beetle specimens are without stratigraphic data."
• group of beds-level stratigraphic resolution
Environment/lithology: tar; poorly lithified tar
Size classes: macrofossils, mesofossils
Collected in 1915; reposited in the LACM
• Pit 81 was excavated en masse
Primary reference: W. D. Pierce. 1946. Fossil arthropods of California 11. Descriptions of the dung beetles (Scarabaeidae) of the tar pits. Bulletin of the Southern California Academy of Sciences 45:119-131 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 152006: authorized by Matthew Clapham, entered by Matthew Clapham on 02.11.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
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| Insecta | |
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Canthon sp.2, "Canthon praticola" = Canthon (Boreocanthon) praticola, ? Deltochilum sp.2, Copris sp.2, ? Onthophagus sp.2, Onthophagus everestae n. sp., "Paleocopris labreae n. sp." = Phanaeus labreae, Serica kanakoffi n. sp.4
Canthon sp.2 Hoffmannsegg 1817 scarab beetle LACMIP 3058 (=C115b); leg assigned to O. everestae by Pierce
"Canthon praticola" = Canthon (Boreocanthon) praticola Le Conte 1859 scarab beetle LACMIP 2592 (=C117a), 2593 (=C118a)
? Deltochilum sp.2 Eschscholtz 1822 scarab beetle LACMIP 3060 (=C116b), assigned to P. labreae by Pierce
Copris sp.2 Geoffroy 1762 scarab beetle LACMIP 3062 (=C116d), 3063 (=C116e), assigned to P. labreae by Pierce
? Onthophagus sp.2 Latreille 1802 scarab beetle LACMIP 3061 (=C116c), assigned to P. labreae by Pierce
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