Where: San Bernardino County, California (34.8° N, 117.0° W: paleocoordinates 34.1° N, 112.7° W)
• coordinate based on political unit
When: Hector Formation, Miocene (23.0 - 5.3 Ma)
Environment/lithology: terrestrial
Primary reference: M. O. Woodburne, S. T. Miller, and R. H. Tedford. 1982. Stratigraphy and geochronology of Miocene strata in the central Mojave Desert, California. Geologic excursions in the California deserts and adjacent transverse ranges: fieldtrip guidebook and volume prepared for the joint meeting of the Cordilleran Section--GSA and Pacific Section--AAPG, April 9-11, 2001, Universal City, California : fieldtrips 1-4 47-64 [J. Alroy/J. Alroy/J. Marcot]more details
PaleoDB collection 19425: authorized by John Alroy, entered by John Alroy on 05.01.1995
Creative Commons license: CC BY (attribution)
Taxonomic list
somewhat above a basalt dated at 18.6 +/- 0.3 Ma (see Merychyus Locality)
apparently spans multiple polarity intervals, see MacFadden et al. 1990
Mammalia | |
"Dromomerycidae indet." = Dromomerycinae
| |
Merychyinae indet. Simpson 1945 oreodont |