Where: Contra Costa County, California (38.0° N, 122.2° W: paleocoordinates 37.5° N, 119.8° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Pinole Tuff Formation, Hemphillian (10.3 - 4.9 Ma)
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Reposited in the UCMP
Primary reference: R. A. Stirton. 1939. Cenozoic Mammal Remains From the San Francisco Bay Region. University of California Publications, Bulletin of the Department of Geological Sciences 24(13):339-410 [J. Alroy/J. Alroy/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 19479: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Patricia Holroyd and Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
dated at 5.3 +/- 0.1 Ma: Tedford et al. 1987, who place the fauna above the Mulholland Fm. but do not discuss their correlation; the stratigraphic position of the Pinole Tuff was clearly unknown to Stirton and is not mentioned by Creely et al. 1982, but Tedford et al. 1987 indicate that the tuff between the Green Valley and Tassajara Fms. is unambiguously correlated with the Pinole Tuff on geochemical grounds
some "Pinole Tuff" records may not pertain to this site
this forms most of the Pinole Tuff list of Merriam 1917, which also includes a rhino and a proboscidean
| Mammalia | |
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Borophagus sp.7 Cope 1892 bone-crushing dog indeterminate and listed under B. parvus on basis of geographic location only; "? Osteoborus sp."
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Cernictis hesperus n. sp. Hall 1935 mustelid carnivore | |
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Camelidae indet. Gray 1821 camel | |
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? Sphenophalos sp. Merriam 1909 pronghorn | |
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Miotomodon mayi n. sp.5
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| Actinopteri | |
"Smilodonichthys rastrosus" = Oncorhynchus rastrosus2
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