. Bulletin. Science. SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. Fig. 1. Index map of the southeastern San Joaquin Basin north of Bakersfield, Kern County, California indicating collection site (LACM locality 6602) of Totoaba fitchi, sp. nov. (LACM 151552), holotype and referred specimens, late early Miocene, upper Olcese Sand. Local outcrops of the Olcese Sand indicated by shaded area. Modified after Olson (1990). the locality to the "lower part of the Round Mountain Silt, below the Sharktooth Hill bone ; Neither provided accurate stratigraphic nor locality data. Fre- quently, the
. Bulletin. Science. SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. Fig. 1. Index map of the southeastern San Joaquin Basin north of Bakersfield, Kern County, California indicating collection site (LACM locality 6602) of Totoaba fitchi, sp. nov. (LACM 151552), holotype and referred specimens, late early Miocene, upper Olcese Sand. Local outcrops of the Olcese Sand indicated by shaded area. Modified after Olson (1990). the locality to the "lower part of the Round Mountain Silt, below the Sharktooth Hill bone ; Neither provided accurate stratigraphic nor locality data. Fre- quently, the delineation between the Olcese Sand and overlying Round Mountain Silt is indistinct due to a regressive event that separates the two units. A change in color and an increase in mica content in the Round Mountain Silt is the most noticeable character of the boundary (Olson 1990). In the Barker's Ranch area, the upper Olcese Sand is composed of fossiliferous very fine- to fine-grained,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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