Also known as LACMIP 43085

Where: Riverside County, California (34.0° N, 116.6° W)

• Paleocoordinates: 35.6° N, 114.7° W (Wright 2013)

• coordinate stated in text

When: "Imperial" Formation, Messinian (7.2 - 5.3 Ma)

• The sedimentary rocks at Super Creek previously were con- sidered to belong to the Imperial Formation s.s. (Woodring, 1932; Bramkamp, 1935), based on biostratigraphic evidence rather than a lithologic correlation (Powell and LaFollette, 2012). The rocks at Super Creek (“Imperial” Formation) were deposited during the Late Miocene (McDougall et al., 1999), and differ from rocks of the Imperial Formation s.s. in their prov- enance, lithology, and fauna, including the percentage of Cari- bophile taxa (Powell and LaFollette, 2012). McDougall (2008) used microfossil biostratigraphy and sea level highstands to con- strain the age of the Super Creek “Imperial” Formation to between 6.3–6.0 Ma (Late Miocene).

Environment/lithology: marine; siltstone

Size class: macrofossils

Reposited in the LACM

Primary reference: M. J. Vendrasco, C. L. Powell, II, and P. LaFollette. 2022. The first Miocene chiton fauna from the northeastern Pacific. Journal of Paleontology 96(5):1047-1060 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 227380: authorized by Mark Uhen, entered by Mark Uhen on 08.10.2022

Creative Commons license: CC0 (CC0)