ammonites
LACMIP 6183, Tombstone Mountain, Shasta County (Permian of the United States)

Where: California (41.0° N, 122.3° W: paleocoordinates 18.3° N, 39.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: McCloud Formation, Artinskian (290.1 - 279.5 Ma)

• 865 to 880 feet above the base of measured section.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, gray, conglomeratic limestone

• Limestone, medium gray, weathers same, conglomeratic, thin-bedded, with abundant cerioid corals (some overturned), large solitary corals, fusulinids.

Size class: macrofossils

Collected by E.C. Wilson, P.T. Gavin, P.G. Owen, E. Scott in 1982, 1983, 1984

Primary reference: E. C. Wilson. 1985. Rugose corals (Coelenterata, Anthozoa) from the Lower Permian McCloud Limestone at Tombstone Mountain, northern California. Contributions in Science, Natural History Museum of Los Angeles County 366:1-11 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120711: authorized by Matthew Clapham, entered by Matthew Clapham on 20.11.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)