UCMP D-845, Potter Ridge (Permian of the United States)

Where: Shasta County, California (40.7° N, 122.3° W: paleocoordinates 13.0° N, 43.3° W)

• coordinate stated in text

When: F Member (McCloud Formation), Sakmarian (293.5 - 290.1 Ma)

• Beds 105 feet (31.9 meters) above D-842. Fusulinid zone F.

Environment/lithology: marine; lithified limestone and lithified, cherty/siliceous limestone

• Clear, shallow, warm marine water with full access to the open sea.
• Lithologic information from stratigraphic section in Fig. 2. Thickness recorded for this section include sills of quartz diorite.

Size class: macrofossils

Reposited in the UCMP

Collection methods: peel or thin section,

• Large cerioid rugose corals.

Primary reference: E. C. Wilson. 1982. Wolfcampian rugose and tabulate corals (Coelenterata: Anthozoa) from the Lower Permian McCloud Limestone of northern California. Contributions in Science, National History Museum of Los Angeles County 337:1-90 [T. Olszewski/L. Fall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 62685: authorized by Tom Olszewski, entered by Leigh Fall on 25.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Stauriida - Petalaxidae
Petalaxis sutherlandi n. sp.
Petalaxis sutherlandi n. sp. Wilson 1982 horn coral
 Stauriida - Kleopatrinidae
Langenheimia klamathensis n. gen. n. sp.
Langenheimia klamathensis n. gen. n. sp. Wilson 1982 horn coral