UCMP D-842, Potter Ridge (Permian of the United States)

Also known as LACMIP 1116

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 320 feet (97.5 meters) above D-841. 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 solitary rugose corals with and without axial structures, cerioid rugose corals, syringoporid corals, large bellerophontid gastropods.

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 62683: authorized by Tom Olszewski, entered by Leigh Fall on 25.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Stauriida - Cyathopsidae
? Cyathopsidae indet. Dybowski 1873 horn coral
Cyathopsid (?)
 Stauriida - Petalaxidae
"Petalaxis pecki n. sp." = Petalaxis besti, "Petalaxis kennedyi n. sp." = Petalaxis besti
"Petalaxis pecki n. sp." = Petalaxis besti Wilson 1982 horn coral
"Petalaxis kennedyi n. sp." = Petalaxis besti Wilson 1982 horn coral
 Stauriida - Durhaminidae
"Kleopatrina (Porfirievella) mckibbinae n. sp." = Pararachnastraea mckibbinae
"Kleopatrina (Porfirievella) mckibbinae n. sp." = Pararachnastraea mckibbinae Wilson 1982 horn coral
 Stauriida - Kleopatrinidae
"Kleopatrina (Kleopatrina) raubae n. sp." = Kleopatrina raubae
"Kleopatrina (Kleopatrina) raubae n. sp." = Kleopatrina raubae Wilson 1982 horn coral
 Auloporida - Multithecoporidae
"Syringopora mccutcheonae" = Neomultithecopora mccutcheonae
"Syringopora mccutcheonae" = Neomultithecopora mccutcheonae Wilson and Langenheim 1962 tabulate coral