Fossil Mountain, Grand Canyon, Beta bed 2 (Permian of the United States)

Where: Arizona (36.2° N, 112.4° W: paleocoordinates 10.2° N, 36.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Fossil Mountain Member (Kaibab Formation), Kungurian (279.3 - 272.3 Ma)

• Beta member

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, gray, cherty/siliceous limestone

• Limestone, gray; beds fairly thin; contains irregular chert throughout; weathers to slope above, cliff below; fossiliferous

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Grand Canyon National Park Museum (types or all now at USNM)

Primary reference: E. D. McKee. 1938. The environment and history of the Toroweap and Kaibab Formations of northern Arizona and southern Utah. Carnegie Institution of Washington Publication 492:1-268 [G. Webster/G. Webster/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 148694: authorized by Matthew Clapham, entered by Matthew Clapham on 24.07.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Stauriida - Lophophyllidae
"Lophophyllum" sp.
"Lophophyllum" sp. Milne-Edwards and Haime 1850 horn coral
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Rhynchonellata
 Athyridida - Athyrididae
Composita sp.
Composita sp. Brown 1849
 Spiriferinida - Spiriferinidae
"Spiriferina" sp.
"Spiriferina" sp. d'Orbigny 1847
 Rhynchonellida - Petasmariidae
"Pugnoides" sp.
"Pugnoides" sp. Weller 1910
Strophomenata
 Productida - Productidae
"Productus bassi" = Peniculauris bassi
"Productus bassi" = Peniculauris bassi McKee 1938
 Productida - Productellidae
Echinauris sp., "Productus occidentalis" = Rugatia occidentalis
Echinauris sp. Muir-Wood and Cooper 1960
"Productus occidentalis" = Rugatia occidentalis Newberry 1861
 Orthotetida - Meekellidae
Meekella sp.