Confusion Range CONR-68 (Permian of the United States)

Where: Millard County, Utah (39.3° N, 113.7° W: paleocoordinates 14.2° N, 35.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Gerster Formation (Park City Group), Capitanian (265.1 - 259.9 Ma)

• 68 feet above base of measured section

•originally entered as Wordian: changed to Capitanian on 19 September 2006

• group of beds-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, silty, cherty/siliceous packstone

• cherty, silty, brachiopod packstone

Size class: macrofossils

Preservation: replaced with silica

Collection methods: bulk, chemical,

Primary reference: B. R. Wardlaw. 1977. The biostratigraphy and paleoecology of the Gerster Limestone (Upper Permian) in Nevada and Utah. U.S.G.S. Open File Report 77(470):1-125 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 39720: authorized by David Bottjer, entered by Matthew Clapham on 05.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Deltopectinidae
 Pectinida - Heteropectinidae
Girtypecten sp. Newell 1938 scallop
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
"Ramose bryozoa"
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Strophomenata
 Productida - Echinoconchidae
 Productida - Productellidae
cf. Echinauris subhorrida Meek 1877
Written "Echinauris" subhorrida
 Productida - Linoproductidae
cf. Grandaurispina "n. sp. A" Muir-Wood and Cooper 1960
Written "Grandaurispina" n. sp. A
 Orthotetida - Derbyiidae
Derbyia sulca Branson 1930
Rhynchonellata
 Athyridida - Athyrididae
Composita mira Girty 1899
 Terebratulida - Dielasmatidae
 Spiriferinida - Pennospiriferinidae
 Rhynchonellida - Wellerellidae
Phrenophoria "n. sp. A" Cooper and Grant 1969