Basin Creek, Lincoln County (Permian of the United States)

Where: Wyoming (42.2° N, 110.8° W: paleocoordinates 14.3° N, 33.0° W)

When: Franson Member (Park City Formation), Wuchiapingian (259.9 - 254.2 Ma)

• "Phosphoria Formation" in Muir-Wood and Cooper - age and formation based on Ciriacks 1963. Davydov et al. 2017 dated an ash bed in the upper Meade Peak Member at 260.57 ± 0.07 / 0.14 / 0.31 Ma, indicating that the Meade Peak is as young as uppermost Capitanian.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Reposited in the USNM

Primary reference: H. Muir-Wood and G. A. Cooper. 1960. Morphology, classification and life habits of the Productoidea (Brachiopoda). Geological Society of America Memoir 81:1-447 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151257: authorized by Matthew Clapham, entered by Matthew Clapham on 25.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Productida - Strophalosiidae
Sphenalosia smedleyi n. gen. n. sp.
Sphenalosia smedleyi n. gen. n. sp. Muir-Wood and Cooper 1960