Also known as UCMP V66130

Where: Eureka County, Nevada (39.5° N, 116.0° W: paleocoordinates 12.5° N, 37.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Carbon Ridge Formation, Cisuralian (298.9 - 273.0 Ma)

• When it was found, its age was presumed to be Devonian or Carboniferous, since the fossiliferous deposits in that area were thought to be of those ages. The museum label still states that the locality is Devonian or Carboniferous, with a handwritten notation "Mississippian" (WMI, pers. obs. 2014). Recent references give the age as Upper Carboniferous (Obruchev 1964), ?Carboniferous (Zangerl 1981), and Carboniferous, ?Pennsylvanian (Ginter et al. 2010). However, there are no Devonian or Carboniferous deposits within 1.6 km of Eureka. The specimen must have come from the lower Permian Carbon Ridge Formation (Nolan et al. 1971, 1974), which has been dated to the Wolfcampian through Leonardian Stages by foraminiferal biostratigraphy (Stevens et al. 1979; Strawson 1981; Davydov et al. 1997).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Reposited in the UCMP

Primary reference: B. Dean. 1898. On a new species of Edestus, E. lecontei, from Nevada. Transactions of the New York Academy of Sciences 16:61-69 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 196771: authorized by Matthew Clapham, entered by Matthew Clapham on 06.10.2018

Creative Commons license: CC BY (attribution)