Also known as Locality Mu 2

Where: Boone County, Arkansas (36.2° N, 93.2° W: paleocoordinates 8.9° S, 31.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Witts Springs Formation, Morrowan (323.2 - 318.6 Ma)

• The Hale formation and the Bloyd shale can be differentiated and most of their subdivisions recognized as far southeast as the northwest part of Newton County, in the vicinity of Compton. Southeast of this area, there is a gradual increase in sand content and a thickening of the Marrow section. In this region the upper part of the Hale formation and the various subdivisions recognized in Washington County cannot be differentiated. East of Compton, therefore, or for practical purposes east of Madison County, the rocks of Morrow age between the Imo formation below and the Atoka formation above are called the Witts Springs formation

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, lenticular limestone

Size class: macrofossils

Reposited in the USGS

Primary reference: M. Gordon. 1964. Carboniferous Cephalopods of Arkansas. United States Geological Survey Professional Paper 460:1-322 [J. Alroy/C. Simpson/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 43430: authorized by John Alroy, entered by Carl Simpson on 13.08.2004

Creative Commons license: CC BY (attribution)