USGS 1625, Marshall (Carboniferous of the United States)

Where: Sercy County, Arkansas (35.9° N, 92.6° W: paleocoordinates 10.8° S, 32.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Eumorphoceras milleri ammonoid zone, Fayetteville Formation, Pendleian (330.9 - 327.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Fayetteville Shale, base of 15 ft limestone bed, 80 ft (by barometer) below the top of the formation. AGE: Pendleian, based on ammonoid zonation.

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

• SPECIFIC LITHOLOGY: Limestone unit. LITHIFICATION: Lithified, assumed on the basis of figured specimens.

Size class: macrofossils

Collected by E.O. Ulrich, G.I. Adams in 1902; reposited in the USNM

Primary reference: R. H. Flower and M. Gordon. 1959. More Mississippian belemnites. Journal of Paleontology 33(5):809-842 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 84402: authorized by Austin Hendy, entered by Austin Hendy on 16.10.2008, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Only includes Cephalopoda. NOMENCLATURE: Authoritative publication, with modern nomenclature and species-resolution identifications.
Cephalopoda
 Hematitida - Hematitidae
Bactritimimus ulrichi n. sp. Flower and Gordon 1959 belemnite
 Goniatitida - Girtyoceratidae
Eumorphoceras (Edmooroceras) plummeri Miller and Youngquist 1949 ammonite
 Goniatitida - Glaphyritidae
Paracravenoceras ozarkense Gordon 1960 ammonite