Granite Mountain North, bed 25 (Carboniferous of the United States)

Where: Juab County, Utah (39.6° N, 113.7° W: paleocoordinates 1.2° S, 47.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Goniatites americanus ammonoid zone, Camp Canyon Member (Chainman Formation), Asbian (339.4 - 336.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore ramp; lithified shale and lithified limestone

• distal foredeep/lower carbonate ramp
• limestone concretions in shale around the upper margin of the "olistholith" ("endothyrid bearing" limestone unit)

Size class: macrofossils

Preservation: cast

Primary reference: D. Korn and A. L. Titus. 2011. Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah). Bulletin of Geosciences 86(1):107-196 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 134502: authorized by Wolfgang Kiessling, entered by Uta Merkel on 09.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Goniatitida - Goniatitidae
Goniatites americanus Gordon 1971 ammonite
 Goniatitida - Dimorphoceratidae
Dimorphoceras rileyi Korn and Titus 2011 ammonite
 Goniatitida - Girtyoceratidae
Girtyoceras primum Korn and Titus 2011 ammonite
Calygirtyoceras arcticum Gordon 1957 ammonite
 Goniatitida - Entogonitidae
Entogonites acus Korn and Titus 2011 ammonite