USGS 22986-PC (Carboniferous to of the United States)

Also known as Sando et al. Moffat Trail Loc.75

Where: Lincoln County, Wyoming (42.9° N, 110.8° W: paleocoordinates 1.5° N, 41.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Caninia zone, Moffat Trail Member (Amsden Formation), Chesterian to Chesterian (339.4 - 318.1 Ma)

• Limestone 210 ft above base of Amsden Fm. "Late Mississippian (Chesterian)."

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, dolomitic, shelly/skeletal, gray, yellow limestone

• moffat trail: predominantly light gray, medium to coarse grained, fossiliferous limestone composed largely of comminuted organic debris, mostly crinoidal, in beds 0.3 - 5 ft thick. brown, gray, or jasperoid chert nodules and lenses are common. thin intercalated beds of silty dolomite or dolomitic limestone that weather yellowish brown or buff occur sparsely. limestone at some localities contain considerable quantities of fine quartz sand, and some beds of fine grained quartz sandstone and quartzite are present. hoback canyon upper-half beds contain partings and beds of dark gray fissile clay shale. glory mountain member beds include ferruginous pisolites in thin crinoidal limestone. most of the larger fossils are abraded, fragmented, haphazardly oriented.

Reposited in the USGS

• "Collected by J.T. Dutro, Jr. and Mario Suarez, 1966."

Primary reference: W. J. Sando, M. Gordon, Jr., and J. T. Dutro. 1975. Stratigraphy and geologic history of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming. United States Geological Survey Professional Paper 848A:1-83 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 5738: authorized by John Alroy, entered by Mike Sommers on 17.11.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Fusulinina
 Archaediscacea - Archaediscidae
 Fusulinoidea - Staffellidae
 Fusulinoidea - Eostaffellidae
 Endothyroidea - Endothyridae
Rhynchonellata
 Spiriferida - Spiriferidae
Anthracospirifer ? curvilateralis Easton 1962
ssp. brutus
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
chaetetiform bryozoan, n. gen. A, n. sp.
Conodonta
 Ozarkodinida -
"Hindeodella sp." = Ozarkodina
"Hindeodella sp." = Ozarkodina Branson and Mehl 1933 conodont
 Ozarkodinida - Polygnathidae
 Prioniodontida -
Anthozoa
 Auloporida - Multithecoporidae
 Stauriida - Aulophyllidae
? Turbinatocaninia sp. Dobrolyubova 1970 horn coral