USGS 22985-PC (Carboniferous to of the United States)

Also known as Sando et al. Moffat Trail Loc.74

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 (335.5 - 323.7 Ma)

• Limestone 202-206 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., J.r. Gordon, 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/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 5737: authorized by John Alroy, entered by Mike Sommers on 17.11.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
fistuliporid, gen. et sp. indet.
Anthozoa
 Stauriida - Cyathopsidae
Caninia cf. nevadensis
Calcisphaera
  -
Calcisphaera sp.
Calcisphaera sp. Williamson 1880
Calcisphaera laevis
  -
Calcisphaera laevis
Calcisphaera laevis Williamson 1880
Foraminifera
 Palaeotextularoidea - Palaeotextulariidae
Palaeotextularia sp.
 Palaeotextularoidea - Biseriamminidae
Biseriella moderata, Biseriella parva
Biseriella parva Chernysheva 1948
 Fusulinoidea - Staffellidae
Pseudoendothyra ex gr. kremenskensis, Pseudoendothyra sp.
 Fusulinoidea - Eostaffellidae
Eostaffella circuli, Eostaffella sp.
Eostaffella sp. Rauser-Chernousova 1948
 Fusulinina - Tuberitinidae
Eotuberitina sp.
 Fusulinina - Earlandiidae
Earlandia clavatula, Earlandia elegans
 Archaediscacea - Archaediscidae
Planospirodiscus sp., Asteroarchaediscus bachkiricus, Asteroarchaediscus sp., Archaediscus ex gr. krestovnikovi, Archaediscus sp., Neoarchaediscus incertus, Neoarchaediscus parvus
 Endothyroidea - Endothyridae
Endothyranella sp., Endothyra excellens, Endothyra ex gr. similis, Endothyra sp., Endothyra ex gr. bowmani, Zellerina discoidea
Endothyra ex gr. bowmani Phillips 1846