USGS 6960A-PC (Carboniferous to of the United States)

Also known as Sando et al. Moffat Trail Loc.77

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 215-225 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.S. Williams, 1931."

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 5740: authorized by John Alroy, entered by Mike Sommers on 17.11.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Foraminifera
 Archaediscacea - Archaediscidae
Archaediscus sp., Asteroarchaediscus sp.
 Fusulinina - Earlandiidae
Earlandia sp.
 Endothyroidea - Endothyridae
Zellerina discoidea, Endothyra sp., Endothyra ex gr. bowmani
Endothyra ex gr. bowmani Phillips 1846
 Fusulinoidea - Staffellidae
Pseudoendothyra sp.
Demospongiae
 Hadromerida - Suberitidae
Chaetetes wyomingensis
Anthozoa
 Auloporida - Multithecoporidae
? Multithecopora amsdenensis
 Auloporida - Thecostegitidae
Duncanopora duncanae
Duncanopora duncanae tabulate coral
 Stauriida - Cyathopsidae
Caninia nevadensis
 Stauriida - Aulophyllidae
? Turbinatocaninia sp.
? Turbinatocaninia sp. Dobrolyubova 1970 horn coral
Strophomenata
 Productida - Linoproductidae
Linoproductidae indet.
Linoproductidae indet. Stehli 1954
linoproductid gen. et sp. indet.
Rhynchonellata
 Spiriferida - Spiriferidae
Anthracospirifer curvilateralis
Anthracospirifer curvilateralis Easton 1962
ssp. brutus
 Athyridida - Athyrididae
Composita sp.
Composita sp. Brown 1849
Gastropoda
 Bellerophontida -
Bellerophontoidea indet.
Bellerophontoidea indet. M'Coy 1851 snail