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USGS 5441-PC

Carbon County, Wyoming
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Next site in WyomingUSGS 3140-PC · 1 mi

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Based on our latest records, with claims updated from the BLM on Oct 9, 2026. Land and claims can change quickly, so check before you go.

Minerals on record here

1 mineral

Recorded here: fossil.

Nearby sites

All of Wyoming
1 miUSGS 3140-PCFossil18 miSeminoe ReservoirJade21 miDF50-18Fossil

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About USGS 5441-PC

USGS 5441-PC is a fossil collection site in Carbon, Wyoming, cataloged in the Paleobiology Database. Fossils here come from the Amsden Formation, dated to the Morrowan (323.4–318.6 million years ago). The depositional environment is recorded as offshore and the tectonic setting is cratonic basin. Documented finds include Archaediscus, Asteroarchaediscus, Earlandia, Endothyra, Endothyranella, Lipinella.

Geologic setting

Formation
Amsden
Geologic interval
Morrowan
Age
323.4–318.6 Ma
Depositional environment
offshore
Tectonic setting
cratonic basin
Recorded occurrences
24
Locality notes

Geographic location uncertain, probably in sw1/4 sec.11 t21n r88w.

Fossils found here

Archaediscus
Fusulinata · Archaediscidae
Asteroarchaediscus
Fusulinata · Archaediscidae
Earlandia
Fusulinata · Earlandiidae
Endothyra
NO_CLASS_SPECIFIED · Endothyridae
Endothyranella
NO_CLASS_SPECIFIED · Endothyridae
Lipinella
Fusulinata · Biseriamminidae
Millerella
NO_CLASS_SPECIFIED · Eostaffellidae
Neoarchaediscus
Fusulinata · Archaediscidae
Planospirodiscus
Fusulinata · Archaediscidae
Pseudoglomospira
Fusulinata · Pseudoammodiscidae
Zellerina
NO_CLASS_SPECIFIED · Endothyridae
Calcisphaera
NO_CLASS_SPECIFIED · NO_FAMILY_SPECIFIED
Neokoninckophyllum
Anthozoa · Neokoninckophyllidae
Anthracospirifer occiduus
Rhynchonellata · Spiriferidae
Cleiothyridina
Rhynchonellata · Athyrididae
Derbyia
Strophomenata · Derbyiidae
Echinoconchus
Strophomenata · Echinoconchidae
Linoproductus
Strophomenata · Linoproductidae
Aviculopecten
Bivalvia · Aviculopectinidae
Wilkingia terminalis
Bivalvia · Sanguinolitidae
Euomphalus plummeri
Gastropoda · Euomphalidae
Asphaltina
NO_CLASS_SPECIFIED · NO_FAMILY_SPECIFIED

Records and references

Data: Paleobiology Database collection 5672 (CC BY 4.0) — view the source record

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Questions about USGS 5441-PC

Can you collect at USGS 5441-PC?

It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.

What minerals are found at USGS 5441-PC?

Fossil.

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Source: Paleobiology Database.