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MP-147

Wyoming
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Next site in WyomingMP-146 · 1 mi

Can I collect here?

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See who owns this land and whether it is claimedPro shows the owner, the claim on this spot and every claim within a mile.
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Based on our latest records, with claims updated from the BLM on Oct 3, 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 miMP-146Fossil2 miMP-141Fossil3 miMP-164Fossil

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About MP-147

MP-147 is a fossil collection site in Wyoming, cataloged in the Paleobiology Database. Fossils here come from the Willwood Formation, dated to the Wasatchian (56–51.1 million years ago). The depositional environment is recorded as fluvial-lacustrine indet and the tectonic setting is intermontane basin. Documented finds include Allognathosuchus, Arfia opisthotoma, Cantius trigonodus, Coryphodon radians, Diacodexis metsiacus, Didymictis protenus.

Geologic setting

Formation
Willwood
Geologic interval
Wasatchian
Age
56–51.1 Ma
Depositional environment
fluvial-lacustrine indet.
Tectonic setting
intermontane basin
Recorded occurrences
18
Locality notes

Quad = Gilmore Hill SE, Township = 53N, Range = 98W, Section = 7

Fossils found here

Allognathosuchus
Reptilia · Alligatoridae
Arfia opisthotoma
Mammalia · Hyaenodontidae
Cantius trigonodus
Mammalia · Notharctidae
Coryphodon radians
Mammalia · Coryphodontidae
Diacodexis metsiacus
Mammalia · Diacodexeidae
Didymictis protenus
Mammalia · Viverravidae
Esthonyx bisulcatus
Mammalia · Esthonychidae
Haplomylus scottianus
Mammalia · Apheliscidae
Homogalax protapirinus
Mammalia · NO_FAMILY_SPECIFIED
Hyopsodus latidens
Mammalia · Hyopsodontidae
Bunophorus etsagicus
Mammalia · Diacodexeidae
Arenahippus pernix
Mammalia · Equidae
Oxyaena forcipata
Mammalia · Oxyaenidae
Oxyaena intermedia
Mammalia · Oxyaenidae
Pachyaena ossifraga
Mammalia · Mesonychidae
Phenacodus intermedius
Mammalia · Phenacodontidae
Phenacodus trilobatus
Mammalia · Phenacodontidae
Rodentia
Mammalia

Records and references

Data: Paleobiology Database collection 46733 (CC BY 4.0) — view the source record

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Questions about MP-147

Can you collect at MP-147?

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 MP-147?

Fossil.

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Source: Paleobiology Database.