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Calsoyasuchus Hill (TMM 43631)

Coconino County, Arizona
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Next site in ArizonaGold Spring 1 (UCMP V85013) · 3 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 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 Arizona
3 miGold Spring 1 (UCMP V85013)Fossil6 miMNA 220, Ward TerraceFossil8 miMilzer locality, MNA 853Fossil

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About Calsoyasuchus Hill (TMM 43631)

Calsoyasuchus Hill (TMM 43631) is a fossil collection site in Coconino, Arizona, cataloged in the Paleobiology Database. Fossils here come from the Kayenta Formation, dated to the Sinemurian to Pliensbachian (199.5–184.2 million years ago). The depositional environment is recorded as channel. Documented finds include Calsoyasuchus valliceps, Pinophyta.

Geologic setting

Formation
Kayenta
Geologic interval
Sinemurian to Pliensbachian
Age
199.5–184.2 Ma
Depositional environment
"channel"
Recorded occurrences
2
Locality notes

Locality TMM 43631 ("Calsoyasuchus hill"), field number TR 97/09, located in the northern part of the Gold Spring drainage basin, Adeii Eechii Cliffs, Navajo Nation, Coconino County, Arizona.

Fossils found here

Calsoyasuchus valliceps
Reptilia · Goniopholididae
Pinophyta
Spermatophyta

Records and references

Data: Paleobiology Database collection 46395 (CC BY 4.0) — view the source record

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Questions about Calsoyasuchus Hill (TMM 43631)

Can you collect at Calsoyasuchus Hill (TMM 43631)?

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 Calsoyasuchus Hill (TMM 43631)?

Fossil.

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Source: Paleobiology Database.