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Marathon Uplift, Woods Hollow Boulders Fm., Aphelaspis Zone

Texas
Directions
Next site in TexasUSNM708b, Hwy. 90 near Decie Ranch, Glass Mountains · 4 mi

Can I collect here?

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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.

4 miUSNM708b, Hwy. 90 near Decie Ranch, Glass MountainsFossil6 miAbout 2.5 miles NNE of oil derrick, Wedin's ranch, Glass MountainsFossil7 miLenox Hills, base of escarpment north of Wedin's ranchFossil

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About Marathon Uplift, Woods Hollow Boulders Fm., Aphelaspis Zone

Marathon Uplift, Woods Hollow Boulders Fm., Aphelaspis Zone is a fossil collection site in Texas, cataloged in the Paleobiology Database. Fossils here come from the Woods Hollow Boulders Formation, dated to the Steptoean (497–493.5 million years ago). The depositional environment is recorded as offshore shelf. Documented finds include Parabolinella, Olenus, Pterocephalia, Taenicephalus, Aphelaspis, Pseudagnostus.

Geologic setting

Formation
Woods Hollow Boulders
Geologic interval
Steptoean
Age
497–493.5 Ma
Depositional environment
offshore shelf
Recorded occurrences
8
Geology notes

"ls boulders in dark greenish clay shale, outer shelf (BA5)."

Fossils found here

Parabolinella
Trilobita · Olenidae
Olenus
Trilobita · Olenidae
Pterocephalia
Trilobita · Pterocephaliidae
Taenicephalus
Trilobita · Parabolinoididae
Aphelaspis
Trilobita · Aphelaspidae
Pseudagnostus
Artiopoda · Diplagnostidae
Homagnostus
Artiopoda · Agnostidae
Glyptagnostus
Artiopoda · NO_FAMILY_SPECIFIED

Records and references

Data: Paleobiology Database collection 237 (CC BY 4.0) — view the source record

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Questions about Marathon Uplift, Woods Hollow Boulders Fm., Aphelaspis Zone

Can you collect at Marathon Uplift, Woods Hollow Boulders Fm., Aphelaspis Zone?

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 Marathon Uplift, Woods Hollow Boulders Fm., Aphelaspis Zone?

Fossil.

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Meteorite nearbyA 70 kg stony meteorite fell at Peña Blanca Spring in 1946, 9 miles from here.

Source: Paleobiology Database.