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University of Texas T9, Round Point Ridge, Glass Mountains

Brewster County, Texas
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Next site in TexasClay Slide, Glass Mountains (John Britts Owen collection) · 0.8 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.

0.8 miClay Slide, Glass Mountains (John Britts Owen collection)Fossil0.9 miR.E. King 101, Glass MountainsFossil3 miR.E. King 33, Glass MountainsFossil

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About University of Texas T9, Round Point Ridge, Glass Mountains

University of Texas T9, Round Point Ridge, Glass Mountains is a fossil collection site in Brewster, Texas, cataloged in the Paleobiology Database. Fossils here come from the Cathedral Mountain Formation, dated to the Kungurian (283.3–274.4 million years ago). The depositional environment is recorded as carbonate indet. Documented finds include Enteletes dumblei, Enteletes plummeri, Tropidelasma pygmaeum, Tropidelasma undulatum, Meekella attenuata, Dyoros (Dyoros) subliratus.

Geologic setting

Formation
Cathedral Mountain
Geologic interval
Kungurian
Age
283.3–274.4 Ma
Depositional environment
carbonate indet.
Recorded occurrences
20
Locality notes

Various descriptions listed by King: "Top of ridge 2.5 miles northeast of Wedin's oil derrick," "about 3 miles north 20 east of Wedin's oil derrick," "north side of Round Point ridge, 3 miles north of Wedin's oil derrick," "base of hill 2miles north 20 east of Wedin's oil derrick," and "about halfway between first day's section and Wedin's land"

Fossils found here

Enteletes dumblei
Rhynchonellata · Enteletidae
Enteletes plummeri
Rhynchonellata · Enteletidae
Tropidelasma pygmaeum
Strophomenata · Schuchertellidae
Tropidelasma undulatum
Strophomenata · Schuchertellidae
Meekella attenuata
Strophomenata · Meekellidae
Dyoros (Dyoros) subliratus
Strophomenata · Rugosochonetidae
Peniculauris ivesi
Strophomenata · Productidae
Marginifera
Strophomenata · NO_FAMILY_SPECIFIED
Spyridiophora reticulata
Strophomenata · Productellidae
Anemonaria sublaevis
Strophomenata · Paucispiniferidae
Hystriculina wabashensis
Strophomenata · Paucispiniferidae
Chonosteges magnicostatus
Strophomenata · Aulostegidae
Edriosteges medlicottianus
Strophomenata · Aulostegidae
Leptodus
Strophomenata · Lyttoniidae
Stenoscisma venustum
Rhynchonellata · Stenoscismatidae
Gypospirifer infraplicus
Rhynchonellata · Trigonotretidae
Timaniella pseudocamerata
Rhynchonellata · Spiriferellidae
Phricodothyris guadalupensis
Rhynchonellata · Elythidae
Composita subtilita
Rhynchonellata · Athyrididae

Records and references

Data: Paleobiology Database collection 149931 (CC BY 4.0) — view the source record

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Questions about University of Texas T9, Round Point Ridge, Glass Mountains

Can you collect at University of Texas T9, Round Point Ridge, Glass Mountains?

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 University of Texas T9, Round Point Ridge, Glass Mountains?

Fossil.

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Meteorite nearbyA 70 kg stony meteorite fell at Peña Blanca Spring in 1946, 17 miles from here.

Source: Paleobiology Database.