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Tornillo - Black Peaks, Brewster County, Texas, USA
| Group | Tornillo |
|---|---|
| Formation | Black Peaks |
| Age: | 61.7 - 55.8 Ma Paleogene |
| Interval | Torrejonian |
| Lithology | mudstone/"limestone", mudstone |
| Number of Collections | 9 |
| Number of Occurrences | 49 |
Recorded Sample Locations
| Location | Region | Stratigraphic Name |
|---|---|---|
| Talley Mountain | Brewster County, Texas, USA | Tornillo - Black Peaks |
| Eastern Tornillo Flat | Brewster County, Texas, USA | Tornillo - Black Peaks |
| TMM 43621 | Brewster County, Texas, USA | Tornillo - Black Peaks |
| Moon Valley northeast of Study Butte | Brewster County, Texas, USA | Tornillo - Black Peaks |
| Rough Run Amphitheater | Brewster County, Texas, USA | Tornillo - Black Peaks |
| 1 mile southwest of Glenn Springs | Brewster County, Texas, USA | Tornillo - Black Peaks |
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Aguja | 72.1 - 66.0 Ma Late/Upper Cretaceous | sandstone, mudstone, claystone, mudstone/sandstone, claystone/"limestone", "shale", claystone/sandstone | 286 |
| Aguja - Upper Shale | 70.6 - 66.0 Ma Late/Upper Cretaceous | conglomerate, conglomerate/sandstone, mudstone, sandstone/mudstone, mudstone/sandstone, sandstone, claystone | 292 |
| Black Peaks | 61.7 - 56.8 Ma Paleocene | 15 | |
| Delaho - Lower | 24.8 - 20.4 Ma Cenozoic | 51 | |
| Devil's Graveyard | 40.4 - 37.2 Ma Eocene | 13 | |
| Devil's Graveyard - Bandera Mesa | 37.2 - 33.9 Ma Paleogene | 40 | |
| Devil's Graveyard - Lower | 46.2 - 40.4 Ma Eocene | 74 | |
| Javelina | 70.6 - 2.59 Ma Phanerozoic | mudstone, siltstone, siltstone/claystone, claystone, conglomerate, sandstone | 21 |
| Pen | 83.5 - 70.6 Ma Late/Upper Cretaceous | shale, "limestone" | 4 |
| Pruett - upper | 40.4 - 37.2 Ma Eocene | 2 | |
| Big Bend - Chisos - lower | 46.2 - 40.4 Ma Eocene | 2 | |
| Big Bend - Hannold Hill | 55.8 - 50.3 Ma Eocene | 15 | |
| Tornillo - Javelina | 66.0 - 63.3 Ma Paleocene | sandstone, sandstone/mudstone, siltstone/sandstone, claystone, mudstone, claystone/sandstone | 47 |
Recorded Fossils
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
