Whistler Squat Quarry
Basic information
Sample name: Whistler Squat Quarry
Sample aka: TMM 41372
Reference: C. J. Campisano, E. C. Kirk, K. E. B. Townsend, and A. L. Deino. 2014. Geochronological and taxonomic revisions of the middle Eocene Whistler Squat Quarry (Devil's Graveyard Formation, Texas) and implications for the early Uintan in Trans-Pecos Texas. PLoS ONE 9(e101516):1-21 [ER 4127]
Geography
Country: United States
State: Texas
County: Brewster
Coordinate: 29.58° N, -103.70° W
Coordinate basis: estimated from map
Scale: quarry
Formation: Devil's Graveyard
Time interval: Middle Eocene
Zone: Uintan
Max Ma: 45.04
Min Ma: 44.88
Age basis: Ar-Ar
Geography comments: "at the western edge of Brewster County in the Agua Fria region between Big Bend National Park and Big Bend Ranch State Park" (coordinate estimated using Fig. 1)
in the lower member of the Devil's Graveyard Formation sandwiched between the Quarry Tuff, dated here at 44.88 ± 0.04 Ma, and a biotite dated at 45.04 ± 0.10 Ma using single-crystal total-fusion 40Ar/39Ar dating
zone Ui1b (early Uintan)
in the lower member of the Devil's Graveyard Formation sandwiched between the Quarry Tuff, dated here at 44.88 ± 0.04 Ma, and a biotite dated at 45.04 ± 0.10 Ma using single-crystal total-fusion 40Ar/39Ar dating
zone Ui1b (early Uintan)
Environment
Lithology: conglomerate
Taphonomic context: fluvial deposit
Habitat comments: "Wilson [7] described the main fossiliferous unit of the Whistler Squat Quarry as a weakly calcareously cemented bentonitic clay-pebble conglomerate with sanidine and biotite grains. This unit ranges up to 55 cm thick and is likely a fluvial channel remnant because it grades upward into cross-bedded sands and preserves variable degrees of water-worn bone"
Methods
Life forms: carnivores,primates,rodents,ungulates,other small mammals
Sampling methods: quarry
Sample size: 483 specimens
Years: 1970 - 1974
Museum: Texas Memorial Museum
Sampling comments: "collected by University of Texas field parties under the direction of J.A. Wilson from 1970-1974" and now at the University of Texas at Ausin
Metadata
Sample number: 4571
Contributor: John Alroy
Enterer: John Alroy
Created: 2024-12-07 05:48:51
Modified: 2024-12-07 05:48:51
Abundance distribution
19 species
7 singletons
total count 483
geometric series index: 39.9
Fisher's α: 3.946
geometric series k: 0.7280
Hurlbert's PIE: 0.5709
Shannon's H: 1.3341
Good's u: 0.9855
Each square represents a species. Square sizes are proportional to counts.
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Register
| Herpetotherium sp. | 2 | |
| †Scenopagus cf. edenensis | 2 | |
| Proterixoides sp. | 2 | |
| said to be new | ||
| †Ourayia uintensis | 1 | |
| †Thisbemys plicatus | 14 | |
| Ischyromyidae indet. | 4 | |
| said to be a new genus | ||
| †Microparamys minutus | 2 | |
| Microparamyinae indet. | 1 | |
| Mysops boskeyi = †Pareumys boskeyi | 51 | |
| †Prolapsus sibilatoris | 18 | |
| Pauromys texensis = †Metanoiamys texensis | 1 | |
| Hyopsodus sp. | 1 | |
| Homacodontinae indet. | 5 | |
| said to be new | ||
| †Leptoreodon marshi | 70 | |
| †Protitanotherium emarginatum | 3 | |
| Equidae indet. | 1 | |
| †Amynodon advenus | 303 | |
| Miacidae indet. | 1 | |
| Miocyon sp. | 1 | |