Bridge Ranch
Basic information
Sample name: Bridge Ranch
Reference: S. R. May. 2019. The Lapara Creek Fauna: Early Clarendonian of south Texas, USA. Palaeontologia Electronica 22.1.15A:1-129 [ER 4065]
Geography
Country: United States
State: Texas
County: Bee
Coordinate: 28.52° N, -97.75° W
Coordinate basis: estimated from map
Formation: Goliad
Time interval: Middle Miocene
Zone: Cl1
Geography comments: "both the Ten Mile Waterhole Creek and Bridge Ranch localities were located in the basal Lapara sandstone member of the Goliad Formation"
"the consistent nature of the very gentle south-southeast dip suggests a stratigraphic order from bottom to top of Ten Mile Waterhole Creek, Bridge Ranch, Farish Ranch and Buckner Ranch"
"the consistent nature of the very gentle south-southeast dip suggests a stratigraphic order from bottom to top of Ten Mile Waterhole Creek, Bridge Ranch, Farish Ranch and Buckner Ranch"
Environment
Lithology: siliciclastic (mixed)
Taphonomic context: fluvial deposit
Habitat comments: "Local lithology is variable, although gray to white mudstone, muddy sandstone and carbonate nodule conglomerates are common"
"Along Medio Creek, just west of the Bridge Ranch localities, the Goliad Formation includes light gray, quartzose sandstone and carbonatenodule conglomerate (Figure 11). The conglomerate also includes clasts of reddish mudstone, as well as bone fragments. The red mudstone clasts are pebble-cobble size, rounded and probably represent material reworked from the underlying Fleming Formation. These lithologies are very similar to those described by the Survey at the Bridge Ranch
localities"
"no significant differences were observed between the horses at Farish Ranch, Ten Mile Waterhole Creek and Buckner Ranch Site 1"
"Along Medio Creek, just west of the Bridge Ranch localities, the Goliad Formation includes light gray, quartzose sandstone and carbonatenodule conglomerate (Figure 11). The conglomerate also includes clasts of reddish mudstone, as well as bone fragments. The red mudstone clasts are pebble-cobble size, rounded and probably represent material reworked from the underlying Fleming Formation. These lithologies are very similar to those described by the Survey at the Bridge Ranch
localities"
"no significant differences were observed between the horses at Farish Ranch, Ten Mile Waterhole Creek and Buckner Ranch Site 1"
Methods
Life forms: fishes,turtles,rodents,carnivores,ungulates,birds,other small mammals,other reptiles
Sampling methods: screenwash
Sample size: 200 specimens
Sampled by: Glen Evans, Adolph Witte, Nolan McWhirter, William McAnulty, Joseph Gregory
Years: 1939 - 1941
Museum: The University of Texas at Austin, American Museum of Natural History, New York and the University of California Museum of Paleontology
Sampling comments: "Another sample was wet-screened because of its close association with bone-bearing conglomerate"
"The Bridge Ranch localities were excavated over a two-month period"
"The Bridge Ranch localities were excavated over a two-month period"
Metadata
Sample number: 4485
Contributor: John Alroy
Enterer: Nicholas Vine
Modifier no: John Alroy
Created: 2024-11-16 05:47:50
Modified: 2024-11-21 10:06:22
Abundance distribution
32 species
8 singletons
total count 200
geometric series index: 59.8
Fisher's α: 10.755
geometric series k: 0.8814
Hurlbert's PIE: 0.8908
Shannon's H: 2.7474
Good's u: 0.9604
Each square represents a species. Square sizes are proportional to counts.
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