Kathy's Pit
Basic information
Sample name: Kathy's Pit
Sample aka: SAM Cave
Reference: K. L. Rogers, C. A. Repenning, F. G. Luiszer, and R. D. Benson. 2000. Geologic history, stratigraphy, and paleontology of SAM Cave, north-central New Mexico. New Mexico Geology 22(4):89-117 [ER 3212]
Geography
Country: United States
State: New Mexico
County: Rio Arriba
Coordinate: 36.89° N, -106.08° W
Coordinate basis: estimated from map
Time interval: Pleistocene - Holocene
Geography comments: "approximately 10 km (6.2 mi) northwest of San Antonio Mountain" show near the center of sec 27, T31N, R8E
"the Kathy’s Pit sediments are considered to be late Pleistocene or Holocene in age based on their stratigraphic position and on their faunal composition"
"the Kathy’s Pit sediments are considered to be late Pleistocene or Holocene in age based on their stratigraphic position and on their faunal composition"
Environment
Lithology: not described
Taphonomic context: cave,pitfall trap
Habitat comments: "a 1-m-thick (3-ft) fill that extends approximately 15 m (50 ft)... the area may have acted periodically as a deadfall trap for surface animals"
Methods
Life forms: bats,carnivores,rodents,other small mammals,birds,lizards,snakes,frogs,salamanders,fishes
Sampling methods: quarry
Sample size: 159 specimens
Sampling comments: "In the 1950s, Mr. Cisneros removed tons of rock and fossil-bearing matrix" but it is not clear how the matrix was prepared
Metadata
Sample number: 3526
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-09-11 20:30:57
Modified: 2019-09-11 10:30:57
Abundance distribution
25 species
11 singletons
total count 159
geometric series index: 55.0
Fisher's α: 8.334
geometric series k: 0.8634
Hurlbert's PIE: 0.8946
Shannon's H: 2.5895
Good's u: 0.9310
Each square represents a species. Square sizes are proportional to counts.
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Register
| Osteichthyes indet. | 1 | |
| Ambystoma tigrinum | 20 | |
| Pseudacris triseriata | 7 | |
| Phrynosoma douglasii | 1 | |
| "Phrynosoma douglassii" | ||
| Thamnophis elegans | 2 | |
| Troglodytes cf. hiemalis | 3 | 1.6 g insectivore |
| "Troglodytes cf. troglodytes" | ||
| Corvini indet. | 1 | |
| Parus sp. | 16 | |
| Canis cf. latrans | 1 | 12 kg carnivore-insectivore |
| Lontra canadensis | 1 | 7.1 kg piscivore |
| "Lutra canadensis" | ||
| Mephitis mephitis | 1 | 1.5 kg carnivore-insectivore |
| Chiroptera indet. | 1 | |
| Sorex sp. | 1 | |
| Lepus californicus | 11 | 2.1 kg |
| Sylvilagus sp. | 6 | |
| Microtus cf. californicus | 20 | |
| Phenacomys intermedius | 1 | 23.5 g |
| Neotoma sp. | 8 | |
| Peromyscus sp. | 1 | |
| Reithrodontomys megalotis | 9 | 10.3 g |
| Erethizon sp. | 3 | |
| Thomomys sp. | 34 | |
| Cynomys ludovicianus | 2 | |
| Neotamias minimus | 7 | |
| "Eutamias minimus" | ||
| Ictidomys cf. tridecemlineatus | 1 | 160 g |
| "Spermophilus cf. tridecemlineatus" | ||