Abismo Iguatemi
Basic information
Sample name: Abismo Iguatemi
Reference: M. C. Castro and M. C. Langer. 2011. The mammalian fauna of Abismo Iguatemi, southeastern Brazil. Journal of Cave and Karst Studies 73(2):83-92 [ER 3126]
Geography
Country: Brazil
State: Säo Paulo
Coordinate: 24° 31' S, 48° 51' W
Coordinate basis: based on nearby landmark
Time interval: Late Pleistocene
Max Ma: 0.01458
Min Ma: 0.0108
Age basis: radiocarbon
Geography comments: "about 5 km southwest of the town of Apiaí, upper Ribeira River valley" (coordinate based on Apiaí)
"it is possible that its extant taxa are Holocene in age" but there is no direct support for this hypothesis, and "Specimens of Catonyx cuvieri and Smilodon populator... provided 14C AMS ages of 10,800 (BETA 230974) and 14,580 (BETA 183566) years BP respectively"
"it is possible that its extant taxa are Holocene in age" but there is no direct support for this hypothesis, and "Specimens of Catonyx cuvieri and Smilodon populator... provided 14C AMS ages of 10,800 (BETA 230974) and 14,580 (BETA 183566) years BP respectively"
Environment
Lithology: claystone
Taphonomic context: cave
Habitat comments: "The deposits in the cave are mainly composed of black to reddish clay associated with larger clasts of limestone, filite, and calcite crust... likely sources of bioclasts are (1) the fall of animals into the natural trap, (2) floating carcasses or (3) isolated specimens of animals that died upslope and were washed into the cave, and (4) the animals that lived and died inside the cave. Based on the discussion above, we believe that most of the recovered material entered the cave from the third source"
Methods
Life forms: bats,carnivores,primates,rodents,ungulates,other large mammals,other small mammals
Sampling methods: quarry,screenwash
Sample size: 320 specimens
Years: 2001
Sampling comments: "collected during September 2001... Along with the blocks of sediment containing the micro-remains, macrofossils were recovered from the bottom of the cave, but no stratigraphic or taphonomic information was recorded... The blocks of sediment were disintegrated in water and screen-washed using a 1 mm mesh"
Metadata
Sample number: 3414
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-08-31 13:37:06
Modified: 2019-08-31 03:37:06
Abundance distribution
32 species
17 singletons
total count 320
geometric series index: 90.8
Fisher's α: 8.852
geometric series k: 0.8500
Hurlbert's PIE: 0.7241
Shannon's H: 1.9569
Good's u: 0.9470
Each square represents a species. Square sizes are proportional to counts.
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Register
| Cryptonanus sp. | 1 | |
| Didelphis aurita | 1 | 1.1 kg invertivore-frugivore |
| Gracilinanus sp. | 2 | |
| Metachirus nudicaudatus | 2 | 372 g insectivore-frugivore |
| Monodelphis sp. | 1 | |
| Philander sp. | 6 | |
| Dasypodidae indet. | 1 | |
| Glyptodon clavipes | 1 | |
| an indeterminate specimen of Glyptodontidae is also present | ||
| Catonyx cuvieri | 17 | |
| Cerdocyon thous | 1 | 5.2 kg carnivore-frugivore |
| Leopardus wiedii | 1 | 2.6 kg carnivore |
| Smilodon populator | 21 | |
| Molossus sp. | 2 | |
| Carollia sp. | 2 | |
| Mimon bennettii | 6 | 31.1 g insectivore |
| Myotis sp. | 1 | |
| Sapajus cf. nigritus | 154 | 2.7 kg |
| "Cebus cf. nigritus" | ||
| Alouatta cf. guariba | 1 | |
| "Alouatta cf. fusca" | ||
| Mazama gouazoubira | 1 | 14 kg frugivore-browser |
| Dicotyles tajacu | 1 | 21 kg |
| "Pecari tajacu" | ||
| Kannabateomys sp. | 1 | |
| Phyllomys sp. | 57 | |
| Trinomys sp. | 16 | |
| Cavia sp. | 9 | |
| Akodon sp. | 4 | |
| Blarinomys breviceps | 1 | 22.0 g |
| Calomys sp. | 1 | |
| Oligoryzomys sp. | 3 | |
| Oryzomys cf. angouya | 2 | |
| 13 indeterminate specimens of this genus are also present | ||
| Oryzomys cf. capito | 1 | 58.0 g |
| Wilfredomys oenax | 1 | |
| another indeterminate specimen of this genus is present | ||
| Sciurus aestuans | 1 | 170 g |