Jirau Paleontological Site
Basic information
Sample name: Jirau Paleontological Site
Reference: H. I. de Araùjo-Jùnior, K. O. Porpino, C. L. Ximenes, and L. P. Bergqvist. 2013. Unveiling the taphonomy of elusive natural tank deposits: A study case in the Pleistocene of northeastern Brazil. Palaeogeography, Palaeoclimatology, Palaeoecology 378:52-74 [ER 3074]
Geography
Country: Brazil
State: Cearâ
Coordinate: 3° 21' 23" S, 39° 42' 20" W
Coordinate basis: stated in text
Time interval: Late Pleistocene
Geography comments: "35 km northwest of Itapipoca City"
age assignment is based on faunal correlation
age assignment is based on faunal correlation
Environment
Substrate: ground surface
Lithology: conglomerate
Taphonomic context: lake deposit
Habitat comments: "an intermediary layer (about 1 m thick), characterized by debris flow sedimentation, consisting of conglomerate supported by feldspatic clayey-sandy matrix, with fossils, rounded quartz pebbles and rock fragments from tank walls"
Methods
Life forms: carnivores,ungulates,other large mammals
Sampling methods: quarry
Sample size: 1322 specimens
Years: 2003 - 2008
Sampling comments: "horns, teeth, and xenarthran osteoderms" were excluded from the counts, so five xenarthrans present in the fauna are not included in the inventory
Metadata
Sample number: 3347
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-08-25 17:21:09
Modified: 2019-08-25 10:51:07
Abundance distribution
14 species
3 singletons
total count 1322
geometric series index: 20.6
Fisher's α: 2.185
geometric series k: 0.5818
Hurlbert's PIE: 0.2477
Shannon's H: 0.6477
Good's u: 0.9977
Each square represents a species. Square sizes are proportional to counts.
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Register
| Eremotherium laurillardi | 1143 | |
| Catonyx cuvieri | 1 | |
| Glossotherium sp. | 14 | |
| Holmesina paulacoutoi | 1 | |
| Pampatherium humboldtii | 7 | |
| Notiomastodon platensis | 5 | |
| Toxodon platensis | 9 | |
| Xenorhinotherium bahiense | 10 | |
| Smilodon populator | 10 | |
| Palaeolama major | 47 | |
| Mazama sp. | 5 | |
| Tayassu pecari | 67 | 29 kg browser |
| Equus neogeus | 1 | |
| "Equus (Amerhippus) neogaeus" | ||
| Hippidion principale | 2 | |