Jou Puerta
Basic information
Sample name: Jou Puerta

Reference: D. J. Alvarez-Lao. 2014. The Jou Puerta cave (Asturias, NW Spain): A MIS 3 large mammal assemblage with mixture of cold and temperate elements. Palaeogeography, Palaeoclimatology, Palaeoecology 393:1-19 [ER 3076]
Country: Spain

Coordinate: 43° 25' N, 4° 45' W
Basis of coordinate: based on political unit
Geography comments: "discovered in April 2011 during the excavation works for a highway in Llanes... in a cave placed under a sinkhole"
coordinate based on the municipality of Llanes
"The chronology of the fossil assemblage was determined by three AMS radiocarbon dates of 30, 275 ▒ 105 Cal ka BP (BetaŚ313518), 34, 235 ▒ 374 Cal ka BP (BetaŚ313520) and 36, 655 ▒ 205 Cal ka BP (BetaŚ313519), all falling within the MIS 3"
Climate and habitat
Substrate: ground surface
Lithology: limestone
Taphonomic context: pitfall trap
Habitat comments: "There was no clear stratigraphy in the fossiliferous deposits... the sinkhole acted as a natural trap... The possibility that carnivores or humans were responsible for the bone accumulation should be discarded since most of the fossils are well preserved"
Fig. 2 shows that the cave is formed in limestone and the excavated fossils were preserved in "debris" and "fluvial sediments"
Life forms: carnivores, ungulates
Sampling methods: quarry, surface
Sample size: 971
Years: 2011
Sampling comments: "Numerous large mammal bones were scattered over the cave floor... Fossil remains were recovered during an intensive exca- vation campaign in the summer of 2011, few weeks before the cave was definitively destroyed by the highway works"
Sample: 3349
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-08-25 19:01:18
Modified: 2019-08-25 20:53:26
Abundance distribution
10 species
1 singleton
total count 971
standardised richness: not computable
Fisher's α: 1.553
geometric series k: 0.5146
Hurlbert's PIE: 0.7640
Shannon's H: 1.6860
Good's u: 0.9990