Hùmera
Basic information
Sample name: Hùmera
Reference: J. A. Cârdaba, M. Presumido, O. Fesharaki, A. I. Casado, R. Perales, and M. Muñiz Perez. 2013. New data on the mammalian systematics and biostratigraphy of the middle Miocene from Hùmera (Pozuelo de Alarcón, Madrid). Spanish Journal of Palaeontology 28(1):29-42 [ER 2356]
Geography
Country: Spain
Coordinate: 40.43° N, -3.79° W
Coordinate basis: based on nearby landmark
Time interval: Middle Miocene
Zone: MN5
Max Ma: 14.06
Min Ma: 13.8
Age basis: paleomag
Geography comments: "at Hùmera... to the East side of the City of Madrid" (coordinate based on Hùmera)
"biozone E (MN5)... Recent magnetostratigraphic dating... locate the biozone E between 13.80 and 14.06 Ma"
"biozone E (MN5)... Recent magnetostratigraphic dating... locate the biozone E between 13.80 and 14.06 Ma"
Environment
Substrate: ground surface
Lithology: claystone
Habitat comments: "silty-clayey units separated by a calcrete level... a palaeoenvironment of... ephemeral ponds"
Methods
Life forms: rodents,other small mammals
Sampling methods: screenwash
Sample size: 180 specimens
Years: 2010, 2011
Sampling comments: "Some 900 kg of sediments from Hùmera were screened, of which 830 kg belong to the last two campaigns"
only the material from 2010 and 2011 is described; 2009 collections are described by Menéndez Gamella et al. (2010)
only the material from 2010 and 2011 is described; 2009 collections are described by Menéndez Gamella et al. (2010)
Metadata
Sample number: 2526
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-14 13:24:29
Modified: 2023-09-08 11:51:11
Abundance distribution
10 species
1 singleton
total count 180
extrapolated richness: 14.4
Fisher's α: 2.283
geometric series k: 0.6381
Hurlbert's PIE: 0.7611
Shannon's H: 1.6371
Good's u: 0.9946
Each square represents a species. Square sizes are proportional to counts.
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