Basic information
Sample name: Húmera

Reference: J. A. Cárdaba, 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 Húmera (Pozuelo de Alarcón, Madrid). Spanish Journal of Palaeontology 28(1):29-42 [ER 2356]
Country: Spain

Coordinate: 40.43° N, -3.79° W
Basis of coordinate: based on nearby landmark
Geography comments: "at Húmera... to the East side of the City of Madrid" (coordinate based on Húmera)
"biozone E (MN5)... Recent magnetostratigraphic dating... locate the biozone E between 13.80 and 14.06 Ma"
Climate and habitat
Substrate: ground surface
Lithology: claystone
Habitat comments: "silty-clayey units separated by a calcrete level... a palaeoenvironment of... ephemeral ponds"
Life forms: rodents, other small mammals
Sampling methods: screenwash
Sample size: 180
Years: 2010, 2011
Sampling comments: "Some 900 kg of sediments from Húmera 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)
Sample: 2526
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-14 13:24:29
Modified: 2017-02-17 13:48:18
Abundance distribution
10 species
1 singleton
total count 180
standardised richness: not computable
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