Birosse
Basic information
Sample name: Birosse

Reference: C. Bulot. 1974. Recherche de rongeurs fossiles dans les terrains miocènes de la région lectouroise. Bulletin de la Société d'Histoire naturelle de Toulouse 110(3-4):245-249 [ER 2422]
Geography
Country: France



Coordinate: 43° 51' N, 0° 40' E
Coordinate basis: based on nearby landmark

Time interval: Middle Miocene

Zone: MN5/6

Age basis: zone

Geography comments: "feuille de Fleurance" (coordinate based on Fleurance)
"la plupart des rongeurs... se retrouvent á Sansan, mais offrent un cachet plus archaïque" (i.e., older than or within MN6)

Environment
Substrate: ground surface

Lithology: sandstone

Habitat comments: "sables de couleur rouille reposent sur des marnes contentant des concrétions calcaires"

Methods
Life forms: rodents

Sampling methods: screenwash

Sample size: 20 specimens

Sampling comments: collected by "Une série de lavages"

Metadata
Sample number: 2640

Contributor: John Alroy

Enterer: John Alroy

Created: 2017-02-23 17:44:02

Modified: 2017-02-23 06:44:02

Abundance distribution
6 species
0 singletons
total count 20
geometric series index: 9.5
Fisher's α: 2.906
geometric series k: 0.7784
Hurlbert's PIE: 0.7737
Shannon's H: 1.6647
Good's u: 1.0000
Each square represents a species. Square sizes are proportional to counts.
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