Barranco de la Tranquila
Basic information
Sample name: Barranco de la Tranquila

Sample aka: BTr

Reference: X. Murelaga, X. P. Suberbiola, F. de Lapparent de Broin, J.-C. Rage, S. Duffaud, H. Astibia, and A. Badiola. 2002. Amphibians and reptiles from the Early Miocene of the Bardenas Reales of Navarre (Ebro Basin, Iberian Peninsula). Geobios 35:347-365 [ER 4300]
Geography
Country: Spain

State: Navarre

Coordinate: 42.1059° N, -1.5473° W
Latlng basis: estimated from map

Formation: Tudela

Time interval: Early Miocene

Zone: 2b-3

Geography comments: "The region of the Bardenas Reales is located in the southwestern part of Navarre. It is situated in the northwestern area of the Ebro Basin"

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Environment
Lithology: siliciclastic (mixed)

Taphonomic context: fluvial deposit

Habitat comments: "composed of alluvial, lacustrine and palustrine deposits"
"clays, sandstones, marls and limestones, with some intercalations of gypsum"
"These evidences suggest that the bulk of water was shallow and sporadic. In other words, the sedimentary environment was probably a wetland"

Methods
Life forms: frogs, salamanders, turtles, snakes, other reptiles

Sample size: 12 specimens

Museum: Government of Navarre

Net or trap nights: 0

Basal area status: not applicable

Sampling comments: "The fossils belong to the palaeontological collections of the Government of Navarre; they are provisionally housed in the Laboratory of Palaeontology of the Universidad del País Vasco/EHU (Bilbao)"

Metadata
Sample no: 4660

Contributor no: John Alroy

Enterer: Nicholas Vine

Modifier no: Nicholas Vine

Created: 2025-02-14 00:47:20

Modified: 2025-02-14 01:37:40

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
6 species
3 singletons
total count 12
geometric series index: 20.0
Fisher's α: 4.775
geometric series k: 0.7248
Hurlbert's PIE: 0.7273
Shannon's H: 1.5833
Good's u: 0.777
Register
Salamandridae indet.1
Anura A indet.5
Anura indet.2
†Chelydropsis cf. apellanizi 1
Ptychogaster sp. 1
Eryx sp. 2
?Eryx