Izarra (Sanz collection) (Miocene of Spain)

Where: Spain (43.0° N, 2.9° W: paleocoordinates 42.9° N, 4.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Early/Lower Miocene (23.0 - 16.0 Ma)

• Level with lacustrine carbonate concretions

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; lithified, concretionary claystone

• Small basin formed between uplifts of the Murguia salt diapir.
• Calcareous concretions in a clay matrix.

Size classes: macrofossils, mesofossils

Preservation: mold/impression, concretion

Collection methods: Repository: private collection of J. Sanz, Vitoria (Alava)

Primary reference: A. Arillo and V. M. Ortuño. 1997. The fossil Acrididae from the Oligocene of Izarra (Alava, Spain). The antiquity of gregarious behavior (Orthoptera, Caelifera). Geobios 30:231-234 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 189954: authorized by Matthew Clapham, entered by Matthew Clapham on 22.11.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Orthoptera - Acrididae
Acrididae "indet. 1" Latreille 1802 short-horned grasshopper
JS-277