Izarra (MCNA 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: Specimens at Museum of Natural Sciences of Álava, Vitoria, Spain.

Primary reference: A. Arillo and V. M. Ortuño. 1997. First records of the families Anthicidae and Chrysomelidae from the Oligocene of Izarra (Alava, Spain). The Coleopterists Bulletin 51(3):293-297 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 123306: authorized by Matthew Clapham, entered by Matthew Clapham on 18.01.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera - Rhyparochromidae
"Rhyparochrominae indet." = Rhyparochromidae7
"Rhyparochrominae indet." = Rhyparochromidae7 Amyot and Audinet-Serville 1843 seed bug
MCNA 8550
 Hemiptera - Lygaeidae
Geocoris monserrati n. sp.6 Ortuño and Arillo 1997 milkweed bug
MCNA 5361
Ischnodemus sp.7 Fieber 1837 milkweed bug
MCNA 8549
 Hemiptera - Cydnidae
Cydnidae indet.7 Billberg 1820 burrowing bug
MCNA 8548
 Orthoptera - Acrididae
Acrididae "indet. 1"2 Latreille 1802 short-horned grasshopper
MCNA 3752, 5177, 5474, 5475
 Hymenoptera - Apidae
"Apis aquisextana" = Apis (Synapis) henshawi1
"Apis aquisextana" = Apis (Synapis) henshawi1 Cockerell 1907 Henshaw's honey bee
MCNA 5482
 Hymenoptera - Halictidae
"? Sphecodinae indet." = Sphecodina1
"? Sphecodinae indet." = Sphecodina1 Schenck 1868 sweat bee
MCNA 5483
 Coleoptera - Ptinidae
Ernobius alonsoi n. sp.5 Ortuño and Arillo 1997 spider beetle
MCNA 5652
 Coleoptera - Anthicidae
Anthicus neli n. sp. Arillo and Ortuño 1997 ant like flower beetle
MCNA 7435
 Coleoptera - Chrysomelidae
Phyllotreta sp.4 Chevrolat 1836 flea beetle
MCNA 7436
 Diptera - Limoniidae
Symplecta (Psiloconopa) penalveri n. sp.3 Krzemiński and Arillo 2008 crane fly
MCNA 13519