Where: La Rioja, Argentina (29.1° S, 69.1° W: paleocoordinates 45.8° S, 34.9° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Los Rastros Formation (Agua de la Peña Group), Carnian (237.0 - 228.0 Ma)
• 4th Cycle. Carnian age based on radiometric constraints from underlying Chañares Formation in Marsicano et al. (2015).
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine - large; fine-grained, volcaniclastic, green sandstone
•Ichigualasto–Villa Unión Basin, developed along the western Gondwana margin associated with extension focused along the northwest-trending Paleozoic sutures. This extension originated from the breakup of Pangaea during the end of Permian and start of the Triassic. Synrift phase II - accommodation space generated by tectonic subsidence.
Size classes: macrofossils, mesofossils
• beetle specimens consist of 90% isolated elytra
Preservation: mold/impression
Collection methods: surface (in situ),
Primary reference: R. G. Martins-Neto, O. F. Gallego, and R. N. Melchor. 2003. The Triassic insect fauna from South America (Argentina, Brazil and Chile): a checklist (except Blattoptera and Coleoptera) and descriptions of new taxa. Acta Zoologica Cracoviensia 46(Suppl):229-256 [M. Clapham/J. Karr/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 122988: authorized by Matthew Clapham, entered by Jered Karr on 08.01.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
| Insecta | |
Lariojaprosbole melchori n. gen. n. sp.1
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"Gallegomorphoptila kotejai n. sp." = Dysmorphoptiloides kotejai2
"Gallegomorphoptila kotejai n. sp." = Dysmorphoptiloides kotejai2 Martins-Neto and Gallego 2006 true bug PULR-I 314
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