Quebrada de Ischichuca Chica: Carnian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Insecta - Hemiptera - Prosbolidae
Lariojaprosbole melchori n. gen., n. sp. Martins-Neto and Gallego 2001
Martins-Neto and Gallego 2001 2 specimens
PULR-I 257a, b
Insecta - Hemiptera - Dysmorphoptilidae
Gallegomorphoptila kotejai n. sp. Martins-Neto and Gallego 2006
Martins-Neto and Gallego 2006 1 specimen
recombined as Dysmorphoptiloides kotejai
PULR-I 314 (1 measurement)
Insecta - Coleoptera - Ademosynidae
Ademosyne arcucciae Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 1 specimen
PULR-I 306 (2 measurements)
Insecta - Coleoptera
Gemelina triangularis Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 1 specimen
PULR-I 323 (1 measurement)
see common names

Geography
Country:Argentina State/province:La Rioja
Coordinates: 29.1° South, 69.1° West (view map)
Paleocoordinates:45.8° South, 34.9° West
Basis of coordinate:estimated from map
Altitude:1123 meters
Geographic resolution:small collection
Time
Period:Triassic Epoch:Late/Upper Triassic
Stage:Carnian 10 m.y. bin:Triassic 3
Key time interval:Carnian
Age range of interval:237.00000 - 227.00000 m.y. ago
Stratigraphy
Geological group:Agua de la Peña Formation:Los Rastros
Stratigraphic resolution:group of beds
Stratigraphy comments: 4th Cycle. Carnian age based on radiometric constraints from underlying Chañares Formation in Marsicano et al. (2015).
Lithology and environment
Primary lithology:fine,volcaniclastic,green sandstone
Includes fossils?Y
Lithology description: "greenish, fine-grained sandstone"
Environment:lacustrine - large Tectonic setting:rift
Geology comments: "volcaniclastic shallow lacustrine deposits"
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.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:surface (in situ),survey of museum collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:122988
Authorizer:M. Clapham Enterer:J. Karr
Modifier:M. Clapham Research group:paleoentomology
Created:2012-01-08 19:44:38 Last modified:2017-05-23 16:34:15
Access level:the public Released:2012-01-08 19:44:38
Creative Commons license:CC BY
Reference information

Primary reference:
39201. 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]

Secondary references:

54712 R. G. Martins-Neto and O. F. Gallego. 2001. The Triassic insect fauna from Argentina. IV. Glosselytrodea and complements on Auchenorrhyncha. Acta Geologica Leopoldensia 24(52/53):105-114 [M. Clapham/M. Clapham]
39291 R. G. Martins-Neto, O. F. Gallego, and A. C. Mancuso. 2006. The Triassic insect fauna from Argentina. Coleoptera from the Los Rastros Formation (Bermejo Basin), La Rioja Province. Ameghiniana 43(3):1-20 [M. Clapham/J. Karr]
39350 R. G. Martins-Neto and O. F. Gallego. 2006. Review of Dysmorphoptilidae Handlirsch (Hemiptera: Cicadomorpha) from the Argentinean Triassic, with description of a new subfamily, and a new species. Polish Journal of Entomology 75:185-197 [M. Clapham/J. Karr/J. Karr]