Rio Gualo (5th cycle): Carnian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Insecta
Frenguelliphlebia labandeirai n. gen., n. sp. Martins-Neto and Gallego 2003
Martins-Neto et al. 2003 1 specimen
PULR-I 269
Insecta - Blattaria - Caloblattinidae
Samaroblatta sp. Tillyard 1919
Martins-Neto et al. 2005 6 specimens
PZCTES 7292d-f, PULR-I 296, 286a
Samaroblatta gualoensis n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 3 specimens
PULR-I 279, 280, 281
Samaroblatta corrientesina n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 3 specimens
PULR-I 282, 287, PZ-CTES 7296
Insecta - Glosselytrodea - Polycytellidae
Argentinoglosselytrina pulchella n. gen., n. sp. Martins-Neto and Gallego 2001
Martins-Neto and Gallego 2001 2 specimens
PULR-I 253; 263 in Martins-Neto et al., 2003 (1 measurement)
Insecta - Coleoptera - Ademosynidae
Ademosyne arcucciae Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 10 specimens
(25 measurements)
Ademosyne hexacostata n. sp. Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 12 specimens
PULR-I 308a-e, PULR-I 305 (9 measurements)
Ademosyne elongatus n. sp. Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 1 specimen
Insecta - Coleoptera - Schizocoleidae
Argentinosyne losrastrosensis n. sp. Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 1 specimen
PULR-I 344 (6 measurements)
Argentinosyne gonaldiae Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 2 specimens
PULR-I 322, CTES-PZ 7305a
Argentinosyne rugosa n. sp. Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 3 specimens
PULR-I 319 (2 measurements)
Mesostigmodera sp. Etheridge and Olliff 1890
Gallego 1997 1 specimen
PULR-I 227(CTES-PZ 7297) (6 measurements)
    = Argentinosyne frenguellii n. sp. Martins-Neto and Gallego 2006
Martins-Neto et al. 2006
Argentinosyne gualoensis n. sp. Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 13 specimens
PULR-I 320, PULR-I 311a-d (6 measurements)
Insecta - Coleoptera
Martins-Neto et al. 2006 4 specimens
PULR-I 325b-e (4 measurements)
Cardiosyne elegans n. sp. Martins-Neto and Gallego 2006
Martins-Neto et al. 2006 4 specimens
PULR-I 312, 327a-c (4 measurements)
Insecta - Hemiptera - Saaloscytinidae
Saaloscytina carmonae (Martins-Neto et al. 2006)
Lara et al. 2021 3 specimens
PULR-I 356-357, 358, 359
Insecta - Hemiptera - Progonocimicidae
Popovigocimex yurii n. gen., n. sp. Martins-Neto and Gallego 2003
Martins-Neto et al. 2003 1 specimen
PULR-I 271 (1 measurement)
Yurigocimex popovi n. gen., n. sp. Martins-Neto and Gallego 2003
Martins-Neto et al. 2003 1 specimen
PULR-I 262 (1 measurement)
Insecta - Hemiptera - Dysmorphoptilidae
Gallegomorphoptila breviptera n. gen., n. sp. Martins-Neto and Gallego 2003
Martins-Neto et al. 2003 1 specimen
recombined as Dysmorphoptiloides breviptera
PULR-I 265 (1 measurement)
Dysmorphoptiloides pulcherrima n. sp. Martins-Neto and Gallego 2003
Martins-Neto et al. 2003 1 specimen
PULR-I 261 (1 measurement)
Dysmorphoptiloides acostai Martins-Neto and Gallego 1999
Martins-Neto and Gallego 2001 1 specimen
PULR-I-254
Dysmorphoptiloides gigantea n. sp. Martins-Neto and Gallego 2001
Martins-Neto and Gallego 2001 1 specimen
PULR-I 255 (1 measurement)
Insecta - Hemiptera - Mesojabloniidae
Australocicada arcucciae n. sp. Martins-Neto and Gallego 2001
Martins-Neto and Gallego 2001 2 specimens
recombined as Fulgobole arcucciae
PULR-I 256; 266 in Martins-Neto et al., 2003
Insecta - Orthoptera - Haglidae
Hagla sp. Giebel 1856
Gallego 1997 1 specimen
PULR-I 223
    = ? Notopamphagopsis informal sp. 1 Cabrera 1928
Martins-Neto and Gallego 1999
? Notopamphagopsis informal sp. 2 Cabrera 1928
Martins-Neto et al. 2003 1 specimen
PULR-I 259
? Notopamphagopsis informal sp. 3 Cabrera 1928
Martins-Neto et al. 2003 1 specimen
PULR-I 270
Insecta - Triassoblattidae
Triassoblatta sp. Tillyard 1919
Martins-Neto et al. 2005 4 specimens
PZCTES 7292b, 7292g, 7292c, PULR-I 272
Insecta - Blattodea - Argentinoblattidae
Condorblatta lutzae n. gen., n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 2 specimens
PULR-I 285, 264(PZ-CTES 7295) (1 measurement)
Argentinoblatta sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 1 specimen
PZ-CTES 7292a
Triassoblatta sp. Tillyard 1919
Gallego 1997 1 specimen
PULR-I 220 (1 measurement)
    = Argentinoblatta herbsti n. gen., n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005
Insecta - Blattodea - Mancusoblattidae
Mancusoblatta pulchella n. gen., n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 1 specimen
PULR-I 288 (1 measurement)
Hermosablatta pectinata n. gen., n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 3 specimens
PULR-I 284, 291, 276 (1 measurement)
Hermosablatta crassatella n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 3 specimens
PULR-I 289, 277(PZ-CTES 7274), PZ-CTES 7277 (1 measurement)
Insecta - Blattodea - Blattulidae
Argentinoblattula revelata n. gen., n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 1 specimen
PULR-I 286
Argentinoblattula ? revelata Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 3 specimens
PULR-I 293, 294, 295
Insecta - Blattodea - Mesoblattinidae
Pulchellablatta nana n. gen., n. sp. Martins-Neto and Gallego 2005
Martins-Neto et al. 2005 1 specimen
PULR-I 274 (1 measurement)
Insecta - Plecoptera - Euxenoperlidae
Argentinoperlidium rogersi n. gen., n. sp. Martins-Neto and Gallego 2003
Martins-Neto et al. 2003 1 specimen
PULR-I 258
see common names

Geography
Country:Argentina State/province:La Rioja
Coordinates: 29.9° South, 67.8° West (view map)
Paleocoordinates:46.5° South, 33.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
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: Carnian age based on radiometric constraints from underlying Chañares Formation in Marsicano et al. (2015).
Lithology and environment
Primary lithology:black lithified carbonaceous claystone
Lithology description: "This facies assemblage is dominated by dark gray to black carbonaceous claystones (Fl) interbedded with iron mudstones and very fine-grained sandstones (SFm) (figures 3, 4). The tabular beds form a laterally persistent succession with thickness that ranges from 2 to 5 m. The claystones are horizontally laminated, and formed by continuous microlamination with different grain sizes."
Environment:lacustrine - large Tectonic setting:rift
Geology comments: "The features observed in the facies assemblage A suggest that it was deposited in a deep off-shore lacustrine depositional environment. The claystones were deposited by suspension in distal-lake conditions…" Mancuso et al., 2007
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
Preservation of anatomical detail:medium
Temporal resolution:snapshot
Collection methods and comments
Collection methods:selective quarrying,field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Collection method comments: Specimens kept in PULR-I – Invertebrate Paleontological Collection, Universidad Nacional de La Rioja, Argentina
Metadata
Database number:122987
Authorizer:M. Clapham Enterer:J. Karr, M. Clapham
Modifier:M. Clapham Research group:paleoentomology
Created:2012-01-08 19:22:23 Last modified:2015-12-07 16:54:59
Access level:the public Released:2012-01-08 19:22:23
Creative Commons license:CC BY
Reference information

Primary reference:
48430. R. G. Martins-Neto and O. F. Gallego. 1999. The Triassic insect fauna from Argentina. I. Auchenorrhyncha, Miomoptera and Ensifera. Revista Española de Paleontología 14:191-202 [M. Clapham/M. Clapham]

Secondary references:

52804 O. F. Gallego. 1997. Hallazgos de insectos Triásicos en la Argentina. Ameghiniana 34:511-516 [M. Clapham/M. Clapham]
76210 M. B. Lara, E. L. Bustos-Escalona, A. C. Mancuso and A. Arcucci. 2021. Upper Triassic hemipterans from the south-western Gondwana: taxonomical, paleobiological, and paleogeographical implications. Journal of South American Earth Sciences 107(103119) [M. Clapham/M. Clapham]
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]
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]
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]
39356 R. G. Martins-Neto, A. Mancuso, and O. F. Gallego. 2005. The Triassic Insect Fauna from Argentina. Blattoptera from the Los Rastros Formation (Bermejo Basin), La Rioja Province. Ameghiniana 42(4):1-21 [M. Clapham/J. Karr]