PBDB Collection

Rio Gualo (5th cycle) (Triassic of Argentina)

Where: La Rioja, Argentina (29.9° S, 67.8° W: paleocoordinates 46.5° S, 33.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Los Rastros Formation (Agua de la Peña Group), Carnian (237.0 - 228.0 Ma)

• 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; lithified, black, carbonaceous claystone

• "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.

• "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."

Size classes: macrofossils, mesofossils

• beetle specimens consist of 90% isolated elytra

Preservation: mold/impression

Collection methods: quarrying,

• Specimens kept in PULR-I – Invertebrate Paleontological Collection, Universidad Nacional de La Rioja, Argentina

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122987: authorized by Matthew Clapham, entered by Jered Karr on 08.01.2012, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Insecta
Blattaria - Caloblattinidae	Samaroblatta sp.⁵, Samaroblatta corrientesina n. sp.⁵, Samaroblatta gualoensis n. sp.⁵ Samaroblatta sp.⁵ Tillyard 1919 cockroach PZCTES 7292d-f, PULR-I 296, 286a Samaroblatta corrientesina n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 282, 287, PZ-CTES 7296 Samaroblatta gualoensis n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 279, 280, 281
Hemiptera - Progonocimicidae	Yurigocimex popovi n. gen. n. sp.⁴, Popovigocimex yurii n. gen. n. sp.⁴ Yurigocimex popovi n. gen. n. sp.⁴ Martins-Neto and Gallego 2003 true bug PULR-I 262 Popovigocimex yurii n. gen. n. sp.⁴ Martins-Neto and Gallego 2003 true bug PULR-I 271
Hemiptera - Dysmorphoptilidae	"Gallegomorphoptila breviptera n. gen. n. sp." = Dysmorphoptiloides breviptera⁴, Dysmorphoptiloides pulcherrima n. sp.⁴, Dysmorphoptiloides gigantea n. sp.², Dysmorphoptiloides acostai² "Gallegomorphoptila breviptera n. gen. n. sp." = Dysmorphoptiloides breviptera⁴ Martins-Neto and Gallego 2003 true bug PULR-I 265 Dysmorphoptiloides pulcherrima n. sp.⁴ Martins-Neto and Gallego 2003 true bug PULR-I 261 Dysmorphoptiloides gigantea n. sp.² Martins-Neto and Gallego 2001 true bug PULR-I 255 Dysmorphoptiloides acostai² Martins-Neto and Gallego 1999 true bug PULR-I-254
Hemiptera - Mesojabloniidae	"Australocicada arcucciae n. sp." = Fulgobole arcucciae² "Australocicada arcucciae n. sp." = Fulgobole arcucciae² Martins-Neto and Gallego 2001 true bug PULR-I 256; 266 in Martins-Neto et al., 2003
Hemiptera - Saaloscytinidae	Saaloscytina carmonae¹ Saaloscytina carmonae¹ Martins-Neto et al. 2006 true bug PULR-I 356-357, 358, 359
Glosselytrodea - Glosselytridae	Argentinoglosselytrina pulchella n. gen. n. sp.² Argentinoglosselytrina pulchella n. gen. n. sp.² Martins-Neto and Gallego 2001 winged insect PULR-I 253; 263 in Martins-Neto et al., 2003
Coleoptera -	Cardiosyne elegans n. sp.³, Cardiosyne obesa³ Cardiosyne elegans n. sp.³ Martins-Neto and Gallego 2006 beetle PULR-I 312, 327a-c Cardiosyne obesa³ Martins-Neto and Gallego 2006 beetle PULR-I 325b-e
Coleoptera - Schizocoleidae	Argentinosyne gualoensis n. sp.³, Argentinosyne losrastrosensis n. sp.³, Argentinosyne frenguellii n. sp.³, Argentinosyne rugosa n. sp.³, Argentinosyne gonaldiae³ Argentinosyne gualoensis n. sp.³ Martins-Neto and Gallego 2006 beetle PULR-I 320, PULR-I 311a-d Argentinosyne losrastrosensis n. sp.³ Martins-Neto and Gallego 2006 beetle PULR-I 344 Argentinosyne frenguellii n. sp.³ Martins-Neto and Gallego 2006 beetle PULR-I 227(CTES-PZ 7297) Argentinosyne rugosa n. sp.³ Martins-Neto and Gallego 2006 beetle PULR-I 319 Argentinosyne gonaldiae³ Martins-Neto and Gallego 2006 beetle PULR-I 322, CTES-PZ 7305a
Coleoptera - Ademosynidae	Ademosyne arcucciae³, Ademosyne hexacostata n. sp.³, Ademosyne elongatus n. sp.³ Ademosyne arcucciae³ Martins-Neto and Gallego 2006 beetle Ademosyne hexacostata n. sp.³ Martins-Neto and Gallego 2006 beetle PULR-I 308a-e, PULR-I 305 Ademosyne elongatus n. sp.³ Martins-Neto and Gallego 2006 beetle
Dicondylia - Triassoblattidae	Triassoblatta sp.⁵ Triassoblatta sp.⁵ Tillyard 1919 winged insect PZCTES 7292b, 7292g, 7292c, PULR-I 272
Blattodea - Mancusoblattidae	Hermosablatta pectinata n. gen. n. sp.⁵, Hermosablatta crassatella n. sp.⁵, Mancusoblatta pulchella n. gen. n. sp.⁵ Hermosablatta pectinata n. gen. n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 284, 291, 276 Hermosablatta crassatella n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 289, 277(PZ-CTES 7274), PZ-CTES 7277 Mancusoblatta pulchella n. gen. n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 288
Blattodea - Argentinoblattidae	Argentinoblatta sp.⁵, Argentinoblatta herbsti n. gen. n. sp.⁵, Condorblatta lutzae n. gen. n. sp.⁵ Argentinoblatta sp.⁵ Martins-Neto and Gallego 2005 cockroach PZ-CTES 7292a Argentinoblatta herbsti n. gen. n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 220 Condorblatta lutzae n. gen. n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 285, 264(PZ-CTES 7295)
Blattodea - Blattulidae	Argentinoblattula revelata n. gen. n. sp.⁵, Argentinoblattula ? revelata⁵ Argentinoblattula revelata n. gen. n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 286 Argentinoblattula ? revelata⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 293, 294, 295
Blattodea - Mesoblattinidae	Pulchellablatta nana n. gen. n. sp.⁵ Pulchellablatta nana n. gen. n. sp.⁵ Martins-Neto and Gallego 2005 cockroach PULR-I 274
Plecoptera - Euxenoperlidae	Argentinoperlidium rogersi n. gen. n. sp.⁴ Argentinoperlidium rogersi n. gen. n. sp.⁴ Martins-Neto and Gallego 2003 stonefly PULR-I 258
Orthoptera - Haglidae	? Notopamphagopsis "sp. 2"⁴, ? Notopamphagopsis "sp. 3"⁴, ? Notopamphagopsis "sp. 1" ? Notopamphagopsis "sp. 2"⁴ Cabrera 1928 hump-winged cricket PULR-I 259 ? Notopamphagopsis "sp. 3"⁴ Cabrera 1928 hump-winged cricket PULR-I 270 ? Notopamphagopsis "sp. 1" Cabrera 1928 hump-winged cricket PULR-I 223
Dicondylia -	Frenguelliphlebia labandeirai n. gen. n. sp.⁴ Frenguelliphlebia labandeirai n. gen. n. sp.⁴ Martins-Neto and Gallego 2003 winged insect PULR-I 269

¹Lara et al. 2021; ²Martins-Neto and Gallego 2001; ³Martins-Neto et al. 2006; ⁴Martins-Neto et al. 2003; ⁵Martins-Neto et al. 2005