PBDB Collection

Minas de Petroleo (Wieland coll) (Triassic of Argentina)

Where: Mendoza, Argentina (33.1° S, 69.1° W)

• Paleocoordinates: 39.3° S, 27.6° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Upper Member (Potrerillos Formation), Carnian (237.0 - 228.0 Ma)

• Fossil insects in the second unit, 10m from the bottom, the unit is 50m thick

Environment/lithology: lacustrine delta plain; lithified, sandy, carbonaceous shale and sandy, conglomeratic claystone

• The Cuyo Basin may be characterised as a passive rift basin produced as a result of generalised extension induced by crustal thinning and collapse of the Upper Palaeozoic (Gondwana) orogen (Llambías and Sato, 1990, 1995; Spalletti, 1999). It can be defined as a half graben that shows strong asymmetric structural and depositional features, as well as intrabasinal highs or transference zones that delimit different depocentres (Kokogián et al., 1988, 1993; Ramos and Kay, 1991; López Gamundí, 1994; Spalletti, 1999, 2001).

• Arenaceous to carbonaceous shales, or fine clays, often markedly to finely laminated, with frequent plants in much greater variety than in either of the higher horizons.

Size class: macrofossils

Preservation: mold/impression

Collected by G.R. Wieland in 1917; reposited in the YPM

Primary reference: G. R. Wieland. 1925. Rhaetic crane flies from South America. American Journal of Science, Series 5 9:21-28 [D. Smith/E. Leckey/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 84244: authorized by Dena Smith, entered by Erin Leckey on 30.09.2008, edited by Bethany Allen

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Podozamites lanceolatus genuinus Podozamites lanceolatus genuinus YPM PC 1066-7, 1087, 1133

Coniferales -	Fraxinopsis minor, Fraxinopsis major Fraxinopsis minor Wieland 1929 YPM PC 1032, 1034-41, 1123-7 Fraxinopsis major Wieland 1929 YPM PC 1033, 1042-3, 1061, 1069
Cordaitopsida
- Cordaitaceae	Noeggerathiopsis sp. Noeggerathiopsis sp. Feistmantel 1879 YPM PC 1098
Polypodiopsida
Equisetales - Equisetidae	Equisetites fertilis, Neocalamites carreri Equisetites fertilis YPM PC 1104, 1107-9 Neocalamites carreri YPM PC 1095-7, 1106
-	Cladophlebis australis, Cladophlebis sp., Cladophlebis kurtzi, Cladophlebis mesozoica, Cladophlebis johnstoni, Cladophlebis wielandi n. sp. Cladophlebis australis YPM PC 1053, 1055, 1056, (?)1117 Cladophlebis sp. Brongniart 1849 YPM PC 1112, 1113 Cladophlebis kurtzi Frenguelli 1947 YPM PC 1059, 1060, 1116 Cladophlebis mesozoica Kurtz 1947 YPM PC 1059, 1060, 1118 Cladophlebis johnstoni Walkom 1925 YPM PC 1057, 1111 Cladophlebis wielandi n. sp. Jain and Delevoryas 1967 YPM PC 1054 (holotype)
Hepaticae
-	Thallites sp. Thallites sp. Walton 1925 liverwort YPM PC 1104a, b
Cycadopsida
Pteridospermales -	Thinnfeldia dutoiti n. sp. Thinnfeldia dutoiti n. sp. Jain and Delevoryas 1967 cycads YPM PC 1046 (holotype)
Ginkgoopsida
Ginkgoales -	Sphenobaiera tenuifolia, Sphenobaiera argentinae Sphenobaiera tenuifolia Johnston 1887 YPM PC 1080-2, 1074, 1103 Sphenobaiera argentinae Kurtz 1894 YPM PC 1065
Ginkgoales - Ginkgoaceae	Baierophyllites florinii n. gen. n. sp., Baiera cuyana, Baiera rollerii, Stachyopitys anthoides Baierophyllites florinii n. gen. n. sp. Jain and Delevoryas 1967 YPM PC 1083-4, 1086, 1120 (holotype) Baiera cuyana Frenguelli 1942 YPM PC 1121 Baiera rollerii Frenguelli 1946 YPM PC 1122 Stachyopitys anthoides Frenguelli 1944 YPM PC 1100
Caytoniales - Caytoniaceae	Sagenopteris longicaulis Sagenopteris longicaulis Du Toit 1927 YPM PC 1137a-d
Czekanowskiales -	Phoenicopsis elongatus Phoenicopsis elongatus Morris 1845 YPM PC 1068 1131-2
Cycadeoideopsida
Cycadeoideales -	Yabeiella sp., Yabeiella crassa, Yabeiella wielandi, Yabeiella brackebushiana, Yabeiella spatulata, Yabeiella mareyesiaca Yabeiella sp. Oishi 1931 YPM PC 1017, 1024, 1025 Yabeiella crassa Jones and de Jersey 1947 YPM PC 1011, 1013a, b, 1016 Yabeiella wielandi Oishi 1931 YPM PC (?)1008, 1026-8, 1030 Yabeiella brackebushiana Kurtz 1921 YPM PC 1007, 1009, 1029 Yabeiella spatulata Oishi 1931 YPM PC 1018-23, 1031, 1062 Yabeiella mareyesiaca Geinitz 1876 YPM PC 1010, 1012, 1014-5
Peltaspermopsida
Peltaspermales - Peltaspermaceae	"Thinnfeldia praecordillarae" = Pachydermophyllum praecordillerae "Thinnfeldia praecordillarae" = Pachydermophyllum praecordillerae Frenguelli 1944 YPM PC 1044, 1052
Gymnospermopsida
Corystospermales - Corystospermaceae	Pteruchus rhaetica, Dicroidium odontopteroides, "Dicroidium feistmanteli" = Dicroidium feistmantelii, "Dicroidium coriacium" = Dicroidium coriaceum, Feruglioa samaroides, Xylopteris rigida, Fanerotheca extans Pteruchus rhaetica Geinitz 1876 YPM PC 1136 Dicroidium odontopteroides Morris 1845 YPM PC 1047-8, 1051, 1088 "Dicroidium feistmanteli" = Dicroidium feistmantelii Johnston 1847 YPM PC 1045, 1049-50, 1119 "Dicroidium coriacium" = Dicroidium coriaceum Johnston 1886 YPM PC 1988-93 Feruglioa samaroides Frenguelli 1944 YPM PC 1064, 1105 Xylopteris rigida Dun 1909 YPM PC 1063, 1070-3, 1075-9, 1102 Fanerotheca extans Frenguelli 1944 YPM PC 1099
Insecta
Hemiptera - Scytinopteridae	Tipuloidea rhaetica n. gen. n. sp. Tipuloidea rhaetica n. gen. n. sp. Wieland 1925 true bug YPM IP 034956
Mecoptera - Mesopsychidae	Tipulidites affinis n. gen. n. sp. Tipulidites affinis n. gen. n. sp. Wieland 1925 scorpionfly YPM IP 034957