Picún Leufú (Jurassic to of Argentina)

Also known as Picun Leufu

Where: Neuquen, Argentina (38.9° S, 70.2° W: paleocoordinates 37.3° S, 32.5° W)

• coordinate estimated from map

When: Picún Leufú Formation (La Amarga Group), Late/Upper Tithonian to Late/Upper Tithonian (150.8 - 139.8 Ma)

• It contains those sediments lying between the Vaca Muerta Formation and the Mulichinco Formation in the southern part of the basin.

• bed-level stratigraphic resolution

Environment/lithology: dolomitic, intraclastic, ooidal, gray, yellow, calcareous grainstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: H. Leanza, A. Zeiss, A. Cione, W.C. Dullo, E. Flugel, J.I. Carate-Zubillaga, and Z. Gasparini. 1990. Upper Jurassic Lithographic Limestones from Argentina (Neuquen Basin): Stratigraphy and Fossils. Facies 22:169-186 [J. Alroy/J. Martinelli]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 135627: authorized by John Alroy, entered by Julieta Martinelli on 28.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
 Hiatellida - Hiatellidae
 Pholadomyida - Pholadomyidae
Pholadomya gigantea Sowerby 1836 clam
 Lucinida - Lucinidae
Lucina neuquensis Haupt 1907 clam
 Trigoniida - Myophorelloidae
 Trigoniida - Trigoniidae
 Trigoniida -
Cephalopoda
 Ammonitida - Himalayitidae
 Ammonitida - Neocomitidae
Berriasella sp. Uhlig 1905 ammonite
Substeueroceras sp. Spath 1922 ammonite
 Ammonitida - Simoceratidae
Volanoceras sp. Geyssant 1985 ammonite
 Ammonitida - Perisphinctidae