Gateway to the Paleobiology Database
La Mendieta (Paleocene of Argentina)

Where: Jujuy, Argentina (24.3° S, 65.0° W: paleocoordinates 27.1° S, 53.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Maíz Gordo Formation, Late/Upper Paleocene (58.7 - 55.8 Ma)

• "late Paleocene"

Environment/lithology: lacustrine - small; lithified, green shale and stromatolitic bindstone

• "The Maíz Gordo Formation, related to the last main flooding event of the basin, shows typical lacustrine limestone values, possibly with low organic productivity"

•The lake which formed the Maiz Gordo formation must have been very shallow because it has alternating lacustrine and partially exposed mudflat deposits

• "Green shale and stromatolitic boundstone facies indicate a carbonate mudflat environment interpreted as a period of high-stand water-depth (green shales), and progressively shallower water with stromatolitic boundstone formation (del Papa 1999)"

Size class: macrofossils

Preservation: adpression

Collection methods: Repository: Departamento Científico Paleozoología Invertebrados, Museo de La Plata, Argentina

Primary reference: J. F. Petrulevicius and A. Nel. 2002. A new libelluloid dragonfly from late Paleocene deposits in Argentina (Odonata: Italoansida). European Journal of Entomology 99:485-489 [J. Alroy/J. Alroy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113004: authorized by John Alroy, entered by John Alroy on 18.07.2011, edited by Jered Karr and Matthew Clapham

Creative Commons license: CC BY (attribution)