Pampa de Jones (Nahuel Huapi Este): Ypresian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Angiospermae - Laurales - Lauraceae
Lauraceae indet. leaf Jussieu 1789
Coniferales - Cupressaceae
Coniferales - Podocarpaceae
Podocarpaceae indet. microspore Endlicher 1847
Amphibia - Temnospondyli - Pipidae
Insecta - Odonata - Synlestidae
Petrulevičius 2015 1 specimen
MAPBAR 4138
see common names

Geography
Country:Argentina State/province:Neuquén
Coordinates: 41.0° South, 71.2° West (view map)
Paleocoordinates:42.3° South, 60.5° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Paleogene Epoch: Eocene
Stage: Ypresian 10 m.y. bin: Cenozoic 2
Key time interval: Ypresian
Age range of interval: 56 - 48.07 m.y. ago
Age estimate: 54.24 ± 0.45 Ma (Ar/Ar)
Stratigraphy
Formation:Huitrera
Stratigraphic resolution:group
Stratigraphy comments: "Middle Eocene – Early Oligocene", later dated to the early Eocene (40Ar/39Ar of 54.24 +/- 0.45 Ma)
Lithology and environment
Primary lithology:planar lamination,brown,green lithified silty mudstone
Secondary lithology: sandstone
Includes fossils?Y
Lithology description: Most of the macrofossils occur in a blocky, silty mudstone unit of 1 m thickness (Unit 16 in Wilf et al., 2010)
Environment:crater lake Tectonic setting:volcanic basin
Geology comments: Volcanic lacustrine environment probably located near a lake margin
Taphonomy
Modes of preservation:body,adpression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Museo Palaeontológico (BAR), San Carlos de Bariloche, also called Museo Asociación Paleontológica Bariloche (MAPBAR)
Metadata
Database number:84702
Authorizer:J. Alroy, M. Clapham Enterer:J. Alroy, M. Clapham
Modifier:M. Clapham Research group:paleoentomology,vertebrate
Created:2008-11-06 20:23:57 Last modified:2025-02-22 15:12:02
Access level:the public Released:2008-11-06 20:23:57
Creative Commons license:CC0
Reference information

Primary reference:
28411. A. M. Báez and L. A. Pugener. 2003. Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution. Zoological Journal of the Linnean Society 139(3):439-476 [J. Alroy/J. Alroy]

Secondary references:

61427 J. F. Petrulevičius. 2015. A new Synlestidae damselfly (Insecta: Odonata: Zygoptera) from the early Eocene of Nahuel Huapi Este, Patagonia, Argentina. Arquivos Entomolóxicos 14:287-294 [M. Clapham/M. Clapham/M. Clapham]