Where: Neuquén, Argentina (40.7° S, 71.1° W: paleocoordinates 43.1° S, 61.9° W)
• coordinate stated in text
• local area-level geographic resolution
When: Huitrera Formation, Middle Eocene to Middle Eocene (47.8 - 33.9 Ma)
• microflora of Middle to Late Eocene age.
• formation-level stratigraphic resolution
Environment/lithology: lacustrine - small; lithified, massive, green, argillaceous mudstone and lithified, concretionary, sandy sandstone
• Microflora correspond to sediments of the eastern most volcanic arc (of Paleocene to Eocene age) of northwestern extra-andean Patagonia.
• Los niveles portadores forman parte de una sucesión alternante de areniscas y fangolitas, con un espesor aflorante de 10-12 m. Las fangolitas son verdosas hasta marrones y algo expansibles, de aspecto macizo y estructura esferoidal. las areniscas muestran estratificación fina, ligeramente ondulante y ocurren en dos o tres paquetes con arreglo estrato-creciente.
•
•Fossils from Melendi et. al. 2003 come from 8 m of pelites outcrop alternated with tuffites, both interbedded with vulcanites. In this sector, three levels with well preserved palynomorphs were identified.
Size class: microfossils
• Other: Palynomorphs.
Preservation: mold/impression, adpression, original sporopollenin
Collection methods: chemical, mechanical,
• Repositorio de palinología: Departamento de Geología, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.
•
•Repositorio para anuros: Asociación Paleontológica Bariloche.
Primary reference: A. M. Baez, M. C. Zamaloa, and E. J. Romero. 1990. Nuevos hallazgos de microfloras y anuros Paleógenos en el Noroeste de Patagonia: implicancias Paleoambientales y Paleobiogeográficas. Ameghiniana 27(1-2):83-94 [C. Jaramillo/J. Ceballos/A. Cardenas ]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 136911: authorized by Carlos Jaramillo, entered by Juliana Ceballos on 06.12.2012, edited by Carlos Jaramillo
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| unclassified |
| - |
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| Magnoliopsida |
| - |
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| Coniferales - Podocarpaceae |
Phyllocladidites mawsonii, Podocarpidites spp., Podocarpidites magnus, Podocarpidites sp., Podocarpidites ellipticus, " Podocarpidites microreticuloidatus" = Podocarpidites microreticuloidata, Podocarpidites exiguus, Podocarpidites marwickii, Podocarpidites elegans, Podocarpidites rugulosus, Trisaccites microsaccatum, Dacrycarpites sp., Dacrycarpites australiensis, Microcachryidites antarcticus, Gamerroites psilasaccus, Lygistepollenites florinii
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| Angiospermae |
| Fagales - |
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| Sapindales - Sapindaceae |
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| Proteales - Proteaceae |
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| Proteales - |
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| Santalales - Loranthaceae |
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| Gunnerales - |
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| Buxales - |
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| Pteridopsida |
| - |
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| Polypodiopsida |
| - Dicksoniaceae |
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| Schizaeales - Polypodiidae |
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| Psilatricolpites |
| - |
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| Equisetopsida |
| Pinidae - Pinidae |
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| Amphibia |
| Salientia - Pipidae |
Pipidae sp. Gray 1825 clawed frog
CP-Bar 2361-2363-2364;1610-1611-1612-1613;1613-1515;1609;3083- 1a y b; another concretions without number
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| Ascomycota - Microthyriaceae |
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| Pluricellaesporites |
| - |
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| Multicellaesporites |
| - |
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| Inapertisporites |
| - |
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| Dicellaesporites |
| - |
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