Where: La Rioja, Argentina (28.9° S, 67.5° W: paleocoordinates 29.4° S, 63.9° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Del Buey Formation (Angulos Group), Middle Miocene (16.0 - 11.6 Ma)
• bed-level stratigraphic resolution
Environment/lithology: lacustrine; lithified, green, yellow shale
•
•La Formación del Buey es una unidad predominantemente pelítica, de color rosado pardusca a rojiza. Ocasionalmente, se intercalan conglomerados finos mantiformes y lenticulares, y niveles carbonáticos tabulares, en parte nodulares y en parte finamente laminados con extensión lateral (mayor a 1km).
Size class: microfossils
• Pollen
Preservation: soft parts, original sporopollenin
Collection methods: chemical, hydroflouric
Primary reference: V. D. Barreda, E. G. Ottone, F. M. Dávila and R. A. Astini. 2006. Edad y paleoambiente de la Formación del Buey (Mioceno), sierra de Famatina, La Rioja, Argentina: evidencias sedimentológicas y palinológicas. Ameghiniana 42(1):215-226 [C. Jaramillo/J. Moreno/J. Moreno]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 153418: authorized by Carlos Jaramillo, entered by Jessica Moreno on 16.12.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Chlorophyceae | |
Pediastrum sp. Meyen 1829 | |
Magnoliopsida | |
Senipites sp. Srivastava 1969 | |
Podocarpidites sp. Cookson 1947 podocarp | |
Angiospermae | |
Tubulifloridites antipodica Cookson 1947 daisy | |
Chenopodipollis chenopodiaceoides Truswell 1985 | |
Tricolpites trioblatus Mildenhall and Pocknall 1989 | |
Sparganiaceaepollenites barungensis Harris 1972 | |
Polypodiopsida | |
Leptolepidites sp. Couper 1953 | |
Cicatricosisporites sp. Potonie and Gelletich 1933 | |
Muricingulisporis | |
Muricingulisporis chenquensis Barrera 1992 | |
Algae | |
Botryococcus sp. Kutzing 1849 | |
Ginkgoopsida | |
Equisetosporites notensis Romero 1977
Equisetosporites claricristatus Barreda 1997 | |
Magnaperiporites | |
Magnaperiporites sp. González-Guzmán 1967 | |
Reboulisporites fuegiensis | |
Reboulisporites fuegiensis Zamaloa and Romero 1990 | |
Baumannipollis | |
Baumannipollis sp. Barreda 1993
Baumannipollis "sp. 1" Barreda 1993
Baumannipollis "sp. 2" Barreda 1993 | |
Mutisiapollis | |
Mutisiapollis sp. Macphail and Hill 1994 |