Where: San Juan, Argentina (29.5° S, 69.5° W: paleocoordinates 30.0° S, 65.8° W)
• coordinate based on nearby landmark
When: La Ollita Formation, Middle Miocene (16.0 - 11.6 Ma)
• Under review is the definition stratigraphic of the La Ollita Formation. This name "La Ollita" has been used with different meanings, it is convenient to use the term informal "Serie del Yeso".
Environment/lithology: lacustrine; lithified shale and lithified gypsum
Size class: microfossils
Preservation: soft parts, original sporopollenin
Collection methods: hydrochloric, hydroflouric
• Microscopic preparations are deposited in the palinoteca of Centro de Investigaciones en Recursos Geológicos with the acronym CIRGEO Palin and catalog numbers 1125-1129.
Primary reference: V. D. Barreda, P. R. Gutiérrez, and C. O. Limarino. 1998. Edad y paleoambiente de la "Serie del Yeso", Valle del Cura, provincia de San Juan: evidencias palinológicas. Ameghiniana 35(3):321-335 [C. Jaramillo/J. Ceballos/A. Cardenas ]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 144061: authorized by Carlos Jaramillo, entered by Juliana Ceballos on 30.04.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Ginkgoopsida | |
Equisetosporites notensis Romero 1977
Equisetosporites claricristatus Barreda 1997
Equisetosporites lusaticus Barreda 1997 | |
Dicotyledoneae | |
Myrtaceidites sp. Cookson and Pike 1960 | |
Angiospermae | |
Polyadopollenites sp. Pflug and Thomson 1953 legume
Margocolporites vanwijhei Germeraad et al. 1968 legume | |
Nothofagidites acromegacanthus Menendez and Caccavari 1975
Nothofagidites saraensis Menendez and Caccavari 1975 | |
Proteacidites sp. Cookson and Couper 1953 | |
Lymingtonia sp. Erdtman 1960 | |
Chenopodipollis chenopodiaceoides Truswell 1985 | |
Poluspissusites sp. Salard-Cheboldaeff 1978 | |
Tubulifloridites antipodica Cookson 1947 daisy | |
Graminidites sp. Potonie 1960 bamboo | |
Magnoliopsida | |
Tetracolporites spectabilis, Senipites patagonica, Malvacipollis subtilis, Rhoipites sp., Rhoipites cienaguensis, Rhoipites baculatus, Striatricolporites gamerroi
Tetracolporites spectabilis Pocknall and Mildenhall 1984
Senipites patagonica Barreda 1997
Malvacipollis subtilis Stover 1973
Rhoipites cienaguensis Barreda 1997
Rhoipites baculatus Archangelsky 1973
Striatricolporites gamerroi Archangelsky 1973 | |
Podocarpidites sp. Cookson 1947 podocarp
Podocarpidites elegans Romero 1977 podocarp
Podocarpidites cf. ellipticus Cookson 1947 podocarp | |
Polypodiopsida | |
Biretisporites sp. Delcourt et al. 1963 | |
Pteridopsida | |
Deltoidospora sp. Miner 1935
Leiotriletes sp. Potonie and Kremp 1954 | |
Mutisiapollis | |
Mutisiapollis viteauensis Barreda 1998 | |
Malvacipolloides | |
Malvacipolloides comodoroensis Barreda 1993 | |
Cyperaceaepollis neogenicus | |
Cyperaceaepollis neogenicus Krutzsch 1970 | |
Baumannipollis | |
Baumannipollis sp. Barreda 1993 | |
Baumannipollis variaperturatus | |
Baumannipollis variaperturatus Barreda 1993 |