Sección Puerto Pirámide: Middle Miocene - Late/Upper Miocene, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Ricciaesporites sp. Nagy 1968
Nemathosphaeropsis spp.
Leiosphaeridia sp. Eisenack 1958
Equisetopsida - Araucariaceae
Araucariacites sp. Cookson and Couper 1953
Algae - Botryococcaceae
Botryococcus sp. Kutzing 1849
Ginkgoopsida - Ephedrales
Equisetosporites notensis Romero 1977
Equisetosporites claricristatus Barreda 1997
Angiospermae - Fagales
Nothofagidites spp.
Angiospermae - Gunnerales
Tricolpites trioblatus Mildenhall and Pocknall 1989
Angiospermae - Caryophyllales - Chenopodiaceae
Chenopodipollis chenopodiaceoides Truswell 1985
Angiospermae - Asterales - Asteraceae
Asteraceae informal sp. 1 Berchtold and Presl 1820
Asteraceae informal sp. 2 Berchtold and Presl 1820
Asteraceae informal sp. 3 Berchtold and Presl 1820
Tubulifloridites antipodica Cookson 1947
Tubulifloridites pleistocenicus Martin 1973
Tubulifloridites simplis Martin 1973
Angiospermae - Poales - Typhaceae
Sparganiaceaepollenites barungensis Harris 1972
Angiospermae - Poales - Poaceae
Graminidites sp. Potonie 1960
Angiospermae - Poales - Restionaceae
Milfordia sp. Erdtman 1960
Magnoliopsida
Rhoipites spp.
Striatricolporites gamerroi Archangelsky 1973
Coniferales - Podocarpaceae
Podocarpidites spp.
Polypodiopsida - Salviniales - Salviniaceae
Azolla sp. Lamarck 1783
Pteridopsida
Cyathidites spp.
Chlorophyceae
Pediastrum sp. Meyen 1829
unclassified
Tasmanites sp. Newton 1875
Mutisiapollis sp. Macphail and Hill 1994
Malvacipolloides comodoroensis Barreda 1993
Cyperaceaepollis neogenicus Krutzsch 1970
Dinophyceae - Gonyaulacales
Reticulatosphaera actinocoronata Bujak and Matsuoka 1986
Dinophyceae - Gonyaulacales - Gonyaulacaceae
Lingulodinium hemicystum McMinn 1991
Dinophyceae - Peridiniales
Tuberculodinium vancampoae Wall 1967
unclassified
Baumannipollis spp.
Glencopollis ornatus Pocknall and Mildenhall 1984
see common names

Geography
Country:Argentina State/province:Chubut County:Península Valdés
Coordinates: 42.6° South, 64.3° West (view map)
Paleocoordinates:42.8° South, 61.0° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
Key time interval:Middle Miocene - Late/Upper Miocene
Age range of interval:15.98000 - 5.33300 m.y. ago
Stratigraphy
Formation:Puerto Madryn
Local section:Puerto Pirámide Local bed:18,4 m
Local order:bottom to top
Lithology and environment
Primary lithology:fine,gray,yellow lithified silty,sandy not reported
Lithology description: La Formación Puerto Madryn agrupa sedimentitas marinas miocenas vinculadas con la transgresión "Entrerriense" que afloran en el sector nororiental de Patagonia, especialmente en la zona de Península Valdés, y está constituida por areniscas finas, pelitas y limolitas grises amarillentas, asociadas a potentes niveles de coquinas, alcanzando un espesor máximo de 150 metros.
Environment:marine indet.
Geology comments: Esta asociación se habría acumulado en un ambiente marino de plataforma, somero, con elevado aporte del continente.
Taphonomy
Modes of preservation:soft parts,original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection methods:chemical,hydrochloric,hydroflouric
Reason for describing collection:taxonomic analysis
Taxonomic list comments:El material se encuentra depositado en la colección de Paelopalinología del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" bajo la sigla BA Pal y el número de catálogo 5701.
Metadata
Database number:144210
Authorizer:C. Jaramillo Enterer:J. Ceballos, J. Moreno
Modifier:J. Moreno Research group:paleobotany
Created:2013-05-02 06:39:25 Last modified:2013-11-08 15:13:06
Access level:authorizer only Released:2015-05-02 06:39:25
Creative Commons license:CC BY
Reference information

Primary reference:
46631. L. Palazzesi and V. Barreda. 2004. Primer registro palinológico de la Formación Puerto Madryn, Mioceno de la provincia de Chubut, Argentina. Ameghiniana 41(3):355-362 [C. Jaramillo/J. Ceballos/J. Moreno]