1M - Perfil Mazarredo (Oligocene of Argentina)

Where: Santa Cruz, Argentina (47.0° S, 66.8° W: paleocoordinates 48.2° S, 58.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Monte León Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

Environment/lithology: lagoonal; lithified sandstone

• Esta sección, sobreyacente a Tobas de Sarmiento de la Edad Mamífero Deeadense, comprende 21 metros de pelitas y areniscas muy fosilíferas, en parte bioturbadas y con intercalaciones de areniscas.

Size class: microfossils

• Other: Palynomorphs

Preservation: soft parts, original sporopollenin

Collection methods: bulk, chemical, hydrochloric, hydroflouric,

• Repositorio: Palinoteca del Centro de Investigaciones en Recursos Geológicos (CIRGEO)

Primary reference: V. Barreda and S. Palamarczuk. 2000. Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina. Ameghiniana 37(1):103-117 [C. Jaramillo/J. Ceballos/P. Santamarina]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 151587: authorized by Carlos Jaramillo, entered by Patricio Santamarina on 08.10.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Prasinophytae
  -
Tasmanites sp. Newton 1875
Chlorophyceae
  -
Psilatricolporites operculatus
  -
"Psilatricolporites operculatus" = Ranunculacidites operculatus
"Psilatricolporites operculatus" = Ranunculacidites operculatus Jaramillo and Dilcher 2001
Pinopsida
 Pinales - Podocarpaceae
 Pinales - Araucariaceae
Monocotyledoneae
 Arecales -
Arecipites subverrucatus Mildenhall and Pocknall 1989
  -
 Liliales - Liliidae
Monocots
 Poales - Poaceae
Graminidites sp. Potonie 1960
Cycadopsida
 Gnetales -
Muricingulisporis
  -
Pteridopsida
  - Polypodiaceae
  -
Cyathidites sp. Couper 1953
 Cyatheales -
 Polypodiales -
Polypodiisporites radiatus Pocknall and Mildenhall 1984
Magnoliopsida
  -
Senipites patagonica Barreda 1997
Rhoipites baculatus Archangelsky 1973
 Canellales -
 Magnoliales - Chloranthaceae
 Fabales - Fabaceae
 Myrtales -
Myrtaceidites sp. Cookson and Pike 1960
 Proteales -
Proteacidites sp. Cookson and Couper 1953
 Fagales -
Nothofagidites saraensis Menendez and Caccavari 1975
Nothofagidites deminuta Quattrocchio 2000
  -
Tricolpites "sp. A" Potonié 1960
 Life -
Cymatiosphaera sp. Wetzel and Deflandre 1954 acritarcs
Pterospermella
  -
Pterospermella sp. Volkova 1979
Mutisiapollis
  -
Chenopodipollis
  -
Rubipollis oblatus
  -
Rubipollis oblatus Mildenhall and Pocknall 1989
Canthiumidites bellus
  -
Canthiumidites aff. bellus Mildenhall and Pocknall 1989
Quintiniapollis
  -