Perfil Tres Lagos (Cretaceous to of Argentina)

Where: Santa Cruz, Argentina (49.6° S, 71.5° W: paleocoordinates 54.4° S, 42.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Piedra Clavada Formation, Early/Lower Albian to Early/Lower Albian (112.0 - 105.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: prodelta; lithified, yellow, sandy sandstone and lithified, black, gray, argillaceous shale

• It is suggested that the enviroment is a deltaic submerged zone in prodelta facies, delta front, interdistributary bays and interdistributary channels.
• The Piedra Clavada Formation is compose by yeloowish sandstones, dark-grey shales, heterolithic facies and scarce conglomerates and coquinas.

Size class: microfossils

• Other means palynomorphs

Preservation: original sporopollenin

Reposited in the MACN

Collection methods: bulk, chemical, hydrochloric, hydroflouric,

Primary reference: A. Archangelsky, S. Archangelsky, D. G. Poire and N. D. Canessa. 2008. Aptian Angiosperm Pollen from the Ticó Flora Patagonia, Argentina. Revista del Museo Argentino de Ciencias Naturales 10(2):185-198 [C. Jaramillo/P. Santamarina]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 149746: authorized by Carlos Jaramillo, entered by Patricio Santamarina on 24.08.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Ostracoda
 Palaeocopida -
Circulina "sp."
Circulina "sp." Sepkoski 2002 ostracod
Ginkgoopsida
 Ephedrales -
Ephedripites "sp."
Ephedripites "sp." Bolkhovitina and Potonié 1958
Interulobites triangularis
  -
Interulobites triangularis
Interulobites triangularis Paden et al. 1971
Marchantiopsida
 Sphaerocarpales -
Aequitriradites cf. superspinulosus
Aequitriradites cf. superspinulosus Archangelsky et al. 2008
  - Marchantiidae
Triporoletes reticulatus
Staplinisporites caminus
  -
Staplinisporites caminus
Equisetopsida
 Pinidae - Pinidae
Balmeiopsis limbatus, Cyclusphaera radiata, Classopollis "sp."
Cyclusphaera radiata Archangelsky 1983
Classopollis "sp." Pflug 1953
 Anthocerotidae - Anthocerotidae
Foraminisporis wonthaggiensis
Schrankipollis
  -
Schrankipollis "sp."
Schrankipollis "sp." Doyle et al. 1990
Lycopodiopsida
 Selaginellales -
Densoisporites corrugatus
Densoisporites corrugatus Archangelsky and Gamerro 1965 clubmoss
 Selaginellales - Selaginellaceae
Neoraistrickia "sp."
Neoraistrickia "sp." Potonié 1956 spikemoss
 Lycopodiales -
Retitriletes boqueroense
Retitriletes boqueroense Archangelsky and Villar de Seoane 1998 clubmoss
Polypodiopsida
 Schizaeales - Polypodiidae
Cicatricosisporites cf. venustus, Palaeomohria "sp 1", Palaeomohria "Type 1", Palaeomohria "Type 2", Palaeomohria "Type 3", Palaeomohria patagonica
Palaeomohria "sp 1" Archangelsky 2009
Palaeomohria "Type 1" Archangelsky 2009
Putative Palaeomohria spore type
Palaeomohria "Type 2" Archangelsky 2009
Putative Palaeomohria spore type
Palaeomohria "Type 3" Archangelsky 2009
Putative Palaeomohria spore type
Palaeomohria patagonica Archangelsky 2009
  -
Biretisporites "sp."
Biretisporites "sp." Delcourt et al. 1963
  - Blechnaceae
Leptolepidites major, Leptolepidites verrucatus
  - Marsileaceae
Crybelosporites stylosus, Crybelosporites cf. berberioides
 Coniferales - Podocarpaceae
Callialasporites trilobatus, Microcachrydites "sp.", Gamerroites volkheimeri
Callialasporites trilobatus Balme 1957 podocarp
f. dampieri - f. trilobatus
Microcachrydites "sp." Cookson 1947 podocarp
Gamerroites volkheimeri Archangelsky 1988 podocarp
Angiospermae
 Chloranthales - Chloranthaceae
Clavatipollenites "sp."