PBDB Collection

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

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Polypodiopsida
- Marsileaceae	Crybelosporites stylosus, Crybelosporites cf. berberioides Crybelosporites stylosus Dettmann 1963 Crybelosporites cf. berberioides Burger 1976
-	Biretisporites "sp." Biretisporites "sp." Delcourt et al. 1963
- Blechnaceae	Leptolepidites major, Leptolepidites verrucatus Leptolepidites major Couper 1953 Leptolepidites verrucatus Couper 1953
Schizaeales - Polypodiidae	Palaeomohria "sp 1", Palaeomohria "Type 1", Palaeomohria "Type 2", Palaeomohria "Type 3", Palaeomohria patagonica, Cicatricosisporites cf. venustus 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 Cicatricosisporites cf. venustus Deak 1963
Staplinisporites caminus
-	Staplinisporites caminus Staplinisporites caminus Pocock 1962
Marchantiopsida
- Marchantiidae	Triporoletes reticulatus Triporoletes reticulatus Playford 1971
Sphaerocarpales -	Aequitriradites cf. superspinulosus Aequitriradites cf. superspinulosus Archangelsky et al. 2008
Interulobites triangularis
-	Interulobites triangularis Interulobites triangularis Paden et al. 1971
Angiospermae
Chloranthales - Chloranthaceae	Clavatipollenites "sp." Clavatipollenites "sp." Couper 1958

Coniferales - Podocarpaceae	Gamerroites volkheimeri, Microcachrydites "sp.", Callialasporites trilobatus Gamerroites volkheimeri Archangelsky 1988 podocarp Microcachrydites "sp." Cookson 1947 podocarp Callialasporites trilobatus Balme 1957 podocarp f. dampieri - f. trilobatus
Equisetopsida
Pinidae - Pinidae	Balmeiopsis limbatus, Cyclusphaera radiata, Classopollis "sp." Balmeiopsis limbatus Balme 1957 Cyclusphaera radiata Archangelsky 1983 Classopollis "sp." Pflug 1953
Anthocerotidae - Anthocerotidae	Foraminisporis wonthaggiensis Foraminisporis wonthaggiensis Dettmann 1963
Schrankipollis
-	Schrankipollis "sp." Schrankipollis "sp." Doyle et al. 1990
Ginkgoopsida
Ephedrales -	Ephedripites "sp." Ephedripites "sp." Bolkhovitina and Potonié 1958
Lycopodiopsida
Lycopodiales -	Retitriletes boqueroense Retitriletes boqueroense Archangelsky and Villar de Seoane 1998 clubmoss
Selaginellales -	Densoisporites corrugatus Densoisporites corrugatus Archangelsky and Gamerro 1965 clubmoss
Selaginellales - Selaginellaceae	Neoraistrickia "sp." Neoraistrickia "sp." Potonié 1956 spikemoss
Ostracoda
Palaeocopida -	Circulina "sp." Circulina "sp." Sepkoski 2002 ostracod