PBDB Collection

Puesto Fernández - Bororó (Paleocene of Argentina)

Where: Chubut, Argentina (43.7° S, 67.8° W: paleocoordinates 46.2° S, 56.7° W)

When: Lower Member (Bororó Formation), Danian (66.0 - 61.6 Ma)

• This palynological assemblage was yielded by a single 15 cm thick bed.

Environment/lithology: marginal marine; lithified, carbonaceous mudstone

• The Lower Member of the Cerro Bororó Fm unconformably overlies the Late Cretaceous Chubut Group. An alternation of marginal marine strata and near-coast freshwater deposits occur in the sections.

• This palynological assemblage was yielded by a single 15 cm thick bed of carbonaceous mudstone.

Size class: microfossils

Preservation: soft parts, original sporopollenin

Collection methods: chemical, hydrochloric, hydroflouric,

• SEM studies (Phillips XL Serie 30) were done at the Museo “B. Rivadavia.”

Primary reference: L. Scafati, D. L. Melendi, and W. Volkheimer. 2009. A Danian subtropical lacustrine palynobiota from South America (Bororó Formation, San Jorge Basin, Patagonia - Argentina). Geological Acta 7(1-2):35-61 [C. Jaramillo/J. Moreno]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 152264: authorized by Carlos Jaramillo, entered by Jessica Moreno on 14.11.2013, edited by Carlos Jaramillo

Creative Commons license: CC BY (attribution)

Taxonomic list

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Life -	Leiosphaeridia hyalina Leiosphaeridia hyalina Eisenack 1958
unclassified
-	Pityrogramma sp., Monogemmites gemmatus, Dinocyst indet. Pityrogramma sp. Monogemmites gemmatus Dinocyst indet.
Schizosporis reticulatus
-	Schizosporis reticulatus Schizosporis reticulatus Cookson and Dettmann 1959
Integritetradites
-	Integritetradites sp. Integritetradites sp. Schrank and Mahmoud 2000
Cycadopites
-	Cycadopites spp. Cycadopites spp. Wodehouse 1933
Polypodiopsida
- Dicksoniaceae	Trilites parvallatus Trilites parvallatus Krutzsch 1959
- Gleicheniaceae	Clavifera triplex, Gleicheniidites senonicus Clavifera triplex Bolkhovitina 1966 Gleicheniidites senonicus Ross 1949
- Marsileaceae	Gabonisporis vigourouxii Gabonisporis vigourouxii Boltenhagen 1967
-	Biretisporites sp. Biretisporites sp. Delcourt et al. 1963
- Osmundaceae	Rugulatisporites chubutensis, Baculatisporites comaumensis Rugulatisporites chubutensis Baldoni 1992 Baculatisporites comaumensis Potonie 1953
- Polypodiaceae	Trichotomosulcites subgranulatus, Laevigatosporites ovatus Trichotomosulcites subgranulatus Couper 1953 Laevigatosporites ovatus Wilson and Webster 1946
Polypodiales - Polypodiidae	Polypodiisporites irregularis Polypodiisporites irregularis Pocknal and Mildenhall 1984
Schizaeales - Polypodiidae	Klukisporites variegatus Klukisporites variegatus Couper 1958
Salviniales - Polypodiidae	Azollopsis tomentosa, Azollopsis tormentosa, Azollopsis intermedia Azollopsis tomentosa Azollopsis tormentosa Hall 1968 Azollopsis intermedia Sweet and Hills 1974
Gleicheniales - Polypodiidae	Dictyophyllidites harrisii Dictyophyllidites harrisii Couper 1958
Pteridopsida
-	Polypodiaceoisporites sp., Deltoidospora minor, Matonisporites crassiangulatus, Matonisporites equiexinus, Leiotriletes cf. regularis, Cyathidites patagonicus Polypodiaceoisporites sp. Potonie 1956 Deltoidospora minor Pocock 1970 Matonisporites crassiangulatus Levet-Carette 1964 Matonisporites equiexinus Couper 1958 Leiotriletes cf. regularis Krutzsch 1959 Cyathidites patagonicus Archangelsky 1972
Trilobosporites
-	Trilobosporites sp. Trilobosporites sp. Potonié 1956
Hepaticae
Marchantiales -	Ricciopsis sp. Ricciopsis sp. Lundblad 1954 liverwort
Cingutriletes
-	Cingutriletes australis Cingutriletes australis Archangelsky 1972
Marchantiopsida
Sphaerocarpales -	Aequitriradites spinulosus Aequitriradites spinulosus Cookson and Dettmann 1958
Bryopsida
-	Stereisporites antiquasporites Stereisporites antiquasporites Dettmann 1963
Pseudoschizaea
-	Pseudoschizaea circula Pseudoschizaea circula Christopher 1976
Algae
- Botryococcaceae	Botryococcus "sp. 1", Botryococcus "sp. 2", Botryococcus "sp. 3", Botryococcus "sp. 4", Botryococcus sp. Botryococcus "sp. 1" Kutzing 1849 Botryococcus "sp. 2" Kutzing 1849 Botryococcus "sp. 3" Kutzing 1849 Botryococcus "sp. 4" Kutzing 1849 Botryococcus sp. Kutzing 1849
- Zygnemataceae	Gelasinicysta vangeelii, Gelasinicysta vangeelii, Ovoidites spp., Ovoidites spp. Gelasinicysta vangeelii Head 1992 Gelasinicysta vangeelii Head 1992 Ovoidites spp. Krutzsch 1959 Ovoidites spp. Krutzsch 1959

Coniferales - Podocarpaceae	Dacrycarpites australiensis, "Podocarpidites microreticuloidatus" = Podocarpidites microreticuloidata, Podocarpidites marwickii, Podocarpidites exiguus, Podocarpidites elegans, Podocarpidites rugulosus, Podocarpidites verrucosus, Lygistepollenites florinii, Microcachryidites antarcticus, Trisaccites microsaccatus Dacrycarpites australiensis Cookson and Pike 1953 podocarp "Podocarpidites microreticuloidatus" = Podocarpidites microreticuloidata Cookson 1947 podocarp Podocarpidites marwickii Couper 1953 podocarp Podocarpidites exiguus Harris 1965 podocarp Podocarpidites elegans Romero 1977 podocarp Podocarpidites rugulosus Romero 1977 podocarp Podocarpidites verrucosus Volkheimer 1972 podocarp Lygistepollenites florinii Stover and Evans 1973 podocarp Microcachryidites antarcticus Couper 1953 podocarp Trisaccites microsaccatus Couper 1953 podocarp
Angiospermae
Proteales -	Peninsulapollis gillii, Retidiporites camachoi Peninsulapollis gillii Dettmann and Jarzen 1988 Retidiporites camachoi Archangelsky 1973
Proteales - Proteaceae	Triporopollenites parviannulatus, Triporopollenites cf. ambiguus, Proteacidites cf. asperatus, Proteacidites granulatus, Proteacidites stipplatus, Proteacidites sp., Proteacidites tenuiexinus, cf. Beaupreaidites sp., Propylipollis lateflexus Triporopollenites parviannulatus Triporopollenites cf. ambiguus Couper 1973 Proteacidites cf. asperatus Proteacidites granulatus Proteacidites stipplatus Proteacidites sp. Cookson and Couper 1953 Proteacidites tenuiexinus Stover 1973 cf. Beaupreaidites sp. Potonié 1960 Propylipollis lateflexus Baldoni and Askin 1993
Gunnerales -	Tricolpites lillie, Tricolpites cf. perlongicolpus, Tricolpites reticulatus Tricolpites lillie Tricolpites cf. perlongicolpus Tricolpites reticulatus Couper 1953
Buxales -	Polypodiidites sp., Tuberculatosporites parvus Polypodiidites sp. Potonié 1966 Tuberculatosporites parvus Archangelsky 1972
Chloranthales - Chloranthaceae	Clavatipollenites sp. Clavatipollenites sp. Couper 1958
Mesangiosperms - Arecaceae	Spinizonocolpites spp., Spinizonocolpites complex, Longapertites andreisii, Longapertites patagonicus Spinizonocolpites spp. Muller 1968 palm Spinizonocolpites complex Frederiksen 1994 palm Longapertites andreisii Archangelsky 1973 palm Longapertites patagonicus Archangelsky 1973 palm
Poales - Typhaceae	Sparganiaceaepollenites barungensis Sparganiaceaepollenites barungensis Harris 1972
Mesangiosperms - Araceae	Proxapertites sp. Proxapertites sp. Van der Hammen 1956
Mesangiosperms - Liliaceae	Liliacidites variegatus, Liliacidites regularis Liliacidites variegatus Couper 1953 Liliacidites regularis Archangelsky 1973
Dicotyledoneae
Ericales - Ericaceae	Ericipites microtectatum, Ericipites scabratus Ericipites microtectatum heather Ericipites scabratus Harris 1965 heather
Angiospermae
Fagales - Juglandaceae	Momipites dilatus Momipites dilatus Stover et al. 1966
-	Monosulcites sp., Monosulcites minutiscabratus Monosulcites sp. Cookson and Couper 1953 Monosulcites minutiscabratus McIntyre 1968
Magnoliopsida
-	Gemmatricolpites subsphaericus, Rhoipites romeroi, Rhoipites minusculus, Rousea sp., Rousea patagonica Gemmatricolpites subsphaericus Archangelsky 1973 Rhoipites romeroi Baldoni 1987 Rhoipites minusculus Archangelsky 1973 Rousea sp. Srivastava 1969 Rousea patagonica Archangelsky 1973
Lycopodiopsida
Selaginellales -	Camarozonosporites ambigens, Foveosporites cf. lacunosus, Densoisporites velatus Camarozonosporites ambigens Playford 1971 clubmoss Foveosporites cf. lacunosus clubmoss Densoisporites velatus Dettmann 1963 clubmoss
Selaginellales - Selaginellaceae	Selaginella perinata, Neoraistrickia sp., Antulsporites clavus Selaginella perinata Frederiksen 1980 spikemoss Neoraistrickia sp. Potonié 1956 spikemoss Antulsporites clavus spikemoss
Selaginellales -	Ceratosporites equalis Ceratosporites equalis Cookson and Dettmann 1958 clubmoss
Lycopodiales -	Retitriletes austroclavatidites, Retitriletes rosewoodensis Retitriletes austroclavatidites Döring et al. 1963 clubmoss Retitriletes rosewoodensis de Jersey 1963 clubmoss
Dinophyceae
Peridiniales - Peridiniaceae	Peridinium sp., Peridinium aff. limbatum Peridinium sp. Ehrenberg 1830 aff.P. limbatum Peridinium aff. limbatum Lemmermann 1899
Distaverrusporites simplex
-	Distaverrusporites cf. simplex Distaverrusporites cf. simplex Muller 1966
Plicatopollis
-	Plicatopollis cretacea Plicatopollis cretacea Frederiksen and Christopher 1978