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Baquer贸 - Anfiteatro de Tic贸, Santa Cruz Province, Argentina

GroupBaquer贸
FormationAnfiteatro de Tic贸
Age:125 - 113 Ma
Early/Lower Cretaceous
IntervalAptian
Tectonic SettingForeland basin
Lithologyshale/mudstone, sandstone/mudstone, conglomerate/sandstone, siltstone/sandstone
Number of Collections6
Number of Occurrences27

Recorded Sample Locations

LocationRegionStratigraphic Name
Bajo GrandeR铆o Chico Department, Santa Cruz Province, ArgentinaBaquer贸 - Anfiteatro de Tic贸
Anfiteatro de Tic贸Magallanes Department, Santa Cruz Province, ArgentinaBaquer贸 - Anfiteatro de Tic贸
Cerro CentinelaMagallanes Department, Santa Cruz Province, ArgentinaBaquer贸 - Anfiteatro de Tic贸
Estancia La MagdalenaDeseado Department, Santa Cruz Province, ArgentinaBaquer贸 - Anfiteatro de Tic贸

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Baquer贸 - Bajo Tigre125 - 113 Ma
Early/Lower Cretaceous		tuff3

Recorded Fossils

Accepted NameHierarchyAge
Nymphaeaphyll
informal		98Nymphaeaphyll125 - 113 Ma
Early/Lower Cretaceous
Ricciopsis grandensis
species		7Marchantiales : Ricciopsis : Ricciopsis grandensis125 - 113 Ma
Early/Lower Cretaceous
Anacostia sp.
genus		6Anacostia125 - 113 Ma
Early/Lower Cretaceous
Ticoa lanceolata
species		7Ticoa : Ticoa lanceolata125 - 113 Ma
Early/Lower Cretaceous
Sphenopteris sp.
genus		6Plantae : Tracheophyta : Lyginopteridaceae : Sphenopteris125 - 113 Ma
Early/Lower Cretaceous
Agathoxylon sp.
genus		6Plantae : Tracheophyta : Pinopsida : Pinales : Araucariaceae : Agathoxylon125 - 113 Ma
Early/Lower Cretaceous
Alkastrobus peltatus
species		7Plantae : Tracheophyta : Pinopsida : Pinales : Araucariaceae : Alkastrobus : Alkastrobus peltatus125 - 113 Ma
Early/Lower Cretaceous
Brachyoxylon sp.
genus		6Plantae : Pinophyta : Pinopsida : Pinales : Cheirolepidiaceae : Brachyoxylon125 - 113 Ma
Early/Lower Cretaceous
Clavatipollenites sp.
genus		6Plantae : Tracheophyta : Magnoliopsida : Chloranthales : Chloranthaceae : Clavatipollenites125 - 113 Ma
Early/Lower Cretaceous
Blattulopsis popovi
species		7Animalia : Arthropoda : Insecta : Blattodea : Mesoblattinidae : Blattulopsis : Blattulopsis popovi125 - 113 Ma
Early/Lower Cretaceous
Argentinopetala archangelskyi
species		7Animalia : Arthropoda : Insecta : Odonata : Petaluridae : Argentinopetala : Argentinopetala archangelskyi125 - 113 Ma
Early/Lower Cretaceous
Androstrobus munku
species		7Plantae : Cycadophyta : Cycadopsida : Cycadales : Beaniaceae : Androstrobus : Androstrobus munku125 - 113 Ma
Early/Lower Cretaceous
Androstrobus patagonicus
species		7Plantae : Cycadophyta : Cycadopsida : Cycadales : Beaniaceae : Androstrobus : Androstrobus patagonicus125 - 113 Ma
Early/Lower Cretaceous
Androstrobus rayen
species		7Plantae : Cycadophyta : Cycadopsida : Cycadales : Beaniaceae : Androstrobus : Androstrobus rayen125 - 113 Ma
Early/Lower Cretaceous
Mesosingeria oblonga
species		7Plantae : Tracheophyta : Cycadopsida : Cycadales : Mesosingeria : Mesosingeria oblonga125 - 113 Ma
Early/Lower Cretaceous
Restrepophyllum chiguoides
species		7Plantae : Tracheophyta : Cycadopsida : Cycadales : Zamiaceae : Restrepophyllum : Restrepophyllum chiguoides125 - 113 Ma
Early/Lower Cretaceous
Equisetites pusillus
species		7Plantae : Tracheophyta : Polypodiopsida : Equisetales : Equisetaceae : Equisetites : Equisetites pusillus125 - 113 Ma
Early/Lower Cretaceous
Ephedra sp.
genus		6Plantae : Tracheophyta : Gnetopsida : Ephedrales : Ephedraceae : Ephedra125 - 113 Ma
Early/Lower Cretaceous
Gleicheniaceae
family		5Plantae : Tracheophyta : Polypodiopsida : Gleicheniales : Gleicheniaceae125 - 113 Ma
Early/Lower Cretaceous
Adiantopteris tripinnata
species		7Plantae : Tracheophyta : Polypodiopsida : Polypodiales : Pteridaceae : Adiantopteris : Adiantopteris tripinnata125 - 113 Ma
Early/Lower Cretaceous
Schizaeaceae
family		5Plantae : Tracheophyta : Polypodiopsida : Schizaeales : Schizaeaceae125 - 113 Ma
Early/Lower Cretaceous

References

Archangelsky S. (1967) Notas sobre la flora fosil de la zona de Tico Provincia de Santa Cruz. 8. Seis especies del g茅nero Sphenopteris, Ameghiniana 5 4, 149-157
Pinto I. D. (1990) A new Lower Cretaceous Blattoid Insect from Argentina, Pesquisas 17 1-2, 11-14
Passalia M., Archangelsky S., et al (2003) A new early angiosperm leaf from the Anfiteatro de Tic贸 Formation (Aptian), Santa Cruz Province, Argentina , Revista del Museo Argentino de Ciencias Naturales 5 2, 245-252
Petrulevicius J. F., Nel A. (2003) Oldest Petalurid dragonfly (Insecta: Odonata): a Lower Cretaceous specimen from south Patagonia, Argentina, Cretaceous Research 24, 31-34
Archangelsky S., Villar de Seoane L. (2004) Cycadean diversity in the Cretaceous of Patagonia, Argentina. Three new Androstrobus species from the Baquer贸 Group, Review of Palaeobotany and Palynology 131, 1-28 doi:10.1016/j.revpalbo.2004.01.008
Del Fueyo G. M., Archangelsky S. (2005) A new araucarian pollen cone with in situ Cyclusphaera Elsik from the Aptian of Patagonia, Argentina, Cretaceous Research 26, 757-768 doi:10.1016/j.cretres.2005.04.005
Villar de Seoane L. (2005) Equisetites pusillus sp. nov. from the Aptian of Patagonia, Argentina, Revista del Museo Argentino de Ciencias Naturales, n. s 7 1, 43-49
Villar de Seoane L. (2005) New cycadalean leaves from the Anfiteatro de Tic贸 Formation, Early Aptian, Patagonia, Argentina, Cretaceous Research 26, 540-550 doi:10.1016/j.cretres.2005.02.004
Cladera G., del Fueyo G. M., et al (2007) Early Cretaceous riparian vegetation in Patagonia, Argentina, Revista del Museo Argentino de Ciencias Naturales 9 1, 49-58
Vera E. I. (2010) Estudios anat贸micos en paleofloras del Aptiano de Ant谩rtida y Patagonia, y su comparaci贸n, Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales, 294
Passalia M. G., Del Fueyo G., et al (2010) An Early Cretaceous zamiaceous cycad of South West Gondwana: Restrepophyllum nov. gen. from Patagonia, Argentina, Review of Palaeobotany and Palynology 161, 137-150 doi:10.1016/j.revpalbo.2010.04.001
Archangelsky S., Archangelsky A. (2013) Aptian angiosperm pollen from the Tic贸 Flora Patagonia, Argentina 174 3, 559-571 doi:10.1086/668693
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
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