Archaeocyaths from South America: Review and a new record
In South America, autochthonous archaeocyathan faunas preserved in Early Cambrian limestones have not been found yet. Nevertheless, a few well-documented occurrences of these fossils in clasts contained in coarse-grained rocks of a wide age range have been discovered in recent years. Erratic limesto...
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ftunibueairesbd:paper:paper_00721050_v48_n2-3_p114_Gonzalez 2023-05-15T13:50:11+02:00 Archaeocyaths from South America: Review and a new record Naipauer, Maximiliano Sato, Ana María 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00721050_v48_n2-3_p114_Gonzalez https://hdl.handle.net/20.500.12110/paper_00721050_v48_n2-3_p114_Gonzalez unknown https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00721050_v48_n2-3_p114_Gonzalez http://hdl.handle.net/20.500.12110/paper_00721050_v48_n2-3_p114_Gonzalez Archaeocyaths Buenos Aires Gondwana Late Palaeozoic glaciations Sierras Australes South America biostratigraphy Cambrian Carboniferous diamictite fossil record glaciation invertebrate limestone new record Ordovician paleogeography paleontology provenance reconstruction sessile species species occurrence Falkland Islands (Malvinas) Archaeocyatha 2013 ftunibueairesbd https://doi.org/20.500.12110/paper_00721050_v48_n2-3_p114_Gonzalez 2023-02-16T02:24:34Z In South America, autochthonous archaeocyathan faunas preserved in Early Cambrian limestones have not been found yet. Nevertheless, a few well-documented occurrences of these fossils in clasts contained in coarse-grained rocks of a wide age range have been discovered in recent years. Erratic limestone blocks from the Late Carboniferous-Early Permian Fitzroy Tillite Formation in the Falkland/Malvinas Islands yielded three archaeocyath taxa. Also, seven taxa were reported from archaeocyathan limestone clasts in a metaconglomerate of the Cambro-Ordovician El Jagüelito Formation in northern Patagonia. In addition, a new record from the Late Carboniferous-Early Permian Sauce Grande Formation diamictites in Sierras Australes, Buenos Aires Province, Argentina, is presented herein. Preservation of this scarce new material is poor, but at least three different taxa can be distinguished. The most likely source of all archaeocyathan limestone clasts found in southern South America is the Shackleton Limestone from the Transantarctic Mountains in East Antarctica. The new record from the Sauce Grande Formation and the inferred clast provenance reinforce the correlation between this unit, the Dwyka Tillite (South Africa) and the Fitzroy Tillite Formation (Falklands/Malvinas), suggesting a very wide distribution of these Antarctic occurrences during the Late Carboniferous-Early Permian Gondwana glaciation (Episode III). Thus, even though being allochthonous, archaeocyaths are emerging as a new key biological feature for Gondwana palaeogeographic reconstructions. © 2012 John Wiley & Sons, Ltd. Fil:Naipauer, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sato, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Other/Unknown Material Antarc* Antarctic Antarctica East Antarctica Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) Antarctic Argentina East Antarctica Fitzroy ENVELOPE(-66.964,-66.964,-68.189,-68.189) Patagonia Shackleton Transantarctic Mountains |
institution |
Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
topic |
Archaeocyaths Buenos Aires Gondwana Late Palaeozoic glaciations Sierras Australes South America biostratigraphy Cambrian Carboniferous diamictite fossil record glaciation invertebrate limestone new record Ordovician paleogeography paleontology provenance reconstruction sessile species species occurrence Falkland Islands (Malvinas) Archaeocyatha |
spellingShingle |
Archaeocyaths Buenos Aires Gondwana Late Palaeozoic glaciations Sierras Australes South America biostratigraphy Cambrian Carboniferous diamictite fossil record glaciation invertebrate limestone new record Ordovician paleogeography paleontology provenance reconstruction sessile species species occurrence Falkland Islands (Malvinas) Archaeocyatha Naipauer, Maximiliano Sato, Ana María Archaeocyaths from South America: Review and a new record |
topic_facet |
Archaeocyaths Buenos Aires Gondwana Late Palaeozoic glaciations Sierras Australes South America biostratigraphy Cambrian Carboniferous diamictite fossil record glaciation invertebrate limestone new record Ordovician paleogeography paleontology provenance reconstruction sessile species species occurrence Falkland Islands (Malvinas) Archaeocyatha |
description |
In South America, autochthonous archaeocyathan faunas preserved in Early Cambrian limestones have not been found yet. Nevertheless, a few well-documented occurrences of these fossils in clasts contained in coarse-grained rocks of a wide age range have been discovered in recent years. Erratic limestone blocks from the Late Carboniferous-Early Permian Fitzroy Tillite Formation in the Falkland/Malvinas Islands yielded three archaeocyath taxa. Also, seven taxa were reported from archaeocyathan limestone clasts in a metaconglomerate of the Cambro-Ordovician El Jagüelito Formation in northern Patagonia. In addition, a new record from the Late Carboniferous-Early Permian Sauce Grande Formation diamictites in Sierras Australes, Buenos Aires Province, Argentina, is presented herein. Preservation of this scarce new material is poor, but at least three different taxa can be distinguished. The most likely source of all archaeocyathan limestone clasts found in southern South America is the Shackleton Limestone from the Transantarctic Mountains in East Antarctica. The new record from the Sauce Grande Formation and the inferred clast provenance reinforce the correlation between this unit, the Dwyka Tillite (South Africa) and the Fitzroy Tillite Formation (Falklands/Malvinas), suggesting a very wide distribution of these Antarctic occurrences during the Late Carboniferous-Early Permian Gondwana glaciation (Episode III). Thus, even though being allochthonous, archaeocyaths are emerging as a new key biological feature for Gondwana palaeogeographic reconstructions. © 2012 John Wiley & Sons, Ltd. Fil:Naipauer, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sato, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
author |
Naipauer, Maximiliano Sato, Ana María |
author_facet |
Naipauer, Maximiliano Sato, Ana María |
author_sort |
Naipauer, Maximiliano |
title |
Archaeocyaths from South America: Review and a new record |
title_short |
Archaeocyaths from South America: Review and a new record |
title_full |
Archaeocyaths from South America: Review and a new record |
title_fullStr |
Archaeocyaths from South America: Review and a new record |
title_full_unstemmed |
Archaeocyaths from South America: Review and a new record |
title_sort |
archaeocyaths from south america: review and a new record |
publishDate |
2013 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00721050_v48_n2-3_p114_Gonzalez https://hdl.handle.net/20.500.12110/paper_00721050_v48_n2-3_p114_Gonzalez |
long_lat |
ENVELOPE(-66.964,-66.964,-68.189,-68.189) |
geographic |
Antarctic Argentina East Antarctica Fitzroy Patagonia Shackleton Transantarctic Mountains |
geographic_facet |
Antarctic Argentina East Antarctica Fitzroy Patagonia Shackleton Transantarctic Mountains |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00721050_v48_n2-3_p114_Gonzalez http://hdl.handle.net/20.500.12110/paper_00721050_v48_n2-3_p114_Gonzalez |
op_doi |
https://doi.org/20.500.12110/paper_00721050_v48_n2-3_p114_Gonzalez |
_version_ |
1766253181447176192 |