Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/10420940.2016.1223654 http://hdl.handle.net/11449/162902 |
Resumo: | In the last ten years, more than 1,500 large burrows have been discovered in southern and southeastern Brazil, dug in rocks that include weathered granitic and basaltic rocks, sandstones, and other consolidated sediments. Their presence in geological units of Plio-Pleistocene age suggests that large extinct mammals produced these structures. The internal walls exhibit scratches and grooves left by the animals that inhabited these structures. The burrows are straight or slightly sinuous tunnels that measure up to tens of meters in length. One smaller type measures up to 1.5 meter in diameter, and the larger type can reach 2 meters in height and 4 meters in width, suggesting that such structures have been produced by at least two kinds of organisms. This contribution proposes a classification for these ichnofossils under the generic designation Megaichnus igen. nov., consisting of two ichnospecies identified so far: M. major and M. minor ispp. nov. Although the exact identity of the producers of the burrows is yet unknown, the dimensions and morphology point to ground sloths and giant armadillos. |
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Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South AmericaContinental ichnologySemifossorial mammalsPaleoburrowsMegaichnusDomichniaIn the last ten years, more than 1,500 large burrows have been discovered in southern and southeastern Brazil, dug in rocks that include weathered granitic and basaltic rocks, sandstones, and other consolidated sediments. Their presence in geological units of Plio-Pleistocene age suggests that large extinct mammals produced these structures. The internal walls exhibit scratches and grooves left by the animals that inhabited these structures. The burrows are straight or slightly sinuous tunnels that measure up to tens of meters in length. One smaller type measures up to 1.5 meter in diameter, and the larger type can reach 2 meters in height and 4 meters in width, suggesting that such structures have been produced by at least two kinds of organisms. This contribution proposes a classification for these ichnofossils under the generic designation Megaichnus igen. nov., consisting of two ichnospecies identified so far: M. major and M. minor ispp. nov. Although the exact identity of the producers of the burrows is yet unknown, the dimensions and morphology point to ground sloths and giant armadillos.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Fed Pampa, Campus Cacapava Do Sul, Cacapava Do Sul, BrazilUniv Fed Rio Grande do Sul, Inst Geociencias, Porto Alegre, RS, BrazilUniv Estadual Paulista, Lab Estratig & Paleontol, Campus Litoral Paulista, Sao Vicente, BrazilUniv Estadual Paulista, Lab Estratig & Paleontol, Campus Litoral Paulista, Sao Vicente, BrazilCNPq: 401772/2010-1Taylor & Francis IncUniv Fed PampaUniv Fed Rio Grande do SulUniversidade Estadual Paulista (Unesp)Lopes, Renato PereiraFrank, Heinrich TheodorCarvalho Buchmann, Francisco Sekiguchi de [UNESP]Caron, Felipe2018-11-26T17:34:53Z2018-11-26T17:34:53Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article133-145application/pdfhttp://dx.doi.org/10.1080/10420940.2016.1223654Ichnos-an International Journal For Plant And Animal Traces. Philadelphia: Taylor & Francis Inc, v. 24, n. 2, p. 133-145, 2017.1042-0940http://hdl.handle.net/11449/16290210.1080/10420940.2016.1223654WOS:000403834800004WOS000403834800004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIchnos-an International Journal For Plant And Animal Traces0,378info:eu-repo/semantics/openAccess2023-12-31T06:17:22Zoai:repositorio.unesp.br:11449/162902Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-31T06:17:22Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America |
title |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America |
spellingShingle |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America Lopes, Renato Pereira Continental ichnology Semifossorial mammals Paleoburrows Megaichnus Domichnia |
title_short |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America |
title_full |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America |
title_fullStr |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America |
title_full_unstemmed |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America |
title_sort |
Megaichnus igen. nov.: Giant Paleoburrows Attributed to Extinct Cenozoic Mammals from South America |
author |
Lopes, Renato Pereira |
author_facet |
Lopes, Renato Pereira Frank, Heinrich Theodor Carvalho Buchmann, Francisco Sekiguchi de [UNESP] Caron, Felipe |
author_role |
author |
author2 |
Frank, Heinrich Theodor Carvalho Buchmann, Francisco Sekiguchi de [UNESP] Caron, Felipe |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Univ Fed Pampa Univ Fed Rio Grande do Sul Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Lopes, Renato Pereira Frank, Heinrich Theodor Carvalho Buchmann, Francisco Sekiguchi de [UNESP] Caron, Felipe |
dc.subject.por.fl_str_mv |
Continental ichnology Semifossorial mammals Paleoburrows Megaichnus Domichnia |
topic |
Continental ichnology Semifossorial mammals Paleoburrows Megaichnus Domichnia |
description |
In the last ten years, more than 1,500 large burrows have been discovered in southern and southeastern Brazil, dug in rocks that include weathered granitic and basaltic rocks, sandstones, and other consolidated sediments. Their presence in geological units of Plio-Pleistocene age suggests that large extinct mammals produced these structures. The internal walls exhibit scratches and grooves left by the animals that inhabited these structures. The burrows are straight or slightly sinuous tunnels that measure up to tens of meters in length. One smaller type measures up to 1.5 meter in diameter, and the larger type can reach 2 meters in height and 4 meters in width, suggesting that such structures have been produced by at least two kinds of organisms. This contribution proposes a classification for these ichnofossils under the generic designation Megaichnus igen. nov., consisting of two ichnospecies identified so far: M. major and M. minor ispp. nov. Although the exact identity of the producers of the burrows is yet unknown, the dimensions and morphology point to ground sloths and giant armadillos. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-11-26T17:34:53Z 2018-11-26T17:34:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/10420940.2016.1223654 Ichnos-an International Journal For Plant And Animal Traces. Philadelphia: Taylor & Francis Inc, v. 24, n. 2, p. 133-145, 2017. 1042-0940 http://hdl.handle.net/11449/162902 10.1080/10420940.2016.1223654 WOS:000403834800004 WOS000403834800004.pdf |
url |
http://dx.doi.org/10.1080/10420940.2016.1223654 http://hdl.handle.net/11449/162902 |
identifier_str_mv |
Ichnos-an International Journal For Plant And Animal Traces. Philadelphia: Taylor & Francis Inc, v. 24, n. 2, p. 133-145, 2017. 1042-0940 10.1080/10420940.2016.1223654 WOS:000403834800004 WOS000403834800004.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ichnos-an International Journal For Plant And Animal Traces 0,378 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
133-145 application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis Inc |
publisher.none.fl_str_mv |
Taylor & Francis Inc |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797790160529653760 |