globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.12.007
论文题名:
Overlapping paleoichnology, paleoecology and taphonomy: Analysis of tooth traces in a Late Pleistocene-early Holocene megafaunal assemblage of Brazil and description of a new ichnotaxon in hard substrate
作者: Araújo-Júnior H.I.D.; Barbosa F.H.D.S.; Silva L.H.M.D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 468
起始页码: 122
结束页码: 128
语种: 英语
英文关键词: Ichnology ; Machichnus ; Megafauna ; Paleoecology ; Taphonomy ; Tooth traces
英文摘要: Tooth traces are key evidence in vertebrate taphonomy, paleoecology and paleoichnology. They are product of feeding behavior of vertebrates and can also be evaluated in biostratinomic perspective. Regarding the Quaternary fossil record of vertebrates in Brazil, the taphonomic-paleoecological information of tooth traces has been underexplored. Recently, features of this sort were identified in Quaternary mammals fossils recovered from Lajedo da Escada caves, state of Rio Grande do Norte, northeastern Brazil, consisting in an opportunity to unveil taphonomic, paleoichnological and paleoecological aspects of the Quaternary megafauna. The ichnospecies Machichnus bohemicus and M. fatimae are recorded in the Late Pleistocene-early Holocene age. The latter is a new ichnospecies of Machichnus described herein. The traces M. fatimae and M. bohemicus observed in Glyptotherium sp. were generated outside the cave by an adult individual of the large-sized canid Protocyon troglodytes during event of predation. Nonetheless, M. bohemicus recognized in Eremotherium laurillardi and Smilodon populator was generated by either a juvenile individual of P. troglodytes or an adult of the small-sized canid Cerdocyon thous, in a scavenging context, outside the cave. Probably, other tooth traces previously reported to the Quaternary of Brazil (in the states of Ceará and Minas Gerais) can be assigned to Machichnus. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67955
Appears in Collections:过去全球变化的重建

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作者单位: Departamento de Estratigrafia e Paleontologia, Faculdade de Geologia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, RJ, Brazil; Programa de Pós-graduação em Geologia, Instituto de Geociências, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, 274, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, Brazil; Programa de Pós-graduação em Análise de Bacias e Faixas Móveis, Faculdade de Geologia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, RJ, Brazil

Recommended Citation:
Araújo-Júnior H.I.D.,Barbosa F.H.D.S.,Silva L.H.M.D.. Overlapping paleoichnology, paleoecology and taphonomy: Analysis of tooth traces in a Late Pleistocene-early Holocene megafaunal assemblage of Brazil and description of a new ichnotaxon in hard substrate[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,468
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