First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas

Late Pleistocene outcrops exposed in Buenos Aires province, Argentina, represent one of the most informative sources for paleoecological studies on South American fauna and flora. Several proxies have been used for studying Pleistocene environmental conditions in the Pampas, but only a few were base...

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Detalles Bibliográficos
Publicado: 2016
Materias:
Argentina.
Epipedonota cristallisata
Fossil Tenebrionidae
Late Pleistocene
Luján Formation
Nyctelia picipes
Scotobius pilularius
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034541_v66_n4_p643_Ramirez
http://hdl.handle.net/20.500.12110/paper_00034541_v66_n4_p643_Ramirez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00034541_v66_n4_p643_Ramirez
record_format dspace
spelling paper:paper_00034541_v66_n4_p643_Ramirez2023-06-08T14:24:26Z First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas Argentina. Epipedonota cristallisata Fossil Tenebrionidae Late Pleistocene Luján Formation Nyctelia picipes Scotobius pilularius Late Pleistocene outcrops exposed in Buenos Aires province, Argentina, represent one of the most informative sources for paleoecological studies on South American fauna and flora. Several proxies have been used for studying Pleistocene environmental conditions in the Pampas, but only a few were based on paleoentomological data. The aims of this study are to present the first record of three species of darkling beetles from the late Pleistocene of Buenos Aires province and to provide new paleoenvironmental information. The sediments containing fossil insects correspond to the Guerrero Member of the Luján Formation and were dated between 12,100 ± 100 14C BP and 13,400 ± 200 14C BP. Specimens of Nyctelia picipes (Billberg), Epipedonota cristallisata Waterhouse and Scotobius pilularius Germar were identified. To provide information about past climate, the particular climate requirements of these species were analyzed by using the Mutual Climatic Range method. This association could indicate the first pulse of post-glacial climate recovery and the replacement by the insect fauna currently inhabiting the area. This study is one of the first approaches to the Quaternary paleoentomology of Argentina, and highlights the potential of paleoentomological information, when evaluated in combination with previous knowledge on global climate conditions after the last glacial maximum. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034541_v66_n4_p643_Ramirez http://hdl.handle.net/20.500.12110/paper_00034541_v66_n4_p643_Ramirez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina.
Epipedonota cristallisata
Fossil Tenebrionidae
Late Pleistocene
Luján Formation
Nyctelia picipes
Scotobius pilularius
spellingShingle Argentina.
Epipedonota cristallisata
Fossil Tenebrionidae
Late Pleistocene
Luján Formation
Nyctelia picipes
Scotobius pilularius
First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas
topic_facet Argentina.
Epipedonota cristallisata
Fossil Tenebrionidae
Late Pleistocene
Luján Formation
Nyctelia picipes
Scotobius pilularius
description Late Pleistocene outcrops exposed in Buenos Aires province, Argentina, represent one of the most informative sources for paleoecological studies on South American fauna and flora. Several proxies have been used for studying Pleistocene environmental conditions in the Pampas, but only a few were based on paleoentomological data. The aims of this study are to present the first record of three species of darkling beetles from the late Pleistocene of Buenos Aires province and to provide new paleoenvironmental information. The sediments containing fossil insects correspond to the Guerrero Member of the Luján Formation and were dated between 12,100 ± 100 14C BP and 13,400 ± 200 14C BP. Specimens of Nyctelia picipes (Billberg), Epipedonota cristallisata Waterhouse and Scotobius pilularius Germar were identified. To provide information about past climate, the particular climate requirements of these species were analyzed by using the Mutual Climatic Range method. This association could indicate the first pulse of post-glacial climate recovery and the replacement by the insect fauna currently inhabiting the area. This study is one of the first approaches to the Quaternary paleoentomology of Argentina, and highlights the potential of paleoentomological information, when evaluated in combination with previous knowledge on global climate conditions after the last glacial maximum.
title First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas
title_short First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas
title_full First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas
title_fullStr First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas
title_full_unstemmed First Fossil Assemblage of Darkling Beetles (Coleoptera: Tenebrionidae) from Buenos Aires, Argentina: Evidence of Dry Climate during the Late Pleistocene in the Humid Pampas
title_sort first fossil assemblage of darkling beetles (coleoptera: tenebrionidae) from buenos aires, argentina: evidence of dry climate during the late pleistocene in the humid pampas
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034541_v66_n4_p643_Ramirez
http://hdl.handle.net/20.500.12110/paper_00034541_v66_n4_p643_Ramirez
_version_ 1768543255732944896

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