Revision of the proteaceae macrofossil record from Patagonia, Argentina
Proteaceae are restricted to the Southern Hemisphere, and of the seven tribes of the subfamily Grevilleoideae, only three (Macadamieae, Oriteae, and Embothrieae) have living members in Argentina. Megafossil genera of Proteaceae recorded from Patagonia include Lomatia, Embothrium, Orites, and Roupala...
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ftunibueairesbd:todo:paper_00068101_v73_n3_p235_Gonzalez 2023-10-29T02:31:41+01:00 Revision of the proteaceae macrofossil record from Patagonia, Argentina Gonzalez, C.C. Gandolfo, M.A. Zamaloa, M.C. Cúneo, N.R. Wilf, P. Johnson, K.R. https://hdl.handle.net/20.500.12110/paper_00068101_v73_n3_p235_Gonzalez unknown http://hdl.handle.net/20.500.12110/paper_00068101_v73_n3_p235_Gonzalez info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Cabrera Embothrium Lomatia Orites Proteaceae Roupala JOUR ftunibueairesbd https://doi.org/20.500.12110/paper_00068101_v73_n3_p235_Gonzalez 2023-10-05T01:20:56Z Proteaceae are restricted to the Southern Hemisphere, and of the seven tribes of the subfamily Grevilleoideae, only three (Macadamieae, Oriteae, and Embothrieae) have living members in Argentina. Megafossil genera of Proteaceae recorded from Patagonia include Lomatia, Embothrium, Orites, and Roupala. In this report, we evaluate and revise fossil Argentine Proteaceae on the basis of type material and new specimens. The new collections come from the Tufolitas Laguna del Hunco (early Eocene, Chubut Province), the Ventana (middle Eocene, Río Negro Province), and the Río Nirihuau (late Oligocene-early Miocene, Río Negro Province) formations, Patagonia, Argentina. We confirm the presence of Lomatia preferruginea Berry, L. occidentalis (Berry) Frenguelli, L. patagonica Frenguelli, Roupala patagonica Durango de Cabrera et Romero, and Orites bivascularis Romero, Dibbern et Gandolfo. Fossils assigned to Embothrium precoccineum Berry and E. pregrandiflorum Berry are doubtful, and new material is necessary to confirm the presence of this genus in the fossil record of Patagonia. A putative new fossil species of Proteaceae is presented as Proteaceae gen. et sp. indet. Fossil Proteaceae are compared with modern genera, and an identification key for the fossil leaf species is presented. Doubtful historical records of Proteaceae fossils for the Antarctic Peninsula region and Patagonia are also discussed. Based on this revision, the three tribes of Proteaceae found today in Argentina were already present in Patagonia by the early Eocene, where they probably arrived via the Australia-Antarctica- South America connection. © 2007 The New York Botanical Garden. Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
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 |
Cabrera Embothrium Lomatia Orites Proteaceae Roupala |
spellingShingle |
Cabrera Embothrium Lomatia Orites Proteaceae Roupala Gonzalez, C.C. Gandolfo, M.A. Zamaloa, M.C. Cúneo, N.R. Wilf, P. Johnson, K.R. Revision of the proteaceae macrofossil record from Patagonia, Argentina |
topic_facet |
Cabrera Embothrium Lomatia Orites Proteaceae Roupala |
description |
Proteaceae are restricted to the Southern Hemisphere, and of the seven tribes of the subfamily Grevilleoideae, only three (Macadamieae, Oriteae, and Embothrieae) have living members in Argentina. Megafossil genera of Proteaceae recorded from Patagonia include Lomatia, Embothrium, Orites, and Roupala. In this report, we evaluate and revise fossil Argentine Proteaceae on the basis of type material and new specimens. The new collections come from the Tufolitas Laguna del Hunco (early Eocene, Chubut Province), the Ventana (middle Eocene, Río Negro Province), and the Río Nirihuau (late Oligocene-early Miocene, Río Negro Province) formations, Patagonia, Argentina. We confirm the presence of Lomatia preferruginea Berry, L. occidentalis (Berry) Frenguelli, L. patagonica Frenguelli, Roupala patagonica Durango de Cabrera et Romero, and Orites bivascularis Romero, Dibbern et Gandolfo. Fossils assigned to Embothrium precoccineum Berry and E. pregrandiflorum Berry are doubtful, and new material is necessary to confirm the presence of this genus in the fossil record of Patagonia. A putative new fossil species of Proteaceae is presented as Proteaceae gen. et sp. indet. Fossil Proteaceae are compared with modern genera, and an identification key for the fossil leaf species is presented. Doubtful historical records of Proteaceae fossils for the Antarctic Peninsula region and Patagonia are also discussed. Based on this revision, the three tribes of Proteaceae found today in Argentina were already present in Patagonia by the early Eocene, where they probably arrived via the Australia-Antarctica- South America connection. © 2007 The New York Botanical Garden. |
format |
Journal/Newspaper |
author |
Gonzalez, C.C. Gandolfo, M.A. Zamaloa, M.C. Cúneo, N.R. Wilf, P. Johnson, K.R. |
author_facet |
Gonzalez, C.C. Gandolfo, M.A. Zamaloa, M.C. Cúneo, N.R. Wilf, P. Johnson, K.R. |
author_sort |
Gonzalez, C.C. |
title |
Revision of the proteaceae macrofossil record from Patagonia, Argentina |
title_short |
Revision of the proteaceae macrofossil record from Patagonia, Argentina |
title_full |
Revision of the proteaceae macrofossil record from Patagonia, Argentina |
title_fullStr |
Revision of the proteaceae macrofossil record from Patagonia, Argentina |
title_full_unstemmed |
Revision of the proteaceae macrofossil record from Patagonia, Argentina |
title_sort |
revision of the proteaceae macrofossil record from patagonia, argentina |
url |
https://hdl.handle.net/20.500.12110/paper_00068101_v73_n3_p235_Gonzalez |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_relation |
http://hdl.handle.net/20.500.12110/paper_00068101_v73_n3_p235_Gonzalez |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
op_doi |
https://doi.org/20.500.12110/paper_00068101_v73_n3_p235_Gonzalez |
_version_ |
1781052414351114240 |