Early angiosperm diversification: evidence from southern South America

被引：73

作者：

Archangelsky, Sergio ^{[1
]}

Barreda, Viviana ^{[1
]}

Passalia, Mauro G. ^{[2
]}

Gandolfo, Maria ^{[3
]}

Pramparo, Mercedes ^{[4
]}

Romero, Edgardo ^{[1
]}

Cuneo, Ruben ^{[5
]}

Zamuner, Alba ^{[6
,7
]}

Iglesias, Ari ^{[6
,7
]}

Llorens, Magdalena ^{[8
]}

Puebla, Gabriela G. ^{[4
]}

Quattrocchio, Mirta ^{[9
]}

Volkheimer, Wolfgang ^{[4
]}

机构：

[1] Consejo Nacl Invest Cient & Tecn, Museo Argentino Ciencias Nat B Rivadavia, Div Paleobot, RA-1033 Buenos Aires, DF, Argentina

[2] UNCo, CONICET, Inst Invest Biodiversidad & Medioambiente, San Carlos De Bariloche, Rio Negro, Argentina

[3] Cornell Univ, Dept Plant Biol, LH Bailey Hortorium, Ithaca, NY 14853 USA

[4] Consejo Nacl Invest Cient & Tecn, IANIGLA CCT, Mendoza, Argentina

[5] Museo Paleontol Egidio Feruglio, Trelew, Chubut, Argentina

[6] Fac Ciencias Nat, Div Paleobot, La Plata, Argentina

[7] Museo La Plata, La Plata, Argentina

[8] CNEA Reg Patagonia, Trelew, Argentina

[9] Univ Sur, Dept Geol, Bahia Blanca, Buenos Aires, Argentina

来源：

CRETACEOUS RESEARCH | 2009年 / 30卷 / 05期

关键词：

Cretaceous; Angiosperm evolution; Eudicots; Southern South America; SAN-JORGE BASIN; KACHAIKE FORMATION; POLLEN; LEAVES; PATAGONIA; EVOLUTION; ULTRASTRUCTURE; PALEOECOLOGY; PALYNOFLORAS; DIVERSITY;

D O I：

10.1016/j.cretres.2009.03.001

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

In this report, we analyze the angiosperm fossil record (micro- and megafossil) from the central and southern basins of Argentina, southern South America, deposited between the late Barremian (128.3 Ma) to the end of the Coniacian (85.8 Ma). Based on this analysis, three major stages in the evolution of the angiosperms in the southernmost region of South America are established as follows: the late Barremian-Aptian, the latest Aptian-earliest Albian, and the middle Albian- Coniacian. The comparison between our fossil data set and those from Australia, North America, Asia and Europe suggest that the evolution and diversification of the angiosperms at mid and high latitudes in both hemispheres occurred roughly synchronously. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1073 / 1082

页数：10

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