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Timing of Early Cretaceous angiosperm diversification and possible links to major paleoenvironmental change

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • U. Heimhofer
  • P. A. Hochuli
  • S. Burla
  • J. M.L. Dinis

Externe Organisationen

  • ETH Zürich
  • University of Oxford
  • Universität Zürich (UZH)
  • University of Coimbra
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Details

OriginalspracheEnglisch
Seiten (von - bis)141-144
Seitenumfang4
FachzeitschriftGEOLOGY
Jahrgang33
Ausgabenummer2
PublikationsstatusVeröffentlicht - Feb. 2005
Extern publiziertJa

Abstract

Palynological records from the Western Portuguese and Algarve basins (Portugal) provide new insights on the timing and pattern of the early diversification of angiosperms (flowering plants) and its relationship to global environmental perturbations during the late Early Cretaceous. Angiosperm pollen displays a stepwise increase in both diversity and relative abundance during the late Barremian to middle Albian interval (ca. 124-104 Ma), reflecting the incipient radiation of flowering plants in lower midlatitude floras. Our results provide new evidence for the age interpretation of the previously described angiosperm mesofossil floras and associated in situ pollen assemblages from the Western Portuguese basin, until now interpreted as Barremian or possibly Aptian in age. Biostratigraphic and sedimentologic evidence indicates a post-Aptian age for these assemblages, hence demonstrating a major radiation phase of angiosperms during the early Albian. Correlation of the angiosperm pollen record with data on global paleoenvironmental changes suggests a link between the rapid adaptive radiation of flowering plants and major climatic and oceanographic perturbations during the late Early Cretaceous.

ASJC Scopus Sachgebiete

  • Erdkunde und Planetologie (insg.)
  • Geologie

Zitieren

Timing of Early Cretaceous angiosperm diversification and possible links to major paleoenvironmental change. / Heimhofer, U.; Hochuli, P. A.; Burla, S. et al.
in: GEOLOGY, Jahrgang 33, Nr. 2, 02.2005, S. 141-144.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Heimhofer U, Hochuli PA, Burla S, Dinis JML, Weissert H. Timing of Early Cretaceous angiosperm diversification and possible links to major paleoenvironmental change. GEOLOGY. 2005 Feb;33(2):141-144. doi: 10.1130/G21053.1
Heimhofer, U. ; Hochuli, P. A. ; Burla, S. et al. / Timing of Early Cretaceous angiosperm diversification and possible links to major paleoenvironmental change. in: GEOLOGY. 2005 ; Jahrgang 33, Nr. 2. S. 141-144.
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abstract = "Palynological records from the Western Portuguese and Algarve basins (Portugal) provide new insights on the timing and pattern of the early diversification of angiosperms (flowering plants) and its relationship to global environmental perturbations during the late Early Cretaceous. Angiosperm pollen displays a stepwise increase in both diversity and relative abundance during the late Barremian to middle Albian interval (ca. 124-104 Ma), reflecting the incipient radiation of flowering plants in lower midlatitude floras. Our results provide new evidence for the age interpretation of the previously described angiosperm mesofossil floras and associated in situ pollen assemblages from the Western Portuguese basin, until now interpreted as Barremian or possibly Aptian in age. Biostratigraphic and sedimentologic evidence indicates a post-Aptian age for these assemblages, hence demonstrating a major radiation phase of angiosperms during the early Albian. Correlation of the angiosperm pollen record with data on global paleoenvironmental changes suggests a link between the rapid adaptive radiation of flowering plants and major climatic and oceanographic perturbations during the late Early Cretaceous.",
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Download

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T1 - Timing of Early Cretaceous angiosperm diversification and possible links to major paleoenvironmental change

AU - Heimhofer, U.

AU - Hochuli, P. A.

AU - Burla, S.

AU - Dinis, J. M.L.

AU - Weissert, H.

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AB - Palynological records from the Western Portuguese and Algarve basins (Portugal) provide new insights on the timing and pattern of the early diversification of angiosperms (flowering plants) and its relationship to global environmental perturbations during the late Early Cretaceous. Angiosperm pollen displays a stepwise increase in both diversity and relative abundance during the late Barremian to middle Albian interval (ca. 124-104 Ma), reflecting the incipient radiation of flowering plants in lower midlatitude floras. Our results provide new evidence for the age interpretation of the previously described angiosperm mesofossil floras and associated in situ pollen assemblages from the Western Portuguese basin, until now interpreted as Barremian or possibly Aptian in age. Biostratigraphic and sedimentologic evidence indicates a post-Aptian age for these assemblages, hence demonstrating a major radiation phase of angiosperms during the early Albian. Correlation of the angiosperm pollen record with data on global paleoenvironmental changes suggests a link between the rapid adaptive radiation of flowering plants and major climatic and oceanographic perturbations during the late Early Cretaceous.

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