Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Seed ferns survived the end-Cretaceous mass extinction in Tasmania.
Naturhistoriska riksmuseet, Enheten för paleobiologi.ORCID-id: 0000-0001-6723-239X
2008 (Engelska)Ingår i: American Journal of Botany, ISSN 0002-9122, E-ISSN 1537-2197, Vol. 95, nr 4, s. 465-71Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Seed ferns, dominant elements of the vegetation in many parts of the world from the Triassic to Cretaceous, were considered to have disappeared at the end of the Cretaceous together with several other groups that had occupied key positions in terrestrial and marine ecosystems such as dinosaurs, plesiosaurs, and ammonoids. Seed-fern demise is generally correlated with competition from diversifying flowering plants through the Cretaceous and the global environmental crisis related to the Chicxulub impact event in the paleotropics at the end of the period. New fossils from Tasmania show that one seed-fern lineage survived into the Cenozoic by at least 13 million years. These fossils are described here as a new species, Komlopteris cenozoicus. Komlopteris is a genus of seed ferns attributed to Corystospermaceae and until now was not known from sediments younger than the Early Cretaceous. Discovery of this "Lazarus taxon," together with the presence of a range of other relictual fossil and extant organisms in Tasmania, other southern Gondwanan provinces, and some regions of northern North America and Asia, underscores high-latitude regions as biodiversity refugia during global environmental crises and highlights their importance as sources of postextinction radiations.

Ort, förlag, år, upplaga, sidor
2008. Vol. 95, nr 4, s. 465-71
Nyckelord [en]
Australia; Corystospermaceae; Eocene; extinction; Komlopteris ; refugia; seed ferns; Tasmania
Nationell ämneskategori
Naturvetenskap
Forskningsämne
Den föränderliga jorden
Identifikatorer
URN: urn:nbn:se:nrm:diva-319DOI: 10.3732/ajb.95.4.465PubMedID: 21632371OAI: oai:DiVA.org:nrm-319DiVA, id: diva2:719381
Tillgänglig från: 2014-05-23 Skapad: 2014-05-23 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

Open Access i DiVA

Tasmanian Eocene seed fern(2009 kB)379 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 2009 kBChecksumma SHA-512
b1e46117f6a1954b7aa15bea848cb1a50799515b41a13441963aa3ea8e9e7dd84bc316d8ace027e16a74c9ee3894e3b0adaf4d4e53ba555b648e7642f7127ca3
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltextPubMed

Sök vidare i DiVA

Av författaren/redaktören
McLoughlin, Stephen
Av organisationen
Enheten för paleobiologi
I samma tidskrift
American Journal of Botany
Naturvetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 379 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 69 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf