Transcript David Winship Taylor, Indiana University Southeast, New Albany IN. Preliminary analysis of a suite of living flowering plants, that were treated to.

David Winship Taylor, Indiana University Southeast, New Albany IN.
Preliminary analysis of a suite of living flowering
plants, that were treated to mimic burial and
preservation, are found to have oleanane or desA-oleanane that have previously been suggested
to be biomarkers for angiosperms. We also
examined resin bearing basal angiosperms for
bicadinanes. Bicadinanes are known from
dimerization and diagenesis of sesquiterpenoids
in resinites from the derived angiosperm
Dipterocarpaceae. Although we confirm the
presence in Hopea a genus from
Dipterocarpaceae, basal angiosperms do not
seem to be a direct source for bicadinanes. This
supporting previous work showing low
correlation to oleanane source rock occurrence,
and suggesting they are usually the result of
diagenesis and restructuring of existing
sesquiterpenoid.
Bicadinane geological distribution
Barbanti and Moldowan , unpublished
Our data show that treated extracts from
resinous basal angiosperm do not for
bicadinanes, suggesting that it is not a
biomarker for angiosperms.