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Science 20 May 1977:
Vol. 196. no. 4292, pp. 877 - 878
DOI: 10.1126/science.196.4292.877
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Articles

Flavonoids and Other Chemical Constituents of Fossil Miocene Zelkova (Ulmaceae)

KARL J. NIKLAS 1 and DAVID E. GIANNASI 1

1 New York Botanical Garden, Bronx, New York 10458

Organic solvent extractions of Zelkova oregoniana, a Miocene angiosperm compression fossil, indicate the chemical preservation of kaempferol, dihydrokaempferol, an n-alkane chain length range of 10 to 32 carbons, hydroxy acids, steranes, triterpenoids, and methyl pheophorbide a. This appears to be the oldest occurrence of flavonoids in fossil sediments reported.

Submitted on October 8, 1976
Revised on November 26, 1976


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Flavonoid and Other Chemical Constituents of Fossil Miocene Celtis and Ulmus (Succor Creek Flora).
D. E. Giannasi (1977)
Science 197, 765-767
   Abstract »    PDF »
Geochemistry and Thermolysis of Flavonoids.
K. J. Niklas, K. J. NIKLAS, and D. E. GIANNASI (1977)
Science 197, 767-769
   Abstract »    PDF »


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