Taxonomy, evolution, and stratigraphic value of Azolla and Azollopsis in the upper Cretaceous and early Tertiary

Date
1972
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Abstract
Description
Bibliography: p. 335-340.
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Citation
Sweet, A. R. (1972). Taxonomy, evolution, and stratigraphic value of Azolla and Azollopsis in the upper Cretaceous and early Tertiary (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/17744
URI
http://hdl.handle.net/1880/15032
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