Browsing Department of Botany and Plant Pathology by Subject "Vancouver Island"

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A Lower Cretaceous (Valanginian) seed cone provides the earliest fossil record for Picea (Pinaceae)

Klymiuk, Ashley A.; Stockey, Ruth A. (Botanical Society of America, 2012-06-01)

Premise of study: Sequence analyses for Pinaceae have suggested that extant genera diverged in the late Mesozoic. While the fossil record indicates that Pinaceae was highly diverse during the Cretaceous, there are few re ...
The Seed Cone Eathiestrobus gen. nov.: Fossil Evidence for a Jurassic Origin of Pinaceae

Rothwell, Gar W.; Mapes, Gene; Stockey, Ruth A.; Hilton, Jason (Botanical Society of America, 2012-04)

Premise of the study: Pinaceae and nonpinoid species are sister groups within the conifer clade as inferred from molecular systematic comparisons of living species and therefore should have comparable geological ages. Ho ...