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The Araucariaceae: An evolutionary perspective
- R. Stockey
- 1 July 1982
Well-preserved Bunya section cones from Europe, South America and India suggest that this section was widespread in both hemispheres during the Jurassic, and that the section Bunya be retained in current taxonomic schemes even though it contains only one extant species. Expand
The fossil monocot Limnobiophyllum scutatum: resolving the phylogeny of Lemnaceae.
Results of the analysis indicate that the Lemnaceae plus Pistia form a monophyletic group within the Araceae, and relationships among taxa of the Lemmaceae, Pistia, and selected genera of Araceae are resolved. Expand
Mesozoic Araucariaceae: Morphology and systematic relationships
- R. Stockey
- Journal of Plant Research
- 1 December 1994
Evidence that fossil araucarian cones may have produced seeds with hypogeal germination is discussed in light of recent work on germination of extant bunya seedlings and the discovery of new fossil shoots from the Jurassic Morrison Formation of Utah. Expand
Fossil ectomycorrhizae from the Middle Eocene.
- B. Lepage, R. Currah, R. Stockey, G. Rothwell
- Biology, Medicine
- American journal of botany
- 1 March 1997
These exquisitely preserved specimens represent the first unequivocal occurrence of fossil ectomycorrhizae and demonstrate that such associations were well-established at least 50 million years ago. Expand
The role of Hydropteris pinnata gen. et sp. nov. in reconstructing the cladistics of heterosporous ferns
Todea from the Lower Cretaceous of western North America: implications for the phylogeny, systematics, and evolution of modern Osmundaceae.
Fossil evidence confirms that Osmundaceae originated in the Southern Hemisphere during the Permian, underwent rapid diversification, and species extended around the world during the Triassic, and that the genus Todea evolved by the Lower Cretaceous. Expand
Phylogenetic diversification of Early Cretaceous seed plants: The compound seed cone of Doylea tetrahedrasperma.
The unique combination of characters shown by D. tetrahedrasperma includes the presence of cupulate seeds borne in conifer-like compound seed cones, an ovuliferous scale analogue structurally equivalent to the ovulate stalk of Ginkgo biloba, gymnospermous pollination, and nearly complete enclosure of mature seeds. Expand
Insect fossils in middle Eocene deposits from British Columbia and Washington State: faunal diversity and geological range extensions
Eleven of the families identified are new records for the middle Eocene of British Columbia – Washington State, bringing the diversity of fossil insects in the region to 28 families. Expand
Structure and relationships of the Jurassic conifer seed cone Hughmillerites juddii gen. et comb. nov.: Implications for the origin and evolution of Cupressaceae
Developmental studies of living cupressaceous seed cones indicate that the range of mature morphologies is strongly correlated with differences in the timing and rate of development for the bract, scale, and ovules, thus supporting the hypothesis that heterochrony plays a major role in the evolution of bract/scale form. Expand
Is the anthophyte hypothesis alive and well? New evidence from the reproductive structures of Bennettitales.
Characters of bennettitalean plants are summarized and new evidence for the structure of cones and seeds is presented that help clarify relationships of Bennettitales to flowering plants, Gnetales, and other potential angiosperm sister groups. Expand