Search Results - "Stockey, Ruth A."

Phylogenetic diversification of Early Cretaceous seed plants: The compound seed cone of Doylea tetrahedrasperma by Rothwell, Gar W., Stockey, Ruth A.

“…PREMISE OF THE STUDY: Discovery of cupulate ovules of Doylea tetrahedrasperma within a compact, compound seed cone highlights the rich diversity of…”
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Resolving the overall pattern of marattialean fern phylogeny by Rothwell, Gar W., Millay, Michael A., Stockey, Ruth A.

“…Premise of the Study Recent clarification of the distribution of Marattiales through time provides the impetus for “total evidence” phylogenetic analyses of a…”
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Anatomically preserved fossil cornalean fruits from the Upper Cretaceous of Hokkaido: Eydeia hokkaidoensis gen. et sp. nov by Stockey, Ruth A., Nishida, Harufumi, Atkinson, Brian A.

“…PREMISE OF THE STUDY: The basal asterid clade Cornales radiated during the Late Cretaceous. However, our understanding of early evolutionary patterns and…”
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A Lower Cretaceous (Valanginian) seed cone provides the earliest fossil record for Picea (Pinaceae) by Klymiuk, Ashley A., Stockey, Ruth A.

“…Premise of study: Sequence analyses for Pinaceae have suggested that extant genera diverged in the late Mesozoic. While the fossil record indicates that…”
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Evolutionary diversification of taiwanioid conifers: evidence from a new Upper Cretaceous seed cone from Hokkaido, Japan by Stockey, Ruth A., Nishida, Harufumi, Rothwell, Gar W.

“…A single cylindrical seed cone 2 cm long, 1.1 cm wide has been found preserved in a calcium carbonate marine concretion from the Hakobuchi Formation (late…”
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Hughmillerites vancouverensis sp. nov. and the Cretaceous diversification of Cupressaceae by Atkinson, Brian A., Rothwell, Gar W., Stockey, Ruth A.

“…• Premise of the study: Two ovulate conifer cones, one of which is attached terminally to a short leafy shoot, reveal the presence of a new species of…”
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Is the anthophyte hypothesis alive and well? New evidence from the reproductive structures of Bennettitales by Rothwell, Gar W, Crepet, William L, Stockey, Ruth A

“…Bennettitales is an extinct group of seed plants with reproductive structures that are similar in some respects to both Gnetales and angiosperms, but…”
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Cretaceous origin of dogwoods: an anatomically preserved Cornus (Cornaceae) fruit from the Campanian of Vancouver Island by Atkinson, Brian A, Stockey, Ruth A, Rothwell, Gar W

“…Cornaceae consists of 58 species, all within the genus . The Cenozoic record of is extensive and well documented. Molecular divergence-time studies suggest…”
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Seed cone anatomy of Cheirolepidiaceae (Coniferales): Reinterpreting Pararaucaria patagonica Wieland by Escapa, Ignacio H., Rothwell, Gar W., Stockey, Ruth A., Cúneo, N. Rubén

“…Premise of the study: Seed cone morphology and anatomy reflect some of the most important changes in the phylogeny and evolutionary biology of conifers…”
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A new species of Pityostrobus (Pinaceae) from the Cretaceous of California: moving towards understanding the Cretaceous radiation of Pinaceae by Smith, Selena Y., Stockey, Ruth A., Rothwell, Gar W., Little, Stefan A.

“…The evolutionary history of Pinaceae is documented by numerous fossils, which include a number of anatomically preserved ovulate cones with many systematically…”
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Structure and relationships of the Jurassic conifer seed cone Hughmillerites juddii gen. et comb. nov.: Implications for the origin and evolution of Cupressaceae by Rothwell, Gar W., Stockey, Ruth A., Mapes, Gene, Hilton, Jason

“…Anatomically preserved Jurassic conifer seed cones originally described as Conites juddi Seward and Bancroft are reinvestigated and assigned to Hughmillerites…”
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Reconsidering Relationships among Stem and Crown Group Pinaceae: Oldest Record of the Genus Pinus from the Early Cretaceous of Yorkshire, United Kingdom by Ryberg, Patricia E., Rothwell, Gar W., Stockey, Ruth A., Hilton, Jason, Mapes, Gene, Riding, James B.

“…This study describes a specimen that extends the oldest fossil evidence of Pinus L. to the Early Cretaceous Wealden Formation of Yorkshire, UK (131-129 million…”
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Distinguishing angiophytes from the earliest angiosperms: A Lower Cretaceous (Valanginian-Hauterivian) fruit-like reproductive structure by Stockey, Ruth A, Rothwell, Gar W

“…A remarkably diverse Lower Cretaceous (Valanginian-Hauterivian) flora at Apple Bay, Vancouver Island, preserves seed plants at an important time of floristic…”
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A Perithecial Sordariomycete (Ascomycota, Diaporthales) from the Lower Cretaceous of Vancouver Island, British Columbia, Canada by Bronson, Allison W., Klymiuk, Ashley A., Stockey, Ruth A., Tomescu, Alexandru M. F.

“…A perithecial ascomycete,Spataporthe taylorigen. et sp. nov., represented by >70 sporocarps is preserved by cellular permineralization in marine carbonate…”
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Fossil evidence for sporeling development of a Mesozoic osmundaceous fern by Walker, Zane, Rothwell, Gar W., Stockey, Ruth A.

“…Premise An anatomically preserved fossil fern sporeling has been discovered in a Lower Cretaceous marine concretion from Vancouver Island, British Columbia,…”
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Permineralized Fagus nuts from the Eocene of Vancouver Island, Canada by Mindell, Randal A, Stockey, Ruth A, Beard, Graham

“…Sixty trigonal fagaceous fruits have been identified in the calcareous nodules from the Eocene Appian Way locality of Vancouver Island, British Columbia,…”
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Reconstructing Emporia lockardii (Voltziales: Emporiaceae) and initial thoughts on Paleozoic conifer ecology by Hernandez-Castillo, Genaro R, Stockey, Ruth A, Rothwell, Gar W, Mapes, Gene

“…A new plant concept for the extinct conifer species Emporia lockardii (Mapes & Rothwell) Mapes & Rothwell (Emporiaceae) is developed from fossils collected at…”
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A novel cupulate seed plant, Xadzigacalix quatsinoensis gen. et sp. nov., provides new insight into the Mesozoic radiation of gymnosperms by Klymiuk, Ashley A., Rothwell, Gar W., Stockey, Ruth A.

“…Premise Anatomically preserved evidence for a novel clade of gymnosperms emphasizes diversity of seed plants immediately prior to the appearance of angiosperm…”
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Paleoecological and phylogenetic implications of Saxicaulis meckertii gen. et sp. nov.: a bennettitalean stem from the Upper Cretaceous of western North America by Jud, Nathan A, Rothwell, Gar W, Stockey, Ruth A

“…A new anatomically preserved bennettitalean stem has been recovered from the Upper Cretaceous (Coniacian) Eden Main locality on Vancouver Island, British…”
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new Voltzialean conifer Emporia royalii sp. nov. (Emporiaceae) from the Hamilton Quarry, Kansas by Hernandez-Castillo, Genaro R, Stockey, Ruth A, Mapes, Gene, Rothwell, Gar W

“…A new species of extinct conifer plants, Emporia royalii sp. nov. Hernandez-Castillo, Stockey, Mapes et Rothwell (Emporiaceae: Voltziales), is described from…”
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