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Filtering by: Academic Affiliation Botany and Plant Pathology Creator Rothwell, Gar W. Decade 2010-2019 Date 2013 Rights Statement Copyright Not Evaluated

Diversity of ancient conifers: The jurassic seed cone bancroftiastrobus digitata gen. et sp. nov. (coniferales)

Creator:

Rothwell, Gar W., Mapes, Gene, Stockey, Ruth A., and Hilton, Jason

Abstract:

Premise of research. A third genus of anatomically preserved conifer seed cones has been recognized from a Late Jurassic deposit in northeastern Scotland. This cone is described as Bancroftiastrobus digitata Rothwell, Mapes, Stockey et Hilton. Methodology. The cone was sectioned with the classic coal ball peel technique and studied and...

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Article
Evolution and Phylogeny of Gnetophytes: Evidence From the Anatomically Preserved Seed Cone Protoephedrites Eamesii gen. et sp nov. and the Seeds of Several Bennettitalean Species

Creator:

Rothwell, Gar W. and Stockey, Ruth A.

Abstract:

A fossil seed cone with characters that have been hypothesized as transitional to the origin of crown group gnetophytes has been discovered in Lower Cretaceous deposits on Vancouver Island, British Columbia, Canada. This cone, described as Protoephedrites eamesii gen. et sp. nov., provides the first anatomically preserved fossil evidence for...

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Article
Pararaucaria carrii sp nov., anatomically preserved evidence for the conifer family cheirolepidiaceae in the northern hemisphere

Creator:

Stockey, Ruth A. and Rothwell, Gar W.

Abstract:

A cylindrical permineralized conifer seed cone has been identified from the Officer Member of the Trowbridge Formation, near Izee, in east-central Oregon. The cone is preserved in a Middle Jurassic (Callovian) marine calcium carbonate concretion, associated with araucarian seed cones, conifer twigs and wood, cycad seeds, fern rachides, and lycopodialean...

Resource Type:

Article

ScholarsArchive@OSU

Diversity of ancient conifers: The jurassic seed cone bancroftiastrobus digitata gen. et sp. nov. (coniferales)

Evolution and Phylogeny of Gnetophytes: Evidence From the Anatomically Preserved Seed Cone Protoephedrites Eamesii gen. et sp nov. and the Seeds of Several Bennettitalean Species

Pararaucaria carrii sp nov., anatomically preserved evidence for the conifer family cheirolepidiaceae in the northern hemisphere

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