This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
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Distinguishing angiophytes from the earliest angiosperms: A Lower Cretaceous (Valanginian-Hauterivian) fruit-like reproductive structure
Download2009
A remarkably diverse Lower Cretaceous (Valanginian-Hauterivian) fl ora at Apple Bay, Vancouver Island, preserves seed plants at an important time of fl oristic evolutionary transition, about the same time as the earliest fl owering plant megafossils. The fossils are permineralized in carbonate...
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Studies of Paleozoic Seed Ferns: Anatomy and Morphology of Morphology of Microspermopteris aphyllum.
Download1976
The discovery of numerous specimens of the monostelic pteridosperm genus Microspermop- teris in Pennsylvanian coal ball petrifactions from the Lewis Creek and What Cheer localities provides additional information about the anatomical and morphological variability within the genus. Specimens are...