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Types of Preservation and Methods of Study
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Acer maple acuminate acute algae angiosperms apex apices attached bases Fig branches Calamites Canyon Shale Carboniferous close-up Coniferophyta conifers cont'd Creek flora Cretaceous Cretaceous floras Cross section Cycadophyta cycads decurrent Eocene Equisetum fernlike foliage ferns fertile pinnules Ficus Figure Formation forms fossil fossil plants fossil wood frond fruits fungi genera genus Ginkgo Green River Growth rings gymnosperms indusium Juglans Jurassic lanceolate leaf bases leaflets leaves Lepidodendron living cycads lobes margins Metasequoia midvein Miocene needles occur Oregon ovate Paleocene palmately parenchyma perforation plates petiole phloem pinnae pinnules Pinus pine pith pits Platanus rachis radial rays reported resin canals rounded Sabalites scars secondary veins seed ferns seeds Sequoia redwood serrate shaped cuneate slender species Specimens Sphenopteris sporangia spores stem structure Sucker Creek Tangential section Tempskya Tertiary floras tracheids tree Triassic tyloses uniseriate Upper Cretaceous Utah veinlets venation vessels wedge shaped western United wings Wood parenchyma Wyoming xylem Zamites