The Geological History of PlantsD. Appleton & Company, 1892 - 294 pagini |
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Pagina
... COAL PAGE 1 8 45 • 110 CHAPTER V. THE FLORA OF THE EARLY MESOZOIC - REIGN OF PINES AND CYCADS . 175 CHAPTER VI . THE REIGN OF ANGIOSPERMS IN THE LATER CRETACEOUS AND EARLY TERTIARY OR KAINOZOIC . . 191 CHAPTER VII . PLANTS FROM THE ...
... COAL PAGE 1 8 45 • 110 CHAPTER V. THE FLORA OF THE EARLY MESOZOIC - REIGN OF PINES AND CYCADS . 175 CHAPTER VI . THE REIGN OF ANGIOSPERMS IN THE LATER CRETACEOUS AND EARLY TERTIARY OR KAINOZOIC . . 191 CHAPTER VII . PLANTS FROM THE ...
Pagina
... Megalopteris Calamites Asterophyllites Dadoxylon • • 21 22 , 23 28 28 • 29 · 30 • 31 . · 33 34 36 • 37 · 40 49 · • 54 62 , 63 64 , 66 • 65 66 72 , 73 • 74 75 · 76 77 78 79 Cordaites Erian Fruits • Foliage from the Coal - formation.
... Megalopteris Calamites Asterophyllites Dadoxylon • • 21 22 , 23 28 28 • 29 · 30 • 31 . · 33 34 36 • 37 · 40 49 · • 54 62 , 63 64 , 66 • 65 66 72 , 73 • 74 75 · 76 77 78 79 Cordaites Erian Fruits • Foliage from the Coal - formation.
Pagina
... Coal - formation ( six Figures ) 126-129 Noeggerathia dispar 130 Cordaites . 131 Sternbergia Fruits of Cordaites , & c . Conifers of the Coal - formation ( four Species ) Trigonocarpum Walchia imbricatula Foliage of the Jurassic Period ...
... Coal - formation ( six Figures ) 126-129 Noeggerathia dispar 130 Cordaites . 131 Sternbergia Fruits of Cordaites , & c . Conifers of the Coal - formation ( four Species ) Trigonocarpum Walchia imbricatula Foliage of the Jurassic Period ...
Pagina 9
... coal and bituminous matter , and we know that these have arisen from the accumulation and slow putrefaction of masses of vegetable matter . Further , in places where igneous action has affected the beds , we find that ordinary coal has ...
... coal and bituminous matter , and we know that these have arisen from the accumulation and slow putrefaction of masses of vegetable matter . Further , in places where igneous action has affected the beds , we find that ordinary coal has ...
Pagina 11
... coal ; and a block from this bed , about four feet thick , was a prominent object in the Canadian department of the Colonial Exhibition of 1886 . When it is considered that graphite occurs in similar abundance at several other horizons ...
... coal ; and a block from this bed , about four feet thick , was a prominent object in the Canadian department of the Colonial Exhibition of 1886 . When it is considered that graphite occurs in similar abundance at several other horizons ...
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Termeni și expresii frecvente
abundant Acrogens aërial roots Algæ allied America animal appear arctic areoles bark beds belong bituminous branches Brongniart Calamites Canada carbon Carboniferous Caulopteris cellular character clay climate coal coal-formation conifers Cordaites cycads Dadoxylon Dawson deposits described Devonian diameter dicotyledonous Eocene Europe exogenous fact ferns flora formation forms fossil fossil plants fronds fructification fruit Gaspé genera genus Geological Society graphite Greenland gymnospermous Heer hemisphere Journal known land land-plants Laramie Laurentian leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores matter medullary rays Mesozoic Miocene modern Nematophyton northern Nova Scotia occur outer Palæozoic period Permian pines pinnules pith present preserved probably Prof Psilophyton referred remarkable resemble Rhizocarps rocks sandstones scalariform scars Sequoia shales Sigillaria Silurian similar species specimens Sphenophyllum Sporangites spore-cases spores sporocarps stems Sternbergia structure surface Tertiary thick tion tissue tree-ferns trees trunks types Upper Cretaceous vascular vegetable wood woody