The Eocene Green River Flora of Northwestern Colorado and Northeastern UtahUniversity of California Press |
Contents
Abstract | 1 |
The Fossil Flora | 19 |
Systematic List of Families and Species | 27 |
Their Characteristics and Causes | 50 |
Origin of the Fossil Flora | 57 |
Abstract 1 | 1 |
Mesozoic and Eocene Rocks 14 | 14 |
Subinal Redbeds 27 | 27 |
Dikes 58 | 58 |
Geologic Structure of Honduras 72 | 72 |
| 99 | |
Common terms and phrases
abundant andesite approximately augite basalt Basin Batrachosuchus beds biotite Blinasaurus border Bothriceps brachyopid Brachyops Carretera Cerro climate close Cockerell coloradensis Colorado Copán Cretaceous deposits Dvinosaurus early Eocene Evacuation Creek member Florissant fluviatile foramen fossil fossil flora genera genus Green River flora Green River formation groundmass Guatemala Gulf of Fonseca Hadrokkosaurus bradyi Honduras Hypotype ignimbrites indicate Kisinger Knowlton labradorite labyrinthodont lacustrine lavas leaf leaflets Leguminosites length Lesquereux limestones Linné locality Lomatia MacGinitie mafic margin Matagalpa mesh Middle Eocene midrib Miocene Nicaragua olivine orbits Parachute Creek member percent phenocrysts plants Platanus plutonic rocks pollen Populus posterior postparietal pterygoid quartz Quaternary Quercus redbeds Rhus rhyolite Rhyolite ignimbrite Río Roan Plateau sanidine secondaries sediments shales skull specimen stratigraphic Subinal Survey Prof Tegucigalpa temperature Tertiary texture Triassic tropical tuff U. S. Geol Uinta Lake Utah Valle de Angeles venation Wardell Ranch loc watsoni Wind River Wyoming Zelkova