...Y. Coppens; J. C. Koeniguer GeoRef, Copyright 2004, American Geological Institute. 1976 Africa Akka Angamma Bahr el Ghazal Bardai Bochianga Cenozoic Chad flora floral studies Holocene indicators Kirdimi Kolinga Koro-Toro Miocene Neogene Omchi Ouadi Derdemi Ouanofou Oue...

...N. D. Vasilevskaya ABSTRACT Mesophytic floras (Late Triassic-Early Cretaceous) of the Arctic are irregularly distributed and poorly studied. The floras studied in more detail are Carnian-Norian of Spitsbergen, Rhaetian and early Lias of East Greenland, Late Jurassic of the Lena basin, and Early...

...GARY D ROSENBERG Abstract Coastal vegetation is zoned relative to the shore, with flora nearest the shore most tolerant to sea water. This geographic distribution of plants is also repeated temporally. Vegetation tolerant to sea water colonizes newly emerged coasts; as time passes, increasingly...

... Corwin type section. The present study of Cretaceous floras began in 1956 in the southern Kuk River area ( Langenheim et al ., 1960 ). In 1961 the project was continued northward to Wainwright, completing the Kuk River sequence of floral zones ( Smiley, 1966 ). There ( Fig. 1 , area 3) a sequence...

... level. A florule thus is indicative of a specific interval in a section that may contain plant-bearing beds at many levels. A “flora” is composed of one or more collections that represent a distinct vegetation type. Where similar florules occur in sequential beds through part of a continuous section...

... there. Cross-collapse of the axis at the site of the Snake River Plain probably commenced during the Oligocene because the basin was present by Miocene time. This is shown by Miocene floras from the trough that represent deciduous hardwood forest, whereas those on its flanks comprise conifer-hardwood forest...

...R. G. West; D. Gay Wilson Abstract A flora found in a clay lens in the Corton beds at Lowestoft indicates a late- or full-glacial type of environment during an interval in the deposition of the Corton beds. The interval may be related to drainage changes associated with the retreat of the North Sea...

...Christiane Caudwell Abstract Cyanophyceans, chlorophyceans, mushrooms, higher plants, decalcification phenomena, France GeoRef, Copyright 2015, American Geosciences Institute. 1968 Aquitaine Cenozoic Europe flora France paleobotany paleontology Tertiary Western Europe ...

... of section in the various study areas provide a basis for inferring regional climates and climatic trends. Marine faunal interties indicate a time span from middle Albian to probably Maestrichtian, about 45 to 50 million years. Comparisons with selected North American Mesozoic floras and floral sequences...

...Thomas Maxwell Harris; Jane A. Rest Abstract Cuticle fragments obtained by maceration of the Bathonian (Jurassic) coal, and lycopod megaspores from shale underlying the coal of the mine at Brora, northeast Scotland, are described. The assemblage exhibits affinities with that of Jurassic floras...

... collections were taken from 40 localities, and their relative stratigraphic positions were determined on the basis of superposition. The succession of florules shows a temporal change from gymnosperm-dominated vegetation in older beds to angiosperm-dominated vegetation in younger units. Five sequential floras...

... the various known very ancient 'coals'. Conclusions are drawn concerning the antiquity of the continental flora. GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO...

... specimens failed to yield sufficient microfossils for dating or correlation, and subsequent work was limited to the analysis of megalossil. Identification of leaves and other remains resulted in the discovery of one new species and the recognition of seven species previously unreported in the Hazelton flora...

... accepted ideas about these formations and their floras have been affected by severe misunderstandings. However, recent geological investigations under the auspices of The Geological Survey of Greenland have provided a sounder basis for the stratigraphic interpretations and exposed a number of mistakes, e.g...