Contributions to the Upper Devonian Flora of New York |
Contents
STRATIGRAPHIC SETTING | 3 |
AGE OF THE NEW ALBANY SHALE | 8 |
MATERIALS AND METHODS | 14 |
Copyright | |
2 other sections not shown
Common terms and phrases
Amer anatomy Aneurophyton Archaeopteris Arnold axes Banks bilobed branch systems branching pattern Callixylon Catskill Chattanooga shale circular bordered pits circular protoxylem areas Cladoxylon Clepsydropsis conodont CORNELL LIBRARY diameter elongated Eospermatopteris Figure Finger Lakes fossil Frasnian fronds genera genus Geol Guycampbellia holotype Hoskins and Cross Hueber Jour Kräusel and Weyland Lepidodendron LIBRARY UNIVERSITY lobed protostele lower Upper Devonian median band mesarch protoxylem areas metaxylem cells metaxylem elements Middle Devonian Mississippian orders of branches outer cortex parenchyma parenchyma cells peripheral loops petrifactions phloem pinnae Plate proto protoxylem areas Pteridosperm quarry rachis radially aligned Read & Campbell Reimannia Reimanniopsis scalariform secondary xylem section of axis section of stem Slide species specimen Sphenoxylon eupunctata Thomas spirally stele Steloxylon Stenokoleaceae Stenokoleos simplex Stenomyelon Tetrastichia and Tristichia Textfig Textfigure three-lobed tracheids Transverse section Triloboxylon Triloboxylon ashlandicum gen ultimate appendages UNIVERSITY CORNELL UNIVERSITY LIBRARY CORNELL vascular tissue Weyland wide xylem arm xylem strand York