Spores from the Herrin (no. 6) Coal Bed in Illinois |
Contents
History of investigation and acknowledgment | 5 |
SYSTEMATIC DESCRIPTIONS | 17 |
10 | 34 |
3 other sections not shown
Common terms and phrases
abortive forms abortive spores apex Aphanozonati apical cushion apiculi arcuate ridges aureolus Auriculati Belleville bench Bennie and Kidston bladder Bocheński Brennsteine Camera lucida characters classification coal Column 31 correlation Cystosporites breretonensis described diameter elongated endospore ferns Fertile spores figure flange fossil free-sporing gametophyte genera genus germinal exit giganteus Zerndt gymnospermic heterosporous holotype Ibrahim Illinois isolated isospores kinds of spores l'Acad Lagenicula Lepidocarpon Lepidostrobus lycopod maceration maceration residues male spores megaspores microspores Monoletes ovatus morphology ornamentation oval Paläobot Paleozoic Petrog Photo tracing Polonaise des Sci prepollen present probably proximal side pteridosperm pyramic areas radial reflected light rugose Sahabi Schopf seed megaspores Selaginellites shown in plate species specimens sporangia sporangium spore body spore coat spores illustrated Sporites sporophyte suture tetrad thick transmitted light trilete radii Trilete structures Triletes brevispiculus Triletes giganteus Triletes reinschi Triletes translucens Triletes triangulatus Triletes triangulatus Zerndt Wicher