Pseudosporchnus in the Middle Devonian of New York State |
Contents
Methods and Katerials | 11 |
Locality and Stratigraphy | 15 |
Description | 18 |
4 other sections not shown
Common terms and phrases
addition anatomy appear appendages approximately Arrow attachment axes axis Banks base bear bore Calamophyton carbonized cells central characteristic Cladoxylales closely cm long collected completely considered container correlation cortex crown described Devonian floras dichotomies discussed divided evident extended external ferns fertile fertile fronds Figure flattened Formation fossil fragments frond genus Geol Gilboa Goldring Hamilton Group higher included indicates isolated Krausel and Weyland Krejcii lateral leaf leaves Leclercq length longitudinal lower material matrix Middle Devonian nature noted occurs original outer partially exposed pattern peripheral loops pinnae plant PLATE polystelic portion position possible present preserved produced Pseudosporochnus Pseudosporochnus nodosus psilophytes Quarry rachis region remains removed reported represent result rock sclereids second order branches seen separate similar species specimen sporangia steles stem sterile structure Stur suggests surface terminal tips tracheids Transverse section tree ultimate verticillatus wide xylem xylem arms York