Morphology and Anatomy of Aneurophyton, a Progymnosperm from the Upper Devonian of New York |
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Amer anatomy Aneurophyton germanicum appears arrow attached atypical axes Banks bears bifurcate Bioplastic Bonamo borne cells central stalk coaly matter composed consists Delaware River Formation demonstrated deposited described Devonian diameter dichotomize Enlargement Eosperma topteris erianus extends fertile Figure foliage followed four frond fructification genera genus Gilboa Goldring Goldring's illustrated indicate known Kräusel and Weyland Leclercq length located lower lyre-shaped margin material matrix N+2 axis nature needle obtained orders of branching original partially pattern penultimate appendage penultimate branches placed plane plant PLATE Pond Eddy portion present preserved primary xylem protostele protoxylem strands pyrite rays Rellimia remains removed reported result rock secondary xylem shown side solution species specimens spirally arranged sporangia structure suggested surface terminally Tetraxylopteris Textfig textilis three-lobed tips trace tracheids transfer transverse section Triloboxylon trunks Type ultimate appendages uncovering Upper Devonian wire York