Armoricaphyton
Armoricaphyton is an extinct monospecific genus of vascular land plants described from Early Devonian (late Pragian-earliest Emsian) outcrops of the Chalonnes Formation in western France. The plant consists of small, leafless, longitudinally-ribbed axes that branch pseudomonopodially. Pairs of fusiform-shaped, twisted sporangia preserved as adpressions were found in association with the axes and may belong to this species. Permineralized specimens reveal the oldest documented wood or secondary xylem of any known fossil plant. The water-conducting tissues or tracheids consisted of extinct P-type cell walls. This type of cell wall consisted of scalariform bordered pits and perforated sheets that covered the openings (apertures) of the pits. A. chateaupannense is anatomically similar in some
primaryTopic
Armoricaphyton
Armoricaphyton is an extinct monospecific genus of vascular land plants described from Early Devonian (late Pragian-earliest Emsian) outcrops of the Chalonnes Formation in western France. The plant consists of small, leafless, longitudinally-ribbed axes that branch pseudomonopodially. Pairs of fusiform-shaped, twisted sporangia preserved as adpressions were found in association with the axes and may belong to this species. Permineralized specimens reveal the oldest documented wood or secondary xylem of any known fossil plant. The water-conducting tissues or tracheids consisted of extinct P-type cell walls. This type of cell wall consisted of scalariform bordered pits and perforated sheets that covered the openings (apertures) of the pits. A. chateaupannense is anatomically similar in some
has abstract
Armoricaphyton Strullu-Derrien ...... pareados ovoides a fusiformes.
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Armoricaphyton is an extinct m ...... uphyllophytina incertae sedis.
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Wikipage page ID
50,940,933
Wikipage revision ID
733,714,759
comment
Armoricaphyton Strullu-Derrien ...... Loire, Maine-et-Loire, Francia
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Armoricaphyton is an extinct m ...... anatomically similar in some
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label
Armoricaphyton
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Armoricaphyton
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