Armoricaphyton (original) (raw)
Armoricaphyton chateaupannense est une espèce éteinte de plantes, découverte en Anjou, en 2006, dans la carrière de calcaire de Montjean-sur-Loire par Christine Strullu-Derrien. Elle est aujourd'hui reconnue comme le plus vieux fossile ligneux connu au monde.
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| dbo:abstract | Armoricaphyton is an extinct monospecific genus of vascular land plants described from Early Devonian (late Pragian-earliest Emsian) outcrops of the 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 respects to other members of the Euphyllophytina such as Psilophyton and Franhueberia. Franhueberia gerriennei is also one of the earliest land plants described from the Early Devonian (late Emsian) that was known to have wood. Given the differences between Armoricaphyton and these other genera and a lack of a complete understanding of the whole plant, Armoricaphyton is currently classified as Euphyllophytina incertae sedis. (en) Armoricaphyton , 2014 es un género de Tracheophyta perteneciente a la subdivisión Euphyllophyta. Los restos fósiles de la única especie conocida en el género, Armoricaphyton chateaupannense , 2014, fueron hallados en un yacimiento de la comprendido entre los periodos Pragiense final y Emsiense temprano del Devónico inferior en las proximidades de la Bahía de Gaspé, en las proximidades de la localidad de Montjean-sur-Loire, Maine-et-Loire, Francia Género y especie son conocidos, junto a Franhueberia, como los vegetales más antiguos con crecimiento secundario. Morfológicamente Armoricaphyton presenta una serie de tallos erectos y lisos con ramificación anisótoma en inserción aguda. Su cilindro vascular está formado por una estela de tipo haplostela con xilema primario, , haces de xilema secundario y . Se han asociado a los fósiles una serie de esporangios pareados ovoides a fusiformes. (es) Armoricaphyton chateaupannense est une espèce éteinte de plantes, découverte en Anjou, en 2006, dans la carrière de calcaire de Montjean-sur-Loire par Christine Strullu-Derrien. Elle est aujourd'hui reconnue comme le plus vieux fossile ligneux connu au monde. (fr) |
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| dbo:wikiPageWikiLink | dbc:Devonian_plants dbr:Psilophyton dbr:Tracheids dbr:Devonian dbr:Franhueberia dbr:Early_Devonian dbr:Euphyllophytina dbr:List_of_Early_Devonian_land_plants dbc:Early_Devonian_plants dbr:Sporangia dbr:Wood dbr:Polysporangiophytes dbr:Permineralized dbr:Secondary_xylem dbr:Chalonnes_Formation |
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| dbp:taxon | Armoricaphyton (en) |
| dbp:wikiPageUsesTemplate | dbt:Automatic_taxobox dbt:Italic_title dbt:Reflist dbt:Short_description dbt:Taxonbar dbt:Devonian-plant-stub |
| dcterms:subject | dbc:Devonian_plants dbc:Early_Devonian_plants |
| rdfs:comment | Armoricaphyton chateaupannense est une espèce éteinte de plantes, découverte en Anjou, en 2006, dans la carrière de calcaire de Montjean-sur-Loire par Christine Strullu-Derrien. Elle est aujourd'hui reconnue comme le plus vieux fossile ligneux connu au monde. (fr) Armoricaphyton is an extinct monospecific genus of vascular land plants described from Early Devonian (late Pragian-earliest Emsian) outcrops of the 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 respects to other m (en) Armoricaphyton , 2014 es un género de Tracheophyta perteneciente a la subdivisión Euphyllophyta. Los restos fósiles de la única especie conocida en el género, Armoricaphyton chateaupannense , 2014, fueron hallados en un yacimiento de la comprendido entre los periodos Pragiense final y Emsiense temprano del Devónico inferior en las proximidades de la Bahía de Gaspé, en las proximidades de la localidad de Montjean-sur-Loire, Maine-et-Loire, Francia (es) |
| rdfs:label | Armoricaphyton (en) Armoricaphyton (es) Armoricaphyton chateaupannense (fr) |
| owl:sameAs | yago-res:Armoricaphyton wikidata:Armoricaphyton dbpedia-es:Armoricaphyton dbpedia-fr:Armoricaphyton https://global.dbpedia.org/id/23r1w |
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| is dbo:wikiPageWikiLink of | dbr:Devonian dbr:Franhueberia dbr:List_of_Early_Devonian_land_plants dbr:2019_in_paleobotany |
| is foaf:primaryTopic of | wikipedia-en:Armoricaphyton |