Gigantopterid (original) (raw)
Gigantopteris, är ett släkte av ormbunksliknande växter, tillhörande ormbunkarna eller fröormbunkarna, med stora pardelta blad. Släktet förekommer i yngre paleozoiska bildningar, i synnerhet perm, och omfattar två grupper, av vilka den ena, den som egentligen utmärker Gigantopterisfloran, förekommer i Ostasiens produktiva stenkolsformation, medan den andra gruppens former har hittats som fossil på Sumatra och södra USA.
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| dbo:abstract | Gigantopterids (Gigantopteridales) is an extinct, possibly polyphyletic group of plants known from the Permian period. Gigantopterids were among the most advanced land plants of the Paleozoic Era and disappeared around the Permian–Triassic extinction event around 252 million years ago. Though some lineages of these plants managed to persist initially, they either disappeared entirely or adapted radically, evolving into undetermined descendants, as surviving life prospered again in much-altered ecosystems. One hypothesis proposes that at least some "gigantopterids" became the ancestors of angiosperms and/or Bennettitales and/or Caytoniales. Gigantopterid fossils were documented as early as 1883, but only investigated more thoroughly in the early 20th century. Some of their most significant evidence was initially found in Texas, but they might have been present worldwide. Another key region for gigantopterid fossils is in China, and the consolidation of all major continents into Pangea would have allowed for easy global dispersal. They were among the most striking and important plants of the Cathaysian flora of Sino-Malaya, also called Gigantopteris flora to reflect this. (en) Gigantopteris, är ett släkte av ormbunksliknande växter, tillhörande ormbunkarna eller fröormbunkarna, med stora pardelta blad. Släktet förekommer i yngre paleozoiska bildningar, i synnerhet perm, och omfattar två grupper, av vilka den ena, den som egentligen utmärker Gigantopterisfloran, förekommer i Ostasiens produktiva stenkolsformation, medan den andra gruppens former har hittats som fossil på Sumatra och södra USA. (sv) |
| dbo:wikiPageExternalLink | http://chr.wikigadugi.org/wiki/Gigantopterid http://www.plantapalm.com/vce/evolution/images/Caphtor.jpg http://www.seedbiology.de/images/gigatopterid1.jpg https://web.archive.org/web/20070716220626/http:/www.gigantopteroid.org/images/DelnorteA3.jpg https://web.archive.org/web/20130926164528/http:/gigantopteroid.org/html/research.htm |
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| dbp:bot | InternetArchiveBot (en) |
| dbp:date | March 2022 (en) |
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| dbp:fixAttempted | yes (en) |
| dbp:name | Gigantopterids (en) |
| dbp:subdivision | See text. (en) |
| dbp:subdivisionRanks | Genera (en) |
| dbp:synonyms | Gigantonomiales (S.Meyen) (en) |
| dbp:taxon | Gigantopteridales (en) |
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| gold:hypernym | dbr:Name |
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| rdfs:comment | Gigantopteris, är ett släkte av ormbunksliknande växter, tillhörande ormbunkarna eller fröormbunkarna, med stora pardelta blad. Släktet förekommer i yngre paleozoiska bildningar, i synnerhet perm, och omfattar två grupper, av vilka den ena, den som egentligen utmärker Gigantopterisfloran, förekommer i Ostasiens produktiva stenkolsformation, medan den andra gruppens former har hittats som fossil på Sumatra och södra USA. (sv) Gigantopterids (Gigantopteridales) is an extinct, possibly polyphyletic group of plants known from the Permian period. Gigantopterids were among the most advanced land plants of the Paleozoic Era and disappeared around the Permian–Triassic extinction event around 252 million years ago. Though some lineages of these plants managed to persist initially, they either disappeared entirely or adapted radically, evolving into undetermined descendants, as surviving life prospered again in much-altered ecosystems. One hypothesis proposes that at least some "gigantopterids" became the ancestors of angiosperms and/or Bennettitales and/or Caytoniales. (en) |
| rdfs:label | Gigantopteridales (in) Gigantopterid (en) Gigantopteris (sv) |
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