About: Nematophyta

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The Nematophyta or nematophytes are a paraphyletic group of land organisms, probably including some plants as well as algae known only from the fossil record, from the Silurian period until the early Devonian Rhynie chert. The type genus Nematothallus, which typifies the group, was first described by Lang in 1937, who envisioned it being a thallose plant with tubular features and sporophytes, covered by a cuticle which preserved impressions of the underlying cells. He had found abundant disaggregated remains of all three features, none of which were connected to another, leaving his reconstruction of the phytodebris as parts of a single organism highly conjectural. No reproductive or vegetative structures common to the land plants are known, and certain members of the nematophyte plexus (i

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  • النيماتوفيتون (Nematophyta)، عاشت النباتات الخيطية في العصر السيلوري والعصر الديفوني منذ حوالي 400 مليون سنة وهو لايشبه أي نبات حديث، ويعتبر كصنف من أصناف الطحالب وهو صورة لنبات انتقالي بين النباتات المائية ونباتات اليابسة وقد كان حجمه كبيرًا إذ وجدت منه قطع متحجرة بلغ قطرها قدمان وكانت سيقانه تحتوي على نسيج وعائي. (ar)
  • Els Nematophyta són un grup d'organimes terrestres, probablement plantes (malgrat que la seva bioquímica és consistent amb l'afinitat a les algues), es coneixen en el registre fòssil des del Silurià fins a principis del Devonià al jaciment escocès de Rhynie chert. El gènere tipus és , que va ser descrit per Lang el 1933, a qui va semblar que podria ser una planta amb un tal·lus tubular i esporòfits coberts per una cutícula. La manca d'una definició clara dels Nematophyta ha portat a que sigui usat com un calaix de sastre de tàxons d'aquella època al voltant del Silúric fent del terme "Nematophytic" més un terme per establir la ignorància que no pas amb significat científic rigorós. (ca)
  • Die Nematophyta sind eine informelle Gruppe von rätselhaften Organismen aus dem Silur und Devon. Ihre Größe reicht von wenigen Millimetern bis zu mehrere Meter langen „Stämmen“. Ihr Körper ist vollständig aus verschieden großen und verschieden gestalteten Röhren aufgebaut. Die Nematophyta sind seit über 150 Jahren bekannt, ihre systematische Stellung, ihre Biologie und Ökologie ist nach wie vor wenig bekannt. Der größte Vertreter der Nematophyta ist die bis zu acht Meter große Prototaxites. Interpretationen ihrer systematischen Stellung reichen von verschiedenen Algengruppen (etwa Braunalgen) bis zu frühen Basidiomyceten oder Flechten. Die Fossilien ähneln verschiedenen Abbaustadien von modernen Lebermoosen, könnten also auch von Vorläufern der heutigen Lebermoose stammen. Weitere Fossilien, die zu den Nematophyta gestellt werden, sind: * Nematothallus * Nematoplexus * Nematasketum * Pachytheca (de)
  • The Nematophyta or nematophytes are a paraphyletic group of land organisms, probably including some plants as well as algae known only from the fossil record, from the Silurian period until the early Devonian Rhynie chert. The type genus Nematothallus, which typifies the group, was first described by Lang in 1937, who envisioned it being a thallose plant with tubular features and sporophytes, covered by a cuticle which preserved impressions of the underlying cells. He had found abundant disaggregated remains of all three features, none of which were connected to another, leaving his reconstruction of the phytodebris as parts of a single organism highly conjectural. No reproductive or vegetative structures common to the land plants are known, and certain members of the nematophyte plexus (including Nemataplexus, axial conjugations of banded and branching tubes) seem to belong to the fungi. The lack of a clear definition of the nematophytes has led to it being used as a wastebasket taxon, with all manner of tubes and cell-patterned cuticles from around the Silurian being dubbed "nematophytic" more as a statement of ignorance than as a scientifically meaningful statement. Nematophytes, including cuticle and banded tubes, have been found in coprolites that were apparently produced by millipedes. (en)
  • Nematophyta é um grupo de organismos terrestres, provavelmente plantas (apesar da sua bioquímica possuir uma afinidade algal), conhecidas apenas do registo fóssil, entre o Silúrico superior e o princípio do Devónico. O seu género-tipo, , que tipifica o grupo, foi descrito pela primeira vez por Lang em 1933, que visionou uma planta talosa, com estruturas tubulares e esporófitos, cobertos por uma cutícula que preservou as impressões das células subjacentes. Apesar de Lang ter encontrado restos abundantes das três estruturas, estes estavam desagregados e nenhum deles estava ligado a outra estrutura, levando a que a sua reconstrução dos restos vegetais fosse altamente conjectural. A falta de uma definição clara sobre os nematófitos levou a que este grupo fosse utilizado como um "caixote do lixo", onde todo o tipo de tubos e cutículas com padrões de células impressos da altura do Silúrico eram denominados nematofíticos, mais com o estatuto de ignorância, do que com um estatuto cientificamente relevante. A taxonomia de Lineu tenta acomodar a maioria dos grupos fósseis à medida que tende a formar dos taxa modernos. Assim sendo, apesar das tentativas de formalizar a nomenclatura de Nematothalli, a hierarquia de classe, ordem e família é melhor entendida como um grupo-tronco dos embriófitos (plantas terrestres modernas), com as algas verdes a serem, por sua vez, um grupo-tronco para os nematófitos. De facto, uma vez que nenhuma estrutura reprodutiva ou vegetativa comuns em plantas terrestres é observada, pode até nem ser seguro assumir esta relação entre grupos. (pt)
  • 織絲植物門(Nematophyta)是一個複系的陸地植物門,包含一些僅有化石記錄的藻類, 歷史可追溯至上志留紀。 模式屬(Nematothallus)首次描述於1933年, 這是一類,有管狀結構和孢子體,外部有一層角質層包裹。其生長結構不同於已知的其他陸地植物, 而且其中一些植物與真菌更為相似。 織絲植物常見於多足類的糞化石中。 (zh)
  • Нематофи́товые водоросли, или Нематофи́ты (лат. Nematóphyta) — отдел водорослей, описанный Уильямом Лангом в 1937 году (ru)
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  • Lang, 1937 (en)
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  • incertae sedis (en)
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  • Cuticle of Cosmochlaina, retrieved from the Burgsvik beds by acid maceration. Cells about 12 μm in diameter. (en)
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  • Family Nematothallaceae: Family Nematophytaceae: (en)
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  • Families and genera (en)
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  • Nematophyta (en)
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  • النيماتوفيتون (Nematophyta)، عاشت النباتات الخيطية في العصر السيلوري والعصر الديفوني منذ حوالي 400 مليون سنة وهو لايشبه أي نبات حديث، ويعتبر كصنف من أصناف الطحالب وهو صورة لنبات انتقالي بين النباتات المائية ونباتات اليابسة وقد كان حجمه كبيرًا إذ وجدت منه قطع متحجرة بلغ قطرها قدمان وكانت سيقانه تحتوي على نسيج وعائي. (ar)
  • 織絲植物門(Nematophyta)是一個複系的陸地植物門,包含一些僅有化石記錄的藻類, 歷史可追溯至上志留紀。 模式屬(Nematothallus)首次描述於1933年, 這是一類,有管狀結構和孢子體,外部有一層角質層包裹。其生長結構不同於已知的其他陸地植物, 而且其中一些植物與真菌更為相似。 織絲植物常見於多足類的糞化石中。 (zh)
  • Нематофи́товые водоросли, или Нематофи́ты (лат. Nematóphyta) — отдел водорослей, описанный Уильямом Лангом в 1937 году (ru)
  • Els Nematophyta són un grup d'organimes terrestres, probablement plantes (malgrat que la seva bioquímica és consistent amb l'afinitat a les algues), es coneixen en el registre fòssil des del Silurià fins a principis del Devonià al jaciment escocès de Rhynie chert. El gènere tipus és , que va ser descrit per Lang el 1933, a qui va semblar que podria ser una planta amb un tal·lus tubular i esporòfits coberts per una cutícula. (ca)
  • Die Nematophyta sind eine informelle Gruppe von rätselhaften Organismen aus dem Silur und Devon. Ihre Größe reicht von wenigen Millimetern bis zu mehrere Meter langen „Stämmen“. Ihr Körper ist vollständig aus verschieden großen und verschieden gestalteten Röhren aufgebaut. Die Nematophyta sind seit über 150 Jahren bekannt, ihre systematische Stellung, ihre Biologie und Ökologie ist nach wie vor wenig bekannt. Weitere Fossilien, die zu den Nematophyta gestellt werden, sind: * Nematothallus * Nematoplexus * Nematasketum * Pachytheca (de)
  • The Nematophyta or nematophytes are a paraphyletic group of land organisms, probably including some plants as well as algae known only from the fossil record, from the Silurian period until the early Devonian Rhynie chert. The type genus Nematothallus, which typifies the group, was first described by Lang in 1937, who envisioned it being a thallose plant with tubular features and sporophytes, covered by a cuticle which preserved impressions of the underlying cells. He had found abundant disaggregated remains of all three features, none of which were connected to another, leaving his reconstruction of the phytodebris as parts of a single organism highly conjectural. No reproductive or vegetative structures common to the land plants are known, and certain members of the nematophyte plexus (i (en)
  • Nematophyta é um grupo de organismos terrestres, provavelmente plantas (apesar da sua bioquímica possuir uma afinidade algal), conhecidas apenas do registo fóssil, entre o Silúrico superior e o princípio do Devónico. O seu género-tipo, , que tipifica o grupo, foi descrito pela primeira vez por Lang em 1933, que visionou uma planta talosa, com estruturas tubulares e esporófitos, cobertos por uma cutícula que preservou as impressões das células subjacentes. Apesar de Lang ter encontrado restos abundantes das três estruturas, estes estavam desagregados e nenhum deles estava ligado a outra estrutura, levando a que a sua reconstrução dos restos vegetais fosse altamente conjectural. (pt)
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  • نباتات خيطية (ar)
  • Nematòfits (ca)
  • Nematophyta (de)
  • Nematophyta (en)
  • Nematophyta (pt)
  • Нематофитовые водоросли (ru)
  • 織絲植物門 (zh)
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