genus Psilophyton

type genus of the Psilophytaceae: genus of small wiry herbaceous Paleozoic plants with underground rhizomes and apical sporangia
Hypernyms: ↑fern genus
Member Holonyms: ↑Psilophytaceae, ↑family Psilophytaceae
Member Meronyms: ↑psilophyton

Useful english dictionary. 2012.

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  • Psilophyton — Taxobox name = Psilophyton fossil range = Devonian regnum = Plantae divisio = Trimerophytophyta classis = ordo = familia = genus = Psilophyton † genus authority = For the group, see Psilophyta. Psilophyton is a fossil genus which currently… …   Wikipedia

  • psilophyton — noun any plant or fossil of the genus Psilophyton • Hypernyms: ↑vascular plant, ↑tracheophyte • Member Holonyms: ↑genus Psilophyton * * * sīˈläfəˌtän noun Etymology: New Latin …   Useful english dictionary

  • fern genus — noun genera of ferns and fern allies • Hypernyms: ↑genus • Hyponyms: ↑genus Pecopteris, ↑Hymenophyllum, ↑genus Hymenophyllum, ↑Trichomanes, ↑genus Trichomanes, ↑genus Osmun …   Useful english dictionary

  • Psilophytaceae — noun Paleozoic plants • Syn: ↑family Psilophytaceae • Hypernyms: ↑fern family • Member Holonyms: ↑Psilophytales, ↑order Psilophytales • Member Meronyms: ↑ …   Useful english dictionary

  • family Psilophytaceae — noun Paleozoic plants • Syn: ↑Psilophytaceae • Hypernyms: ↑fern family • Member Holonyms: ↑Psilophytales, ↑order Psilophytales • Member Meronyms: ↑ …   Useful english dictionary

  • Evolutionary history of plants — Plants have evolved through increasing levels of complexity, from the earliest algal mats, through bryophytes, lycopods, ferns and gymnosperms to the complex angiosperms of today. While the simple plants continue to thrive, especially in the… …   Wikipedia

  • Tortilicaulis — taxobox fossil range = Late Silurian to early Devonian title= Tortilicaulis regnum = Plantae divisio = unassigned classis = Horneophytopsida genus = Tortilicaulis genus authority = Edwards 1979cite journal author = Edwards, D. year = 1979 title …   Wikipedia

  • Aneurophyton — ▪ fossil plant genus       genus of extinct plants (plant) that lived during the Middle and Late Devonian epochs (Devonian Period) (about 398 to 359 million years ago) and is commonly considered a basal member of the progymnosperms the probable… …   Universalium

  • psilophyte — noun Etymology: New Latin Psilophyton, genus of plants, from Greek psilos bare, mere (probably akin to Greek psēn to rub) + phyton plant more at phyt Date: circa 1911 any of a division (Psilophyta) of simple dichotomously branched plants that… …   New Collegiate Dictionary

  • Silurian — Geological period from=444 middle=429 to=416 o2=14 co2=4500 temp=17The Silurian is a geologic period and system that extends from the end of the Ordovician period, about 443.7 ± 1.5 Ma (million years ago), to the beginning of the Devonian period …   Wikipedia

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