Horneophyton — n. A genus of Devonian fossil plants considered one of the earliest forms of vascular land plants; it is similar to genus {Rhynia} but smaller. Syn: genus {Horneophyton}. [WordNet 1.5] … The Collaborative International Dictionary of English
Horneophyton — taxobox fossil range=Silurian DevonianVerify source|date=January 2008 regnum = Plantae divisio = unassigned classis = Horneophytopsida genus= Horneophyton genus authority = Kidston Lang 1920 emend. Barghoorn Darrah 1938 species = H. lignieri… … Wikipedia
Horneophyton — noun Devonian fossil plant considered one of the earliest forms of vascular land plants; similar to genus Rhynia but smaller • Syn: ↑genus Horneophyton • Hypernyms: ↑fern genus • Member Holonyms: ↑Rhyniaceae, ↑family Rhyniaceae * * * ˈ … 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
Rhyniaceae — noun primitive plants of the Paleozoic • Syn: ↑family Rhyniaceae • Hypernyms: ↑fern family • Member Holonyms: ↑Psilophytales, ↑order Psilophytales • Member Meronyms: ↑ … Useful english dictionary
family Rhyniaceae — noun primitive plants of the Paleozoic • Syn: ↑Rhyniaceae • Hypernyms: ↑fern family • Member Holonyms: ↑Psilophytales, ↑order Psilophytales • Member Meronyms: ↑ … Useful english dictionary
Rhynie plant — ▪ fossil plant rootless, leafless, spore bearing plant preserved in the Rhynie Chert, a mineral deposit that has been dated to the early part of the Devonian Period (416 to 359 million years ago), near present day Aberdeen, Scot. Rhynia,… … Universalium
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
Rhynie chert — The Rhynie chert is an Early Devonian Lagerstättefound near the village of Rhynie, Aberdeenshire, Scotland, containing exceptionally preserved plant, fungus, lichen and animal material petrified in three dimensions by covering with fast setting… … Wikipedia
Rhynia — noun type genus of the Rhyniaceae; small leafless dichotomously branching fossil plants with terminal sporangia and smooth branching rhizomes • Syn: ↑genus Rhynia • Hypernyms: ↑fern genus • Member Holonyms: ↑Rhyniaceae, ↑family Rhyniaceae * * * … Useful english dictionary