- trilete spores
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споры с трехлучевой щелью разверзания
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
trilete — ˈtrīˌlēt adjective Etymology: New Latin Triletes, genus of spores with trigonous apertures, perhaps irregular from tri + Latin latus side : trigonous … Useful english dictionary
fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… … Universalium
Fern — /ferrn/, n. a female given name. * * * Any of about 10,000–12,000 species (division Filicophyta) of nonflowering vascular plants that have true roots, stems, and complex leaves and reproduce by spores. Though ferns were once classified with the… … Universalium
Spore — For other uses, see Spore (disambiguation). Spores produced in a sporic life cycle. In biology, a spore is a reproductive structure that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions. Spores form… … Wikipedia
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
plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… … Universalium
Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… … Universalium
Histoire évolutive des végétaux — Diversité des plantes modernes. Les végétaux ont évolué en atteignant des niveaux croissants de complexité, depuis les premières algues, en passant par les bryophytes, les lycopodes et les fougères, jusqu aux complexes gymnospermes et angios … Wikipédia en Français
Palynology — cite journal author = Gray, J. year = 1985 title = The Microfossil Record of Early Land Plants: Advances in Understanding of Early Terrestrialization, 1970 1984 journal = Philosophical Transactions of the Royal Society of London. Series B,… … Wikipedia
Cryptospores — are fossilised primitive plant spores that first appear in the fossil record during the late Ordovician to early Silurian period. Contents 1 Evidence that cryptospores derive from land plants 1.1 Occurrence 1.2 Wall Ultrastruc … Wikipedia
Ornatifilum — Temporal range: Late Silurian (Wenlock) Early Devonian (Lochkovian)[1] An Ornatifilum like fossil, identical to those described by Sherwood Pike and Gray … Wikipedia