Miaohephyton
''Miaohephyton'' is a carbonaceous compression fossil of a thalloid organism that has been interpreted as a brown alga. Its Neoproterozoic age () is incompatible with molecular clocks that estimate the divergence of the brown algae around , leading to suggestions that its "brown algal" features are the result of convergence. The organism grew both by apical growth (leading to bifurcation) and intercalary growth (increasing the distances between nodes). Some specimens are smooth, whereas others bear rounded structures that are interpreted as conceptacle Conceptacles are specialized cavities of marine and freshwater algae that contain the reproductive organs. They are situated in the receptacle and open by a small ostiole.Boney, A.D. (1969). ''A Biology of Marine Algae''. Hutchinson Educational ...s. References Enigmatic algae taxa Ediacaran life {{Ediacaran-stub ...
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Conceptacle
Conceptacles are specialized cavities of marine and freshwater algae that contain the reproductive organs. They are situated in the receptacle and open by a small ostiole.Boney, A.D. (1969). ''A Biology of Marine Algae''. Hutchinson Educational Ltd, London Conceptacles are present in Corallinaceae,Irvine, L.M. and Chamberlain, Y.M. (1994). ''Seaweeds of the British Isles''. Volume 1, Part 2B. Natural History Museum, London. and Hildenbrandiales, as well as the brown Fucales. In the Fucales there is no haploid phase in the reproductive cycle and therefore no alternation of generations.Fritsch, F.E. (1945). ''The Structure and Reproduction of the Algae''. Vol 2. Cambridge University Press, Cambridge The thallus is a sporophyte.Smith, G.M. (1938). ''Cryptogamic Botany. Algae and Fungi''. Second edition, Volume ''1'', McGraw-Hill Bok Company, Inc. The diploid plants produce male ( antheridia) and female (oogonia) gametangia by meiosis. The gametes are released into the surrounding w ...
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Enigmatic Algae Taxa
Enigmatic is an adjective meaning "mysterious" or "puzzling". It may also refer to: * ''Enigmatic'' (album), a 1970 album by Czesław Niemen * '' Enigmatic: Calling'', a 2005 album by Norwegian progressive metal band Pagan's Mind * Enigmatic scale, musical scale used by Verdi and others * "The Enigmatic", a song by Joe Satriani on the album '' Not of This Earth'' See also * Enigmatic leaf turtle, a species of Asian leaf turtle * Enigmatic moray eel, a species found in the Pacific and Indian Oceans * ''Glaresis'', a genus of beetles sometimes called "enigmatic scarab beetles" * Enigma (other) Enigma may refer to: *Riddle, someone or something that is mysterious or puzzling Biology *ENIGMA, a class of gene in the LIM domain Computing and technology * Enigma (company), a New York–based data-technology startup *Enigma machine, a famil ...