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Pseudosycidium

Pseudosycidium The first of the Charales, a distinct evolutionary line of green algae which arose during the Upper Silurian and whose method of reproduction was sexual. Well-developed male (antheridia) and female (oogonia) organs can be identified, the secretion of calcium carbonate around the female organs assisting preservation. See also CHAROPHYCEAE; and GYROGONITE.

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"Pseudosycidium." A Dictionary of Earth Sciences. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"Pseudosycidium." A Dictionary of Earth Sciences. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pseudosycidium

"Pseudosycidium." A Dictionary of Earth Sciences. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pseudosycidium

Pseudosycidium

Pseudosycidium The first of the charophytes, a distinct, new, evolutionary line of green algae which arose during the Silurian and whose method of reproduction was sexual. Well-developed male (antheridia) and female (oogonia) organs can be identified, the secretion of calcium carbonate around the female organs assisting preservation.

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"Pseudosycidium." A Dictionary of Plant Sciences. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"Pseudosycidium." A Dictionary of Plant Sciences. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pseudosycidium-0

"Pseudosycidium." A Dictionary of Plant Sciences. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pseudosycidium-0