Florissantia Species Flower
''Florissantia'' can refer to: * ''Florissantia'' (plant), an extinct plant genus in the family Malvaceae * ''Florissantia'' (planthopper), an extinct dictyopharid planthopper insect genus {{Genus disambiguation ...
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Florissantia (plant)
''Florissantia'' is an extinct genus of flowering plants in the Malvaceae subfamily Sterculioideae known from western North America and far eastern Asia. Flower, fruit, and pollen compression fossils have been found in formations ranging between the Early Eocene through to the Early Oligocene periods. The type species is ''Florissantia speirii'' and three additional species are known, ''Florissantia ashwillii'', ''Florissantia quilchenensis'', and ''Florissantia sikhote-alinensis''. Distribution Fossils of ''Florissantia'' have been found in Early Eocene to Middle Oligocene localities, including fossil beds in Alaska, British Columbia, Colorado, Montana, Oregon, Utah, Washington, Wyoming and the Russian far east. The type species ''F. speirii'' is known from a number of formations in the west, with the type locality being the Florissant Formation of Colorado. The formation is composed of successive lake deposits resulting from a volcanic debris flow damming a valley. When ...
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