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Calamitaceae is an extinct family of plants related to the modern horsetail. Plants are living Organisms belonging to the kingdom Plantae. A fern is any one of a group of about 20000 Species of Plants classified in the phylum or division Pteridophyta, also known as Filicophyta Equisetopsida, or Sphenopsida, is a class of Plants with a fossil record going back to the Devonian. The Equisetales is an order of pteridophytes with only one living genus Equisetum (horsetails In Biological classification, family ( Latin Equisetum is a genus of Vascular plants that reproduce by spores rather than seeds Some members of this family attained tree-like stature during the Carboniferous Period. The Carboniferous is a geologic period and system that extends from the end of the Devonian period about 359 The family takes its name from its principal genus Calamites. A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic Calamites is a genus of Extinct arborescent (tree-like horsetails to which the modern Horsetails (genus Equisetum) are closely
Because some proposed species are based on partial fossil records, it is not clear if these are merely different parts of the same type. FOSSIL is a standard protocol for allowing serial communication for Telecommunications programs under the DOS Operating system.