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  • Calamites - Wikipedia
    Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related [1] Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of 30–50 meters (98–164 ft) [ 2 ]
  • Calamites | Horsetail Ferns, Carboniferous Plants Extinct . . .
    Calamites, genus of tree-sized, spore-bearing plants that lived during the Carboniferous and Permian periods (about 360 to 250 million years ago) Calamites had a well-defined node-internode architecture similar to modern horsetails, and its branches and leaves emerged in whorls from these nodes
  • Fossil of the month: Calamites - University of Kentucky
    Fossil of the month: Calamites This month’s fossil is one of the most common fossils in the Eastern Kentucky Coal Field It is the fossil horsetail rush, Calamites Description Calamites is a fossil “horsetail” or “scouring” rush Rushes are reed-like plants with jointed stems
  • Calamites: Habit, Sub-Genera and Structure - Biology Discussion
    The stem anatomy of Calamites shows an epidermis, cortex and an endarch siphonostele (Fig 7 76A) The young stem shows differentia­tion of cortical tissue: an outer sclerotic zone and an inner thin-walled parenchymatous zone
  • Calamites - an overview | ScienceDirect Topics
    Calamites extends from the Late Mississippian into the Permian and is reconstructed as an upright, arborescent plant that grew to a height of ∼20 m; stems could reach a diameter of >60 cm, for example, Arthropitys ezonata (FIG 10 32) (Rössler and Noll, 2006)
  • Calamite fossils | Earth Sciences Museum - University of Waterloo
    Calamites are a type of horse tail plant that lived in the coal swamps of the Carboniferous Period They were prehistoric relatives of the modern horse tail, but looked more like a pine tree and grew up to 40 feet
  • Calamites - geology. ar. gov
    Plant fossils with parallel lines running the length of the segment are usually referred to as Calamites Calamites fossils have been found in the Mississippian Imo interval in the Ozarks and in the Pennsylvanian McAlester Formation in the





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