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- Calamites, genus of tree -sized, spore -bearing plants that lived during the Carboniferous and Permian periods (about 360 to 250 million years ago).
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.
- Calamitaceae
Other articles where Calamitaceae is discussed:...
- Calamitaceae
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 (100–160 feet). [2]
Jan 5, 2023 · Calamites lived from the Late Mississippian to Permian. They are common fossils in Middle Pennsylvanian coal-bearing rocks in Kentucky and can be found in 52 counties, including both of Kentucky’s coal fields. Calamites fossils are more common in the Eastern Kentucky Coal Field because of topography and exposure of plant fossil-bearing rocks ...
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.
Calamities were horsetail like trees that went extinct about 250 to 360 million years ago. These plants were medium-sized trees, growing to heights of 30-50 meters and about 100-160 feet. The trunk of these trees had an appearance like a bamboo trunk while the leaves were needle-shaped.
Calamites. Calamites are commonly found stem fossils of the coal measures (Fig. 4a,b). These stems are ridged with divided segments, some reaching 60 centimetres across, and wide enough to suggest that in life the plants might have reached up to 20 m in height.
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May 8, 2018 · The generic name Calamites was first given to the ridged and furrowed casts of the pith cavity, which are commonly encountered fossils (see FORM GENERA). Unlike their smaller modern counterparts (Equisetum species) some Carboniferous species grew to 18 m tall.
