Calamitales
| Calamitaceae Temporal range: Carboniferous |
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| Annularia stellata | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridophyta |
| Class: | Equisetopsida |
| Order: | Equisetales |
| Family: | Calamitaceae |
| Genera | |
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Calamitaceae is an extinct family of plants related to the modern horsetails. Some members of this family attained tree-like stature during the Carboniferous Period (around 360 to 300 million years ago) and in Permian Period. The family takes its name from its principal genus Calamites. Several members of this family often simply called Calamit.
Because some proposed species are based on partial fossil records, it is not clear if these are merely different parts of the same type.
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