Calamitaceae Temporal range:
| |
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Annularia stellata | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Subclass: | Equisetidae |
Order: | Equisetales |
Family: | †Calamitaceae Unger, 1840[citation needed] |
Genera | |
See text |
Calamitaceae is an extinct family of equisetalean plants related to the modern horsetails, known from the Carboniferous and Permian periods.[1] Some members of this family like Arthropitys attained tree-like stature, with heights over 15 metres (49 ft), with extensive underground rhizomes. They were largely found in wetland environments.[2]