Calamitaceae

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]

Calamitaceae Temporal range: Carboniferous–Permian PreꞒ Ꞓ O S D C P T J K Pg N
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

Proposed genera and species of Calamitaceae

Asterophyllites equisetiformis

• Annularia.
  • A. stellata.
• Arthropitys.
• Asterophyllites (or incorrectly Asterophyllum).
• Astromyelon.

Calamites

• Calamites.
  • C. carinatus.
  • C. suckowi.
  • C. undulatus.
• Calamocarpon.
• Calamostachys.
  • C. binneyana.
• Cingularia.
• Mazostachys.
• Paleostachya.