Equisetopsida (Horsetailes)

Equisetopsida, or Sphenopsida, is a class of plants with a fossil record going back to the Devonian. They are commonly known as horsetails. Living species typically grow in wet areas, with needle-like leaves radiating at regular intervals from a single vertical stem. The Equisetopsida were formerly regarded as a separate division of spore plants and also called Equisetophyta, Arthrophyta or Sphenophyta; today they have been recognized as rather close relatives of the typical ferns (Pteridopsida) and form a specialized lineage of the Pteridophyta.

Source: http://en.wikipedia.org/wiki/Equisetopsida

Annularia stellata		ZŠ329
Annularia stellata	Šimůnek (1994), Pl. I, fig. 5	ZŠ41
Annularia stellata		ZŠ341
Annularia stellata		ZŠ196
Annularia stellata	Šimůnek (1994), Pl. I, fig. 3	ZŠ38
Asterophyllites equisetiformis		ZŠ519
Asterophyllites equisetiformis		ZŠ515
Asterophyllites equisetiformis		ZŠ520
Asterophyllites grandis		WA128
Asterophyllites grandis		WA185
Asterophyllites longifolius		WA139
Asterophyllites longifolius		ZŠ197
Asterophyllites longifolius		ZŠ554
Asterophyllites		WA194
Asterophyllites		WA164
Bowmanites Binney, 1871		ZŠ807
Bowmanites Binney, 1871		ZŠ331
Calamites carinatus		ZŠ392
Calamites cistii		ZŠ393
Calamites cistii		ZŠ769

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Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]