FOSSIL PLANTS
of the
Middle Pennsylvanian Period

---

ARTICULATES
(Sphenopsids)

---

Calamites ...what is it?	DESCRIPTION
	the main stem
	calamite branch scars
	calamite branches
	calamite cones
	types of calamite foliage	Annularia
		Asterophyllites

Sphenophyllum		DESCRIPTION: Small, jointed-stemmed land plants, resembling the modern bedstraw. Characterized by wedge-shaped leaves, longitudinally ribbed internodes, and terminally attached cones

THIS PAGE BY:

Monte Hieb

Last update: September 24, 1999

NOTE: Calamite tree adapted from Jerry Jenkins' drawing published in:
Plant Fossils of West Virginia
West Virginia Geological and Economic Survey
Educational Series ED-3A, 1978.