L8-1: Archaeocalamites from Nova Scotia. Age L. Carboniferous

L8-2: Pit cast of Calamites from Illinois. Age Pennsylvanian.

L8-4: Calamites cf. suckowi from Lingan Mine Dump, N.S. Age E. Pennsylvanian.

L8-5: Pith cast of Calamites from Illinois. Age Pennsylvanian.

L8-7: Calamites from Illinois collected by W.N. Stewart

L8-8: Calamites

Stem cast of Calamites with branch scars.

L8-10: Pith cast of Calamites from Lewis Creek, Kentucky. Age L. Pennsylvanian.

L8-11: Peel of Arthropitys x.s. of stem. Origin N.A. Age Pennylvanian.

L8-12: Peel of a young stem of Arthropitys from N.A. Age Pennsylvanian.

Peels of Calamites stems x.s.

L8-17: Peel of Calamites stem x.s.

L8-18: Calamites stem x.s. from Lewis Creek, Kentucky. Age L.Pennsylvanian.

L8-21: Calamites stem x.s. from Shore LIttleborough. Age Carboniferous.

L8-24: Calamodendron x.s.

L8-26: Leaves of Calamites. Annularia radiate from Mazon Creek. Age Pennsylvanian

L8-27: Annularia from Mazon Creek. Age Pennsylvanian.

L8-33: Annularia sp. from Ottawa, Kansas. Age Pennsylvanian

L8-34: Asterophyllites from Mazon Creek. Age Pennsylvanian.

L8-40: Asterophylittes equisetiformis from Lingan Mine Dump, N.S.. Age Carboniferous.

L8-41: Annularia hoskinsii x.s. leaves from Shade,Ohio. Age Pennsylvanian.

L8-46: Asteromyelon sp. x.s. of calamites root

L8-47: Calamostachys from Mazon Creek. Age U. Pennsylvanian.

L8-49: Calamostachys l.s. of cone from Montevallo, Alabama. Age Pennsylvanian.

L8-51: Calamostachys l.s. cone from Lingan Mine Dump, N.S.. Age Carbonifeours.

L8-55: Peel of Calamostachys americana x.s. of cone

L8-56: Peel of Calamostachys l.s. cone from Lewis Creek, Kentucky. Age L. Pennsylvanian

L8-57: Calamostachys binneyana, showing microspores and megaspores. Specimen is from England. Age Carboniferous

L8-61: Calamocarpon insignis l.s. of sporangia. Age M. Pennsylvanian.

L8-64: Calamostachys from Mazon Creek

L8-65: Palaeostachya decacnema l.s. of cone

L8-69: Neocalamites foxii from India. Age M-U Triassic.

L8-78: Sphenophyllum leaves, compression. Age Pennsylvanian.

L8-80: Sphenophyllum fasciculatum from Alabama, Pottsville Fm.

L8-85: Sphenophyllum leaves from Knoxville, Tennesee.

L8-88: Sphenophyllum leaves from Knowville, Tennesee.

L8-89: Sphenophyllum stem x.s.

L8-90: Peel of Sphenophyllum older stem x.s. Age M. Pennsylvanian.

L8-96: Peel showing Sphenophyllum roots in cross section

L8-97: Peel showing l.s. bracts, sporangia and sporangiophores. Age Carboniferous.

L8-99: Equisetites arctic from Driftwood Creek, B.C. Age M. Eocene.

L8-100: Equisetites fragment from the Drumheller area. Age U. Cretaceous.

L8-103: A small fragment of a stem of Equisetites arcticum showing the node with the remnants of leaves. From Smokey Tower, Paskapoo Fm. Age Paleocene.

L8-104: Equisetites stem from Joseph Creek, B.C. Age M. Eocene.
Note the nodes with the reduced leaves.

L8-105: Four specimens of Equisetites arcticum showing rhizomes, tubers and leaf sheaths. From Smokey Tower, Paskapoo Fm. Age Paleocene.

Extant stem of Equisetum. Note the darker notes where the tiny small leaves are.

L8-106: Extant Equisetum rhizome with tubers.

L8-108: Phyllotheca indica a from Rainganj coalfield. Age Upper Permian.

L8-109: Calamites cone from Murphysboro, Illinois. Age Pennsylanian.

L8-117: Phyllotheca a morphogenus this one from India. However, it is widely distributed from the Pennsylvanian to the Permian.

L5-27: Colpodexylon from N.Y. Age Upper Devonian. Note spiral arrangement of leaf scars.

L8-118: Schizoneura gondwansis from Bika, India. Age U. Permian.

L8-119: Equisetum tuber from Horseshoe Canyon Fm. Age Upper Cretaceous.