Lycopsid stems and roots and sphenopsid fructifications and stems from the upper Freeport coal of southeastern Ohio,
Abbott, Maxine Langford.
Lycopsid stems and roots and sphenopsid fructifications and stems from the upper Freeport coal of southeastern Ohio, by Maxine L. Abbott. - Ithaca, N.Y., Paleontological Research Institution, 1968. - 49 p. illus. 31 cm. - Palaeontographica Americana, v. 6, no. 38 .
Bibliography: p. 23-25.
gs 68000130 //r93
Paleobotany--Pennsylvanian.
Plants, Fossil--Ohio.
QE701 QE971 / .I82 v. 6, no. 38
Lycopsid stems and roots and sphenopsid fructifications and stems from the upper Freeport coal of southeastern Ohio, by Maxine L. Abbott. - Ithaca, N.Y., Paleontological Research Institution, 1968. - 49 p. illus. 31 cm. - Palaeontographica Americana, v. 6, no. 38 .
Bibliography: p. 23-25.
gs 68000130 //r93
Paleobotany--Pennsylvanian.
Plants, Fossil--Ohio.
QE701 QE971 / .I82 v. 6, no. 38