Fertile and sterile frond segments of the lyginopterid seed fern Feraxotheca

Fossil plants of the carboniferous rocks of Great Britain

1923 • 192 citations

A critical review of the upper Pennsylvanian floras of eastern United States with notes on the Mazon Creek flora of Illinois

1969 • 93 citations

THE MORPHOLOGY AND RELATIONSHIPS OF RHODEA, TELANGIUM, TELANGIOPSIS, AND HETERANGIUM

1976 • 50 citations

FERAXOTHECA GEN. N., A LYGINOPTERID POLLEN ORGAN FROM THE PENNSYLVANIAN OF NORTH AMERICA

1977 • 27 citations

X. On the microsporangia of the pteridospermeæ, with remarks on their relationship to existing groups

1906 • 25 citations

The Morphology and Relationships of Rhodea, Telangium, Telangiopsis, and Heterangium

1976 • 22 citations

Feraxotheca gen. N., a Lyginopterid Pollen Organ from the Pennsylvanian of North America

1977 • 18 citations

Canipa quadrifida, gen. et sp. nov., a Synangial Fructification from the Middle Pennsylvanian of West Virginia

1969 • 8 citations