Geology, Floristics and Paleoecology of Late Devonian Coal Swamps from Appalachian Laurentia (U.S.A.)

S. E. Scheckler

1986

Article

Annales de la Société Géologique de Belgique 109:209-222

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Taxa discussed in this work:

• Archaeopteris
• Callixylon
• Condrusia
• Progymnospermophyta
• Progymnospermopsida
• Xenotheca

Taxonomy:

• Callixylon belongs to Archaeopteridaceae - Beck (1962)