-
seshufenensis Sp. nov
Valid Chen in Chen,
Zhang & Yang
Permian China A
callipterid seed fern.
Callixylon seamrogia Sp. nov Durieux, Decombeix, Harper, Ramel...
- Nick; Skema, Viktoras; Blake,
Bascombe M.; Cecil, C.
Blaine (2013). "
Callipterid peltasperms of the
Dunkard Group,
Central Appalachian Basin". International...
-
Calamites C. sp.
Sphenophyte (horsetail) fragments.
Callipteris C. sp. "
Callipterid" seed ferns.
Cathaysiopteris C.
yochelsonii Large gigantopterid leaves...
- JSTOR 1299305. Mamay,
Sergius H. (1966). "Tinsleya, a new
genus of seed-bearing
callipterid plants from the
Permian of north-central Texas".
Geological Survey Professional...
