Contribution
The Callistophytaceae (Pteridospermopsida): I. Vegetative structures
Rothwell, Gar W.
Palaeontographica Abteilung B Band 151 Lieferung 4-6 (1975), p. 171 - 196
publié: May 28, 1975
Mots-clefs
Callistophytaceae, vegetative structures • Pteridospermopsida