Note 1119 — Chapter XXV
Reading edition
Williamson (89) A. p. 162. The term Rachiopteris was adopted by Williamson for petrified petioles from the Coal-Measures which he believed to be filicinean.
Reading edition
Williamson (89) A. p. 162. The term Rachiopteris was adopted by Williamson for petrified petioles from the Coal-Measures which he believed to be filicinean.