Which of the following is an example of the living member of Psilopsida________________?
A. Rhynia
B. Psilophyton
C. Psilotum
D. Cooksonia
Which of the following is an example of the living member of Psilopsida________________?
A. Rhynia
B. Psilophyton
C. Psilotum
D. Cooksonia