The four major groups of vascular plants are:
I. monilophytes, lycophytes, and progymnosperms
II. flowering plants
III. rhyniophytes, zosterophyllophytes, and trimerophytes
Which of the following is the correct sequence—from earliest to most recent—of the time period in which they were dominant on Earth?
a. I, II, III, IV
b. I, III, IV, II
c. III, I, IV, II
d. III, IV, II, I
e. IV, III, I, II
17. Phylum Rhyniophyta; p. 402; difficult; ans: c
Which of the following statements about the phylum Rhyniophyta is FALSE?
b. They lived during the mid-Silurian.
c. They were differentiated into stems, roots, and leaves.
d. They had dichotomously branching stems.
e. They were homosporous.
18. Phylum Rhyniophyta; p. 402; moderate; ans: b
Cooksonia, a member of the phylum ______, is the oldest known ______.
a. Psilotophyta; fern
b. Rhyniophyta; vascular plant
c. Rhyniophyta; protracheophyte
d. Zosterophyllophyta; vascular plant
e. Zosterophyllophyta; protracheophyte