a. [f. prec. + -AL.] = FUCOID A. b.

1

1854.  Murchison, Siluria, viii. (ed. 5), 177. A thick development of fucoidal sandstones.

2

1857.  H. Miller, Test. Rocks, xi. 465. They seemed fucoidal, and might of course belong to any age.

3

1872.  Nicholson, Palæont., 477. The only apparently unequivocal plant of the Lower Cambrian period is the Eophyton … of the ‘Fucoidal Sandstone’ of Sweden.

4