The Chain of Life in Geological Time / A Sketch of the Origin and Succession of Animals and Plants

by Sir John William Dawson

D, Transverse section showing a, Wood-cells, and b, Limit of layer of growth.

Fig. 93.—Group of Devonian Fruits, &c. Middle Devonian, New Brunswick.

A, Cardiocarpum cornutum. B, Cardiocarpum acutum. C, Cardiocarpum Crampii. D, Cardiocarpum Baileyi. E, Trigonocarpum racemosum. E1, E2, Fruits enlarged.

F, Antholithes Devonicus. F1, Fruit of the same. G, Annularia acuminata. H, Asterophyllites acicularis H1, Leaf. K, Cardiocarpum. (? young of A.) L, Pinnularia dispalans.

From Acadian Geology.

Fig. 94.—Structures of the oldest-known Angiospermous Exogen (Syringoxylon mirabile, Dn.). From Eighteen-mile Creek, Lake Erie.

1, Transverse section x 100. 2 and 3, Portions of the same x 300. 4, Longitudinal section x 300. 5, Fragment of duct from the same x 600. 6, Wood cells and medullary ray x 600.