Page:Canadian Alpine Journal I, 2.djvu/98

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248
Canadian Alpine Journal

DORYPGE (KOOTENIA) DAWSONI Walcott

 Fig. 9. A large specimen. Not very abundant, but often mistaken for Neolenus serratus.


DESCRIPTION OF PLATE IV.

ZACANTHOIDES SPINOSUS (Walcott)

 Fig. 1. A large specimen partially crushed in the shale. A common species.

BATHYURISCUS ROTUNDATUS (Rominger)

 Fig. 2. The average size of this species is about one-half that of this figure. It is quite abundant.

NEOLENUS SERRATUS (Rominger)

 Fig. 3. A common species.

OGYGOPSIS KLOTZI (Rominger)

 Fig. 4. This is the largest and most abundant trilobite in the fossil bed.