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GEOLOGICAL SURVEY, CANADA PAPER 47-24

NATHORSTITES FAUNA

LIARD FORMATION

Figures 1, 2. Paratrachyceras aylardi n. sp. Holotype, 9549.

Figure 3. Paratrachyceras tetsa n. sp. Holotype, 9545.

Figure 4, 5. Nathorstites mcconnelli var. lenticularis Whiteaves. Holotype, 4721.
Figure 6. Dawsonifes canadensis Whiteaves. Holotype, 4718.

Figure 7, 8. Nathorstites mcconnelli Whiteaves. Holotype, 4716.

PLATE VIII