EXPLANATION OF PLATES 243 



Plate 27. — Beli, Avalon^ and Grand Canyon Terrane Fossils 



Euryplerus lanceolaius, Salter 



Figure 1. — Photograph after Salter's figure : Monograph of British Fossil Crustacea, 

 order Merostomata, plate 28, figure 2. 



Beltina danai 



Figures 2, 3, 4. — Fragments of folded and broken test associated with Beltina danai. 

 Figure 2 magnified 3 times, figure 4 magnified 3 times. 



Figure 5. — Fragment of an appendage. 



Figure 6. — Probabl}' the broad terminal joints of a swimming apjDendage. 



Aspidella terranovica 

 Figures 7, 8. — Type specimens in collection of the Geological Survey of Canada. 



Brachiopod f 

 Figure 9. — Specimen mentioned in the text. Magnified 2 times. 



Crustacean f 

 Figure 10. — Fi'agment mentioned in the text. Magnified 3 times. 



Hyolithes f 

 Figure 11. — Specimen mentioned in the text. 



Chuaria circularis 



Figures 12, 13. — Two typical specimens as they occur compressed in the shale. 

 Magnified 6 times. 



Aspidella? sp. ? \a^',x£<= 



Figure 14. — A large flattened specimen, showing central a^Dex and obscure radiat- 

 ing lines; 



Figure 15. — Group of specimens illustrating variation in size. All appear to be 

 casts of the inner side- 



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