NO. 24 PTARMIGANIA STRATA RESSER 6 1 / 



PAGE 



Dolxchometopsis lepida, new species 31 



31. Libragene (X i-5). 



32, 33. Holotype cranidium (X I-S). 



Ptarmigania, species undetermined 42 



34. Small cranidium (X 6). 



Ptarmigania aurita, new species 37 



35, 36. Holotype cranidium (X2.5). 



Dolichometopsis stella, new species 32 



37. Holotype pygidium (X 1.5) ■ 



Plate 4 



Ptarmigania exigua, new species 38 



I, 2. Holotype cranidium (X 2). 



3, 4. Cranidium with libragene (X2). 



5. Small cranidium and pygidium (X 6). 



6, 7. Cranidium (X2). 

 8, 9. Pygidium (X 4)- 



10. Libragene (X2). 



Dolichometopsis media, new species 3 2 



11, 12. Holotype pygidium (X 1-5 )• 



Ptarmigania na talis, new species 39 



13, 14. Small cranidium (X3-5)- 



15, 16. Holotype cranidium (X2.5). 



17, 18. Libragenes (X3)- 

 Dolichometopsis alia, new species 3- 



19, 20. Holotype cranidium (X3)- 



21. Cranidium doubtfully referred to species (X 4)- 



Dolichometopsis comis, new species 33 



22, 23. Pygidium (X 1-5 )■ 



24. Holotype and incomplete cranidium (X 1-5) • 



Ptarmigania ornata, new species 39 



25, 26. Small cranidium (X3)- 



27. Cranidium (X2.5). 



28, 29. Libragenes (X3). 



30, 31. Holotype cranidium (X3)- 



32. Cranidium, and Kootenia convoluta (X 2.5). 



Plate 5 



Dolichometopsis poulseni, new species 33 



1, 2. Holotype cranidium (X 1-5 ) ■ 



3, 4. Pygidium (X i-S)- 



5, 6. Thorax and pygidium (X 1-5 )• 



Locality 59c 



7, 8. Cranidium (X T -5)- 



9, 10. Pygidium (X 1-5)- 

 Dolichometopsis propinqna, new species 34 



II, 12. Pygidium (X 1-5)- 



13. Holotype cranidium at left; fragmentary pygidium at lower right; 

 other pygidium Kootenia (X 1-5)- 



