Eleventh annual report of the United States Geological and Geographical Survey of the Territories : embracing Idaho and Wyoming : being a report of progress of the exploration for the year 1877 . TKcs SinclairSc Son, LitK PLATE 4 Page. Fig. 1. Inoceramus howelli 284 a. View of right side; test removed. Z>. Front view of the same. c. Left valve of another example. All natural size. FlG. 2. EUSPIRA COALYILLENSIS 310 a. Side view; restored from several more or less imperfect Apertural view of the same. Natural size. Fig. 3. Ostrea (Alectryonia) bellaplicata 276 a. View of the conve


Eleventh annual report of the United States Geological and Geographical Survey of the Territories : embracing Idaho and Wyoming : being a report of progress of the exploration for the year 1877 . TKcs SinclairSc Son, LitK PLATE 4 Page. Fig. 1. Inoceramus howelli 284 a. View of right side; test removed. Z>. Front view of the same. c. Left valve of another example. All natural size. FlG. 2. EUSPIRA COALYILLENSIS 310 a. Side view; restored from several more or less imperfect Apertural view of the same. Natural size. Fig. 3. Ostrea (Alectryonia) bellaplicata 276 a. View of the convex ;. Side view of the same example. Natural , also, Plate 8, figs. 2 a and o. Fig. 4. Palitjrus pentangulatus 302 a. Side view of broken example; showing also the matrix of the missing Transverse section of the same. Enlarged. U PLATE 4.


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