130 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



DESCRIPTION OF PLATE 10. 



PAGE 



Newlandia lamellosa Walcott 106 



Fig. I. (Natural size.) Vertical section of a specimen having very 

 finely laminated structure. U. S. National Museum, Cata- 

 logue No. 60702. 

 2. (Natural size.) Upper surface of the specimen represented 

 by fig. I. 

 The specimen represented by figs, i and 2 is from locaHty 400c: 

 Algonkian: Newland limestone; 8 miles (12.8 km.) west of White 

 Sulphur Springs, Meagher County, Montana. 



Collenia ? frequens (Walcott) 113 



Fig. 3. (About one-thirtieth of natural size.) Upper surface and sec- 

 tion of a group of cylindrical forms. After photograph by 

 Bailey Willis. 

 Locality : Algonkian : Siyeh limestone ; Little Kootna Creek, 

 Chief Mountain quadrangle, Montana. 



