132 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



DESCRIPTION OF PLATE 11 



PAGE 



Weedia tuberosa Walcott 108 



Fig. I. (Natural size.) View of a weathered section of one of the 

 large spheroidal tubercles, showing something of the lami- 

 nated structure. U. S. National Museum, Catalogue No. 

 60703. 

 2. (Natural size.) View of the weathered surface of a group 

 of large tubercles on the upper surface of a layer of lime- 

 stone. U. S. National Museum, Catalogue No. 60704. 

 The specimens represented by figs, i and 2 are from locality 400: 

 Algonkian : Siyeh limestone ; south side of Gunsight Pass, Glacial 

 National Park, Montana. 



Kinneyia simulans Walcott 107 



Fig. 3. (Natural size.) View of upper surface of a specimen in which 

 the irregular lamellae e.xtend almost vertically through the 

 layer. U. S. National Museum, Catalogue No. 60705. 

 The specimen represented by fig. 3 is from locality 400c: Algon- 

 kian: Newland limestone; 8 miles (12.8 km.) west of White Sul- 

 phur Springs, Meagher County, Montana. 



