LAMELLIBRANCHIATA. 
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WHERE LOCATED. 
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, | A. N.S. Phil. & Trenton, N J. 
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(157) 
GEOLOGICAL AGE. 
Up. Helderb........ 
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Glintony tec seers 
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LOCALITY. 
Louisville, Ky. 
Near Louisville, Ky. 
Burlington, Ia. 
| Wilmington, Ohio. 
Beloit, Wis. 
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| Burlington & Holmdel, N. J. 
Haddonfield & Freehold, N. J. 
Freehold, N. J. 
| Crosswicks, N. J. 
Holmdel, N. J. 
New Jersey. 
Freehold & and Holmdel, N. J. 
Crosswicks, N. J. 
Atlantic City, N. J. 
Up. Freehold, N. J. 
Haddonfield, N. J. 
Atlantic City, N. J. 
? New Jersey. 
Up. Freehold, N. J. 
Burlington, N. J. 
Belle Fourche River, Black Hills. 
Wravetlyecs-rsteccsos | 
PrtassiGres.-seseceacee 
s|UkaSSICoN-ececeesenes 
Cheyenne River, Beaver Creek, B. H. 
Near Louisville, Ky. 
Burlington, Ia. 
Pah-Ute Mts., Neb. 
Beaver Creek, Black Hills. 
Old Woman’s Fork of Cheyenne. 
Uinta Mts., Utah. 
