LIST OP AMERICAN FORMATIONS. 



1513 



Ca1 Head limestone, Black River or Rich- 

 mond, Manitoba. 



•'•iimiion, Upper Medinan, On- 

 tario and New York. 



formation, Trenton, Tennessee, 

 Kentucky, etc. 

 Cayu or epoch, Silurian. 



rville dolomite. Upper Niagaran, 

 Ohio. 



me (=Murfrcesbo ro), 

 Stones River, Tennessee. 

 Chambersburg formation, Chazyan-Mo- 

 hawkian, Pennsylvania, Maryland, and 

 Virginia. 

 Champlainic (=Ordovicic) system. 

 Channahon limestone, Upper Medinan, 



Illinois, etc. 

 Charette limestone, Middle Ordovician, 

 Missouri. 



leton formation, Richmond, Anti- 

 costi Island, Quebec. 

 Chazy shales (=Aylmer), Chazyan, Cana- 

 da. 

 Chazyan series or epoch, Lower Ordo- 

 vician. 



dtepec limestone, Ozarkian, Ala- 

 bama. 



ber ampbibolites, Ordovician (?), 

 Massachusetts. 



go group. See Lockport. 

 Chickamauga limestone, Stones River to 

 ( !incinnatian, Tennessee, Alabama, etc. 

 Chicotte formation, Anticostian, Anti- 



costi Island, Quebec. 

 Chimneyhill limestone, Upper Medinan, 



Oklahoma. 

 Cincinnatian series or epoch, Upper Or- 

 dovician. 



Lei series, Quebec group, Canada. 

 Clarksville division (of Waynesville), 



Richmond, Ohio Valley. 

 Clermont shale, Richmond, Iov v -a and 



Minnesota. 

 Cliff limestone, Niagaran, Ohio Valley, 

 o limestone, Niagaran, West Ten- 

 nessee. 

 Clinch Mountab ie See Clinch. 



h sandstone, 1 pper Medinan, Ten- 

 nessee and \ ii 



in group or stage, L< 

 tie Island beds, Bla , On- 



tario. 



[uid series, Silurian, No* 



■ kill (Coralline) waterlime, Upper 

 Cayugan, New York. 



Cobscook (Bay) series, Silurian, Maine, 

 (ysville marble, Cambrian-Ordovi- 

 cian, Maryland. 



Cococonk limestone, Ordovician, Ontario. 



Codorus limestone, Ordovician, Pen 

 vania. 



: >> 'Is, Silurian, Iowa. 



Colesburg terrane, Silurian, Iowa. 



;e Hill limestone, Maysville, Cen- 

 tral Tennessee. 



Collingwood black shales, Trenton, On- 

 tario. 



Conooocheague limestone, Upper Cam- 

 brian or Ozarkian, Pennsylvania, Mary- 

 land, etc. 



Conway schist, Ordovician (?), Massachu- 

 setts. 



Coos series, Silurian (?), New Hampshire. 



Coplay limestone, Canadian, Pennsyl- 

 vania. 



Copper Ridge chert, Ozarkian, Virginia 

 and Tennessee. 



! beds (Upper and Lower) Niagaran, 

 Wisconsin. 



Coralline limestone (=Cobleskill) Silu- 

 rian, New York. 



Cornishville member of Perryville, Tren- 

 ton, Kentucky. 



Cornwall limestone, Silurian, New York. 



Corryville beds, Maysville, Ohio Valley. 



Cotter limestone, Canadian, Arkansas. 



Covington group, = Cincinnatian. 



Crab Orchard formation, Clinton, Eastern 

 Kentucky. 



Croasdale quartzite, Silurian, New Jer- 

 sey. 



Crown Point limestone, Chazyan, New 

 York. 



tal City sandstone (=St. Peter) Big 

 Buffalo series, Missouri. 



• rla id Head shale, Trenton, New 

 York. 



Cumberland sandstone, Richmond, Ken- 

 tucky. 



Curdsville limestone, Trenton, Ken- 

 tucky, Tennessee and Ontario. 



, iana formation, Trenton, Ohio 

 Valley. 



Cyrene member of Edgewood, I 

 dinan, Illinois and Missouri. 

 ia schist, Pre Silurian, Alaska. 



