Churkin, Michael <br/><br/>
Stratigraphy, structure, and graptolites of an Ordovician and Silurian sequence in the Terra Cotta Mountains, Alaska Range, Alaska / 
 Geology, graptolites of Ordovician and Silurian sequence, Terra Cotta Mountains, Alaska 
by Michael Churkin, Jr., and Claire Carter 
 - Washington, D.C. :  U.S. Geological Survey,  1996 
 - v, 84 p. :  ill., map ;  28 cm. 
 - U.S. Geological Survey professional paper ;  Pap.no.1555 .
<br/><br/> Includes four folded plates in pockets 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graptolites--Alaska--Terra Cotta Mountain<br/>Paleontology--Ordovician<br/>Paleontology--Silurian<br/>Animals, Fossil--Alaska--Terra Cotta Mountains<br/>Geology--Alaska--Terra Cotta Mountains<br/>Geology, Stratigraphic--Ordovician<br/>Geology, Stratigraphic--Silurian
<br/><br/><label>Dewey Class. No.: </label>563.993