Κανονική προβολή Προβολή MARC Προβολή ISBD

Imlay, Ralph W. 1908-

Stratigraphic distribution and zonation of Jurassic (Callovian) ammonites in southern Alaska / by Ralph W. Imlay. - Washington: United States Government Printing Office, 1975. - iii, 28 p., 6 plates : ill., maps, tables ; 29 cm. - 836 .

Includes bibliographical references (p. 25-26) and index (p. 27-28).

Studies of callovian ammonites from southern Alaska provide correlations with lower and middle callovian ammonite zones of Europe.

Subjects--Topical Terms:
Geology, Stratigraphic--Jurassic
Ammonoidea--Alaska
Geology--Alaska

Dewey Class. No.: 564.5