Description
Item Description:Title from title screen (viewed October 9, 2014).
"Studies of the Late Jurassic ammonites of Alaska enables fairly close age determinations and correlations to be made with Upper Jurassic ammonite and stratigraphic sequences elsewhere in the world."
Physical Description:1 online resource (iv, 40 pages) : illustrations, maps.
Bibliography:Includes bibliographical references (pages 36-38) and index.