Early and middle Bajocian (middle Jurassic) ammonites from southern Alaska /
- 出版日期：1984.
- 出版者：U.S. G.P.O.,
- 页数：iv, 38 p. :
- 出版地：Washington, D.C. :
- 第一责任说明：by Ralph W. Imlay.
- 尺寸：29 cm.
- 分类号：a555.81
MARC全文
02h0008277 20080903153130.0 080903s1984 dcuab frb |001|||eng | DLC DLC GIS ; NGL n-us-ak a555.81 Imlay, Ralph Willard, 1908- Early and middle Bajocian (middle Jurassic) ammonites from southern Alaska / by Ralph W. Imlay. Washington, D.C. : U.S. G.P.O., 1984. iv, 38 p. : ill., maps ; 29 cm. Geological Survey professional paper ; 1322 Includes bibliographical references (p. 38) and index. Studies of the early and middle Bajocian ammonites of southern Alaska provide close age determinations and correlations with Europe, Arctic Alaska, Arctic Canada, and the Pacific Coast region in general. Ammonoidea. ; Paleontology $y Jurassic. Professional paper / U. S. Geological Survey ; 1322. aCN bNGL NGL P 254.2 P94 v1322 ; h1 cxhL0801