Κανονική προβολή Προβολή MARC Προβολή ISBD

Imlay, Ralph W. 1908-

Middle Jurassic (Bajocian) ammonites from eastern Oregon / by Ralph W. Imlay. - Washington: United States Government Printing Office, 1973. - iv, 100 p., 47 plates : ill., taples,. +1 map - 756 .

Conduct maps: Index maps showing general and detailed positions of bajocian ammonite localities in eastern oregon.

Bajocian ammonites of eastern Oregon greatly resemble those of Alaska and Europe, indicate marine connections with Europe, and permit accurate zonal dating in the Pacific Coast region.

Subjects--Topical Terms:
Ammonoidea--Oregon
Paleontology--Jurassic
Paleontology--Oregon

Dewey Class. No.: 564.53