Middle Jurassic (Bajocian) ammonites from 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
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Bibliographische Detailangaben
Beteilige Person: Imlay, Ralph Willard (VerfasserIn)
Format: Buch
Sprache:Nichtbestimmte Sprache
Veröffentlicht: Washington, DC United States Gov. Print. Off. 1973
Schriftenreihe:Geological Survey professional paper 756
Umfang:IV, 100 S., [47] Bl. Ill., graph. Darst., Kt. 1 Kt.-Beil.