Jurassic (Oxfordian and Late Callovian) ammonites from the western interior region of the United States: marine waters invaded Montana in late Callovian time, advanced southward across Wyoming in early Oxfordian time and persisted in Montana during late Oxfordian time
Saved in:
Bibliographic Details
Main Author: Imlay, Ralph Willard (Author)
Format: Book
Language:English
Published: Washington United States Gov. Print. Off. 1982
Series:United States Geological Survey: Geological Survey professional paper 1232
Subjects:
Physical Description:IV, 44 S., 26 Taf. Ill., Kt.

There is no print copy available.

Interlibrary loan Place Request Caution: Not in THWS collection!