Author: Imlay R.W.,
Title: Ammonites of Early Cretaceous age (Valanginian and Hauterivian) from the Pacific Coast States
Description: 1960. In folio, pp. 106 with 20 pls. with facing captions, 3 figs, 4 tabs and 1 chart in pocket. US Geol. Surv. Prof. Pap.,334-F

Keywords: ammonites shells fossils paleontology Alaska


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