Author: Biffi, U., & Manum, S.B., 1988.:
Title: Late Eocene-Early Miocene dinoflagellate cyst stratigraphy from the Marche region (Central Italy).
Description: Boll. Soc. Paleont. Ital., 27(2): pp. 163-212, 249 microphotos on 15 pls., 11 illus. in text. 4to. Plain wrs.

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