Fig. 1 in Taxonomy and biostratigraphy of the elasmobranchs and bony fishes (Chondrichthyes and Osteichthyes) of the lower-to-middle Eocene (Ypresian to Bartonian) Claiborne Group in Alabama, USA, including an analysis of otoliths

Fig. 1. Eocene surface stratigraphy in Alabama and the stratigraphic age of Claiborne Group localities. Vertical red lines indicate the stratigraphic unit(s) exposed at each locality. Abbreviations: E = east; Mbr. = Member; NP = Nannoplankton Zone; W = west.