Akleistostoma olssoni 3 1/8” or 77.78mm. "Superb Adult"#17771

Akleistostoma olssoni 3 1/8” or 77.78mm. Petuch & Drolshagen, 2011-Extinct Superb Adult Collected in the Fruitville Member (Petuch Unit 4, Lower Beds, Black Layer) of the Tamiami Formation in 1980. Apac Pit, Sarasota County, Sarasota, Florida. Piacenzian Pliocene 2.58-3.0 M.Y.A. Collected and identified by: Melanie Briskin. This shell has color and gloss and the black spotting expected in the black layer.