Picture of plate of Promicroceras (Spath, 1925) ammonite fossils. Found in Charmouth, Dorset, England. Creatures existed in the Lower Jurassic Period (190 million years ago; upper Sinemurian age). Common ammonite found in the Black Ven Marl on the coasts of Lyme Regis and Charmouth.
Genus named by Leonard Frank Spath (1882-1957) in 1925.
Thanks to Dale for letting me take this picture.
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