I bet you didn't know what hit you
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I bet you didn't know what hit you

by David Tanner, LIAG Institute for Applied Geophysics, Hannover, Germany

This is the posidoniform bivalve species, Posidonia becheri, stuck on the bottom of a 1m thick greywacke bed. The sequence is Lower Carboniferous (Kulm II) flysch, and this poor chap was just sitting there when the turbidite hit and transported him away!