The Kimmeridian age of the Late/Upper Jurassic period dates between 152.1 and 157.3 million years ago. Poo-sta Anyone?(Lumbricaria with Crinoid Inclusions) Poop Loops(Lumbricaria with Crinoid Inclusions) Lumbricaria from Bavaria(Lumbricaria with Crinoid Inclusions) My Heart Belongs to Poo(Lumbricaria with Crinoid Inclusions) Crinoid Crunchies(Lumbricaria with Crinoid Inclusions) Fossil Poo and a Brittle Star Too!(Lumbricaria and Brittle Star) Abstract Anal Art(Lumbricaria) Lovely Lumbricaria(Lumbricaria) Look Mom!(Large and Small Lumbricaria)