Lobolith, Crinoid Bulb Float, holdfast Alamosaurus It is believed that crocodiles

It is believed that crocodiles originated from bipedal reptiles that lived during the Late Triassic Period

reaching lengths up to 10 feet

5 feet) long

Brontosaurus

Lobolith, Crinoid Bulb Float, holdfast Alamosaurus It is believed that crocodilesThis replica Lobolith comes from the Devonian of Oklahoma. Most crinoids were held in place by a holdfast, root like system. A few species were bottom bobbers and floaters. These unique crinoids are believed to have floated with the currents with the calyx (head) facing down. The Lobolith was chambered and filled with some form of gas produced by the crinoid. The gas caused the crinoid to float and could probably be regulated to allow the crinoid to