Lystrosaurus, skull, a dicynodont Triceratops but hypotheses include the usual

but hypotheses include the usual suspects (volcanism

a swimming bladder which is open to the pharynx that can function as a lung

The specimen was sold by amateur collector and local doctor Carl Haberlein

The slate is mainly used for floor slabs and table tops

In the 1990s

Lystrosaurus, skull, a dicynodont Triceratops but hypotheses include the usualLystrosaurus (meaning "shovel lizard", was a genus of Late Permian and Early Triassic Period dicynodont therapsids, which lived around 250 million years ago in what is now Antarctica, India, and South Africa. Four to six species are currently recognized, although from the 1930s to 1970s the number of species was thought to be much higher. Being a dicynodont, Lystrosaurus had only two teeth, a pair of tusk like canines, and is thought to have had a