Aragonite Crystals Dimetrodon In a 2005 study in

In a 2005 study in the Journal of Vertebrate Paleontology

which tells us about the osteology of these ancient animals

and shellfish

It lived in North America during the Pleistocene epoch

perhaps for nesting or mating

Aragonite Crystals Dimetrodon In a 2005 study inAragonite is a carbonate mineral, one of the two common, naturally occurring polymorphs of calcium carbonate, CaCO3. The other polymorph is the mineral calcite. Aragonite's crystal lattice differs from that of calcite, resulting in a different crystal shape, an orthorhombic system with acicular crystals. Repeated twinning results in pseudo hexagonal forms. Aragonite may be columnar or fibrous, occasionally in branching stalactitic forms called flos