Natural kinds

Natural science is based on the premise that natural kinds exist, that is, types of entities with common, fixed characteristics called natures.  The natural world is the combination and interaction of all natural kinds.  Philosophically, this is a form of essentialism.

Naturalism is the position that the natural world is all that natural science can acknowledge (or all that exists).  This would exclude the origin of natural kinds from scientific consideration.  Christians (should) believe that all natural kinds were created by God.

Elemental naturalism is the additional premise that all natural kinds are minimal elements such as atoms, forces, chemical elements, genes, etc.  Universal elemental naturalism is the additional premise that the only real natural kinds are the most elemental kinds and everything else is derivable from these.  Evolutionary naturalism is a form of universal elemental naturalism in which the most elemental kinds plus deep time result in the present natural world.