Microfauna vs. Macrofauna

Microfaunanoun

The smallest of the faunal size divisions, including mainly microorganisms but also sometimes applied to the tiniest species of animal groups such as ticks, insects, etc.

Microfauna

Microfauna (Ancient Greek mikros + New Latin fauna ) refers to microscopic animals and organisms that exhibit animal-like qualities. Microfauna are represented in the animal kingdom (e.g., nematodes, small arthropods) and the protist kingdom (i.e., protozoans).

Macrofaunanoun

Any large animal that is not quite large enough to be considered megafauna, but larger than microfauna. Some include larger species of insects and annelids in this group.