Latreille was significant as the first person to attempt a natural classification of the arthropods.

When an attempt was made to introduce a more natural, morphology-based classification of the fungi in the 1980s and 1990s, the order was still overlooked.

The Phylogenetic relationships and natural classification of the Vespoidea (Hymenoptera).

Phylogeny became a new principle as "natural" classifications became classifications reflecting, not just similarities, but evolutionary relationships.

Based on molecular data this is not a natural classification however, but the ciscoes are polyphyletic, comprising two different lineages within the freshwater whitefishes.

Between 1650 and 1700 CE there was a move from the utilitarian back to a scientific natural classification based on the characters of the plants themselves.

He was the first to publish the concept of plant families as we know them, a natural classification, in which groups of plants with associated common features were described.

A treatise on malacology, or the natural classification of shells and shellfish.

With a move to a more natural classification of fungi, Corticium rolfsii was transferred to Athelia in 1978.

They believed that there was a "natural" classification that was superior to "artificial" ones.