natural system

taxonomy

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June 11, 2026

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Taxonomy is the science of classifying living and extinct organisms. It involves arranging plants and animals into hierarchical groups based on their relationships. The internationally accepted system for naming organisms is the Linnaean system of binomial nomenclature.1

A "natural system" of classification, in biology, is based on morphological and anatomical relationships, considering phylogeny and embryology. This contrasts with earlier, more artificial systems like the one established by Linnaeus based on sexual characteristics.2

The diversity of life is immense, with an estimated 5 to 10 million species, though only about 1.5 million have been described. Classification helps organize this diversity, moving from simple identification keys to more complex systems that reflect evolutionary relationships. This ongoing process aims to understand the intricate connections between all living things.314

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taxonomy
From the Greeks to the Renaissance
…described a large number of natural groups, and, although he ranked them from simple to complex, his order was not an evolutionary one. He was far ahead of his time, however, in separating invertebrate animals into different groups and was aware that whales, dolphins, and porpoises had mammalian characters (that…
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…described a large number of natural groups, and, although he ranked them from simple to complex, his order was not an evolutionary one. He was far ahead of his time, however, in separating invertebrate animals into different groups and was aware that whales, dolphins, and porpoises had mammalian characters (that…
Read More

John Lindley
…whose attempts to formulate a natural system of plant classification greatly aided the transition from the artificial (considering the characters of single parts) to the natural system (considering all characters of a plant).
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…whose attempts to formulate a natural system of plant classification greatly aided the transition from the artificial (considering the characters of single parts) to the natural system (considering all characters of a plant).
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