In biological classification, family (Latin: familia) is
What does and does not belong to each family is determined by a taxonomist. Similarly for the question if a particular family should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing a family. Some taxa are accepted almost universally, wh...
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In biological classification, family (Latin: familia) is
What does and does not belong to each family is determined by a taxonomist. Similarly for the question if a particular family should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing a family. Some taxa are accepted almost universally, while others are recognised only rarely.
Family, as a rank intermediate between order and genus, is a relatively recent invention.
The taxonomic term familia was first used by French botanist Pierre Magnol in his Prodromus historiae generalis plantarum, in quo familiae plantarum per tabulas disponuntur (1689) where he called families (familiae) the seventy-six groups of plants he recognised in his tables. The concept of rank at that time was still in statu nascendi, and in the preface to the Prodromus Magnol spoke of uniting his families into...
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