Classis est categoria biologica qua Carolus Linnaeus utebatur ut biota divideret in classes videlicet vermium, insectorum, piscium, amphibiorum, avium et mammalium.
Vide etiam paginam discretivam: Classis (discretiva).
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/5/59/Categoriae_taxonomicae_la.png/110px-Categoriae_taxonomicae_la.png)
Nexus externi
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