Class (taxa)Definition (http://www.biology-online.org/dictionary/Class) In biological classification of organisms, a class is a major taxonomic rank below the phylum (or division) and above the order. For example, class Mammalia belongs to phylum Chordata. Class Mammalia is comprised of various orders such as Chiroptera (bats), Primates (apes), Carnivora (dogs, cats, jaguar, bears, etc.), Cetacea (whales), Proboscidea (elephants), and many others. (Biology online) Preferred Units: N/A Scope Note: N/A This term is used for the following terms: classis
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