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A Handbook of Biology
GËÑÜS
KINGDOM
PHYLUM
CLASS
ORDER
FAMILY
Less
Inclusive
Most
Inclusive
GENUS
SPECIES
Most
Inclusive
Less
Inclusive
Number of common
characters decreases
It is the aggregate
of closely related
species. E.g. Potato,
tomato & brinjal are
species of genus
Solanum. Lion,
leopard & tiger are
species of genus
Panthera. This
genus differs from
genus Felis (genus
of cats).
FÅMÏLÝ
It is a group of closely related genera.
E.g. Family Solanaceae includes Genus Solanum, Genus Petunia
and Genus Datura. Family Felidae includes Genus Panthera and
Genus Felis.
ØRDËR
It is the assemblage of related families.
E.g. Order Polymoniales includes Family Convolvulaceae and
Family Solanaceae. Order Carnivora includes Family Felidae &
Family Canidae.
ÇLÅSS
It is the assemblage of related orders.
E.g. Order Primata, Carnivora etc. is placed in class Mammalia.
PHÝLÜM (DÏVÏSÏØÑ ÏÑ ÇÅSË ØF PLÅÑTS)
It is the assemblage of related class.
E.g. Classes Amphibia, Reptilia, Aves, Mammalia etc. come under
phylum Chordata.