ANIMAL KINGDOM
CLASS MAMMALIA
CLASSIFICATION-
SUBCLASS PROTOTHERIA
SUBCLASS THERIA
PROTOTHERIA:
----->MOST PRIMITIVE ANIMALS
BESIDES EGG LAYING HABIT THEY HAVE SEVERAL REPTILIA CHARACTER INCLUDING A CLOACA
------>INCLUDES ONE ORDER:MONOTREMATA
NOTE:CLOACA-USEFUL IN EGESTION,REPRODUCTION,EXCRETION
ORNITHORYNCUS(PLATYPUS)
TACHYGLOSSUS(ECHIDNA)-MONOTREME
SUBCLASS THERIA:
PRODUCES YOUNG ONES
INFRA-CLASS METATHERIA -THESE INCLUD EONLY ONE ORDER:MARSUPALIA
PHASCOLARACTUS(KOALA)
THESE ANIMALS ARE NOW FOUND ONLY IN AUSTRALIA,NEW GUINEA ,SOUTH AMERICA
FEMALES HAVE A MARSUPIAM OR BROOD POUCH FOR REARING YOUNG ONES(REDKANGAROO)
INFRA-CLASS EUTHERIA-PROVIDED WITH A TRUE PLACENTA,HENCE CALLED AS PLACENTAL MAMMMALS.
EMBRYOS ARE RETAINED IN WOMB UNTIL AN ADVANCED AGE
ORDERS:
INSECTIVORA:TESTES ABSENT
EX: SHREWS,MOLES AND HEDGEHOGS
DERMAPTERA:HAIRY SKIN FOLDS EXTENDS LIKE PARACHUTE.
EX: FLYING LEMURS
CHIROPTERA:FLYING MAMMALS
EX: BATS,FLYING FOXES
EDENTATA:TOOTHLESS
EX: ARMADILLOS (SLOTHS,ANTEATERS0
PRIMATES:HIGHLY DEVELOPED BRAINS
EX: APES,LORIS,MONKEYS,HUMANS
RODENTIA:ONE PAIR OF INCISORS IN EACH JAW
NO CANINES
EX: RATS,SQUIRRELS,ETC...
LAGAMORPHA:TWO PAIR OF INCISORS IN UPPER JAW,ONE PAIR IN LOWER JAW
NO CANINES
EX: RABBITS
CETACEA:FISH LIKE BODY
WELL DEVELOPED FOR AQUATIC LIFE
EX: WHALES,DOLPHINS,ETC...
CARNIVORA:STRONG JAWS
POINTED CANINES
EXAMPLES:CHEETAH ,LION,SEALS,WALRUS,CAT,ETC...
SIRENIA:HERBIVOROUS AQUATIC MAMMALS
EXAMPLES:MANATEE,SEA COWS,ETC...
PERRISODACTYLA:HERBIVOROUS
ODD TOED HOOFED MAMMALS
EX:HORSE,ZEBRO,RHINOCEROS,ETC...
ARTIODACTYLA:HERBIVOROUS EVEN TOED HOOFED MAMMALS
EX:COW,SHEEP,GOATS,ETC...