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10 Cards in this Set

  • Front
  • Back
Metatheria
3 Orders
–Diprotodonta [Australasia only]
–Polyprotodonta [Australasia and the Americas]
–Paucituberculata [South America only]
NOT PRIMITIVE ANIMALS
Produce very small young after a short pregnancy, less than the length of the oestrous cycle
Polyprotodonts
carnivores and insectivores
diprotodonts
omnivores and herbivores
Small Marsupials
Polyprotodonts
Narrow-nosed Planigale
Stripe-faced Dunnart
Kultarr
Yellow-footed Antechinus
SMALL MARSUPIALS
Diprotodonts
Pygmy Possum
Feather tail Glider
Honey Possum
MEDIUM MARSUPIALS
Polyprotodonts
Numbat
Phascogale
Tiger Quoll
Long-nosed Bandicoot
Spiny Bandicoot
Bilby
MEDIUM MARSUPIALS
Diprotodonts
Squirrel Glider Greater Glider
Common Ringtail
Green Ringtail
Striped Possum
Common Brushtail
Rufous Bettong
Musky Rat Kangaroo
Quokka
LARGE MARSUPIALS
Polyprotodonts
Tasmanian Devil
Thylacine
LARGE MARSUPIALS
Diprotodonts
Cuscus
Koala
Northern Hairynosed Wombat
Yellow-footed Rock Wallaby Swamp Wallaby
Red-necked Wallaby
Lumholtz’s Tree Kangaroo
Agile Wallaby
Euro
Red Kangaroo
Repro
Birth is not an equivalent process in marsupials and eutherians. Developmental stage and maternal investment at weaning is quite comparable in these 2 groups

Marsupial pattern:
• Reduces risks of pregnancy to mother
• Maximises reproductive flexibility –especially in
unpredictable environments
• Optimises energetic investment by mother
• Is an alternative rather than inferior solution to
the same pressures which lead to evolution of viviparity