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Dasyuromorphia

From Academic Kids

Dasyuromorphia
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Subclass:Marsupialia
Order:Dasyuromorphia
Families

Thylacinidae
Dasyuridae
Myrmecobiidae

Most carnivorous marsupials belong to the order Dasyuromorphia, including the quolls, dunnarts, Numbat, Tasmanian Devil, and the recently extinct Thylacine. The only exceptions are the omnivorous bandicoots (order Peramelemorphia) and the marsupial moles (which are carnivores but very different and are now accorded an order of their own).

There are three families: two with just a single member, and one, Dasyuridae, with about 55 members.

Unlike herbivores, which tend to become highly specialised for particular ecological niches and diversify greatly in form, carnivores tend to be broadly similar to one another, certainly on the level of gross external form. Just as northern hemisphere carnivores like cats, foxes and weasels are much more alike in structure than than, for example, camels, goats, pigs and giraffes, so too are the marsupial predators constrained to retain general-purpose, look-alike forms—forms which mirror those of placental carnivores. The names given to them by early European settlers reflect this: the Thylacine was called the Tasmanian Tiger, quolls were called native cats, and so on.

The primary specialisation among marsupial predators is that of size: prior to the massive environmental changes that came about with the arrival of humans about 50,000 years ago, there were several very large carnivores, none of them members of the Dasyuromorphia and all of them now extinct. Those that survived into historical times ranged from the wolf-sized Thylacine to the tiny Long-tailed Planigale which at 4 to 6 grams is less than half the size of a mouse. Most, however, tend towards the lower end of the size scale, typically between about 15 or 20 grams and about 2 kilograms, or from the size of a domestic mouse to that of a small domestic cat.

To provide context, the table below also shows the other major branches of the Australidelphia (Australasian marsupial) tree.

Mammals
Monotremata

Placentalia: Xenarthra | Dermoptera | Desmostylia | Scandentia | Primates | Rodentia | Lagomorpha | Insectivora | Chiroptera | Pholidota | Carnivora | Perissodactyla | Artiodactyla | Cetacea | Afrosoricida | Macroscelidea | Tubulidentata | Hyracoidea | Proboscidea | Sirenia

Marsupialia: Didelphimorphia | Paucituberculata | Microbiotheria | Dasyuromorphia | Peramelemorphia | Notoryctemorphia | Diprotodontia

bg:Хищни торбести

cs:Kunovcovit de:Raubbeutler es:Dasyuridae eo:Dasiuro fr:Dasyuridae ja:フクロネコ目 lt:Plėšrieji sterbliniai nl:Dasyuromorphia (taxonomie) pl:Niełazowate pt:Dasyuromorphia

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