Peramelemorphia

The péramélémorphes ( Peramelemorphia ) include/understand the Bandicoot S and the bilbies, which gathers about all the Marsupiaux Omnivores. All the members of this kind are endemic with the two twin ground masses which are the Australia and the New Guinea and the majority share the characteristics of Bandicoot: a body dodu and arched with a long very soft muzzle, well developed right ears, long legs relatively fine and a fine tail. Their mass varies between 140 G and 2 kg, but the majority of the species have a weight comparable with an average pussy (approximately 1 kg).

The position of the Peramelemorphia in the family of the Marsupiaux diverting and was discussed a long time. There are two morphological characteristics which show the evolutionary line followed by the representatives of this group: the type of leg and teeth. Unfortunately, these two characters go in opposite evolutionary directions!

All members about the Polyprotodontes (which have several pairs of teeth on the jaw lower) whereas the péramélémorphes have 3 pairs of them. This suggests that they evolved/moved of the Dasyuromorphia , marsupial carnivorous. However, they have an unusual characteristic on the level of the feet: the second and the third toe are amalgamated. This condition syndactyle is the characteristic of the Diprotodontes, marsupials Herbivore S which gather the Kangourou S, the Wombat S, the Opossum S and the Koala S.

The attempts to reconstitute the puzzle postulate that the group evolved/moved of the carnivores, thus preserving the teeth of the Polyprotodontes, while developing independently the syndactylie their posterior legs. The opposite point of view leaves the principle that the syndactylie is so unusual that it cannot have evolved/moved twice and that thus, the Bandicoot S would result from a creature Diprotodonte which resembles a Opossum which would have undergone an evolution of the teeth. A third assumption is that the group of bandicoots would have evolved/moved of a group of primitive carnivores, which would have developed a syndactylie posterior legs to specialize in the climbing of the trees, and which the diprotodontes would have evolved/moved of this group by developing their so particular teeth. The recent molecular analyzes did not solve this problem, but strongly suggest that the péramélémorphes are very distant, from a point of view Cladistique, others Marsupiaux.

Classification

This of marsupial is composed of two S:

Order Microbiotheria : (1 species, the Monito LED Assembles South America off)
Order Dasyuromorphia: (marsupial carnivores, 57 species in 3 families)
ORDER PERAMELEMORPHIA (21 species)

Family Peramelidae

Subfamily Peramelinae: Bandicoot S

Western Barred Bandicoot, Perameles bougainville
Eastern Barred Bandicoot, Perameles gunnii
Length-nosed Bandicoot, Perameles nasuta
Serves Bandicoot, Perameles eremiana (extinct)
Golden Bandicoot, Isoodon auratus
Northern Brown Bandicoot, Isoodon macrourus
Southern Brown Bandicoot, Isoodon obesulus
Pig-footed Bandicoot, Chaeropus ecaudatus (extinct)

Subfamily Thylacomyinae: Bilbies

Bilby, Macrotis lagotis
To injure Bilby, Macrotis will leucura (extinct)

Family Peroryctidae New Guinea rainforest bandicoots

Giant Bandicoot, Peroryctes broadbenti
Raffray' S Bandicoot, Peroryctes broadbenti
Mouse Bandicoot, Microperoryctes murina
Striped Bandicoot, Microperoryctes longicauda
Papuan Bandicoot, Microperoryctes papuensis
Rufous Spiny Bandicoot, Echymipera rufescens
Clara' S Echymipera, Echymipera will clara
Menzie' S Echymipera, Echymipera echinista
Common Echymipera, Echymipera kaluba
David' S Echymipera, Echymipera davidi
Seram Island Bandicoot, Rhynchomles prattorum

Order Notoryctemorphia (2 species off Marsupial mole)
Order Diprotodontia (butt 117 species in 11 families, including the Koala, Wombat S, Possum S, Rat kangaroo S, Kangaroo S, Wallabies and others.)

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