Peramelemorphia
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Peramelemorphia Temporal range:
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A short-nosed bandicoot (Isoodon spp.) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Infraclass: | Marsupialia |
Clade: | Agreodontia
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Order: | Peramelemorphia Ameghino, 1889 |
Families | |
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The
Phylogeny
Placement within Marsupialia
The position of the Peramelemorphia within the marsupial family tree has long been puzzling and controversial. There are two morphological features in the order that appear to show a clear evolutionary link with another marsupial group: the type of foot, and the teeth. Unfortunately, these clear signposts point in opposite directions.[2]
All members of the order are polyprotodont (have several pairs of lower front teeth)—in the case of the Peramelemorphia, three pairs. This suggests that they have evolved within
Attempts to resolve this puzzle include the view that the bandicoot group evolved from the carnivores, retaining the polyprotodont dentition, and independently evolving a syndactyl hind foot; the contrary view that syndactyly is so unusual that it is unlikely to have evolved twice and therefore the bandicoot group must have evolved from a possum-like diprotodont creature, and re-evolved its extra teeth. A third view suggests that the bandicoot group evolved from a primitive carnivore, developed the syndactylous hind foot as a specialisation for climbing, and the diprotodonts then split off and evolved the two-tooth jaw that gives them their name. Recent molecular level investigations do not so far appear to have resolved the puzzle, but do strongly suggest that whatever the relationship of the bandicoot group to the other marsupial orders may be, it is a distant one.[4]
Relationships within Peramelemorphia
Recent molecular analyses have resulted in a
Meredith 2008[4] | Upham et al. 2019[5][6] | Álvarez-Carretero et al. 2022[7][8] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Fossil record
Many specimens of modern peramelemorphian (e.g. Perameles spp. and Isoodon spp.) have been recovered in the fossil record from
It was not until 1976 that Archer and Wade described the next fossil bandicoot. A single upper molar was recovered from the Bluff Downs fossil site, Allingham Formation, in northern Queensland, also Pliocene in age. The tooth was similar to that of species of Perameles, and was therefore named Perameles allinghamensis.[11]
In 1995, the first
In 1997, Muirhead, Dawson and Archer described a new species of Perameles, Perameles bowensis, from teeth recovered from two Pliocene fossil localities, Bow and Wellington Caves.[14] The same species was later reported in 2000 from Chinchilla, Queensland, by Mackness and colleagues.[15] In 2002, Price described a new species Perameles, Perameles sobbei, from the Darling Downs (Pleistocene in age), south-eastern Queensland. This species was represented by a lower jaw and a few isolated lower molars.[16] Additional material were later described in 2005 from the same site, including upper molars.[17]
A second species of Yarala, Yarala kida, was described in 2006 by Schwartz. This species was recovered from Kangaroo Well, a late Oligocene site from the Northern Territory in Australia. This species is thought to be even more primitive than Yarala burchfieldi.[18]
The second fossil skull of any fossil peramelemorphian was also recovered from Miocene sites of Riversleigh. In fact, more than one skull of this new species was found (and several lower and upper jaws), and was significantly different from any other bandicoot to erect a new genus, Galadi. The species was named Galadi speciosus by Travouillon and colleagues. It was short-snouted unlike modern bandicoots suggesting that it was more carnivorous than its omnivorous modern relatives. Its relationship to other bandicoots is unclear, but it was likely to be less primitive than Yarala but more primitive than living bandicoots.[19] An additional three species of Galadi were later described in 2013 and named Galadi grandis, Galadi amplus and Galadi adversus.[20]
Gurovich et al. (2013) described a new species of mouse-sized bandicoot from Riversleigh and from Kutjamarpu, Southern Australia. The species, named
The oldest modern bandicoot (peramelid) and the oldest bilby (Thylacomyid) were later discovered by Travouillon et al., 2014 from Riversleigh World Heritage Area, from middle Miocene fossil deposits (around 15 million years old). The peramelid,
The first record of sexual dimorphism (difference in size between males and females) in a fossil bandicoot was reported from two new species from Riversleigh (Travouillon et al. 2014). Named
See also
References
- ^ Aplin, K.P., Helgen, K.M., Lunde, D.P., 2010. A review of Peroryctes broadbenti, the giant bandicoot of Papua New Guinea. . American Museum Novitates 3696, 1-41.
- ^ Gordon, G., Hulbert, A.J., 1989. Peramelidae, In: Walton, D.W. (Ed.), Fauna of Australia. . Australian Government Publishing Service, Canberra, pp. 603–624.
- ^ Strahan, R. 1995. Mammals of Australia. Washington, D.C.: Smithsonian Institution Press.
- ^ PMID 18328736.
- PMC 6892540.
- .
- .
- .
- ^ Rich, T. H, Archer, M., Hand, S. J., Godthelp, H., Muirhead, J., Pledge, N. S., Flannery, T. F., Woodburne, M. O., Case, J. A., Teford, R. H., Turnbull, W. D., Lundelius, E. L.jr., Rich, L. S. V., Whitelaw, M. J., Kemp, A., & Rich, P. V. 1991. Australian Mesozoic and Tertiary terrestrial mammal localities, Appendix 1. Pp. 1005-1058 in P. Vickers-Rich, Monaghan J. M., R. F. Baird & T. H. Rich (eds), Vertebrate Palaeontology of Australia. Pioneer Design Studio and Monash University Publications Committee, Melbourne.
- ^ Stirton, R. A. 1955. Late Tertiary marsupials from South Australia. Records of the South Australian Museum, 11, 247– 267.
- ^ Archer, M. & Wade, M. 1976. Results of the Ray E. Lemley expeditions, part 1: The Allingham Formation and a new Pliocene vertebrate fauna from northern Queensland. Memoirs of the Queensland Museum, 17, 54–58.
- ^ Muirhead, J. & Filan, S. L. 1995. Yarala burchfieldi, a plesiomorphic bandicoot (Marsupialia, Peramelemorphia) from Oligo-Miocene deposits of Riversleigh, northwestern Queensland. Journal of Paleontology, 69(1), 127-134.
- ^ Muirhead, J. 2000. Yaraloidea (Marsupialia, Peramelemorphia), a new superfamily of marsupial and a description and analysis of the cranium of the Miocene Yarala burchfieldi. Journal of Paleontology, 74(3), 512-523.
- ^ Muirhead, J., Dawson, L. & Archer, M. 1997. Perameles bowensis, a new species of Perameles (Peramelomorphia, Marsupialia) from Pliocene faunas of Bow and Wellington caves, New South Wales. Proceedings of the Linnean Society of New South Wales, 17, 163–174.
- ^ Mackness, B. S., Wroe, S., Muirhead, J., Wilkinson, C. & Wilkinson, D. 2000. First fossil bandicoot from the Pliocene Chinchilla Local Fauna. Australian Mammalogy, 22, 133– 136.
- ^ Price, G. J. 2002. Perameles sobbei, sp. nov. (Marsupialia, Peramelidae), a Pleistocene bandicoot from the Darling Downs, south-eastern Queensland. Memoirs of the Queensland Museum, 48, 193-197.
- ^ Price, G. J. 2005. Fossil bandicoots (Marsupialia, Peramelidae) and environmental change during the Pleistocene on the Darling Downs, southeastern Queensland, Australia. Journal of Systematic Palaeontology, 4, 347-356.
- ^ Schwarz, L. R. S. 2006. A new species of bandicoot from the Oligocene of northern Australia and implications of bandicoots for correlating Australian Tertiary mammal faunas. Palaeontology, 49, 991–998.
- ^ K.J. Travouillon; Y. Gurovich; R.M.D. Beck; J. Muirhead (2010). "An exceptionally well-preserved short-snouted bandicoot (Marsupialia; Peramelemorphia) from Riversleigh's Oligo-Miocene deposits, northwestern Queensland, Australia". Journal of Vertebrate Paleontology 30 (5): 1528–1546. doi:10.1080/02724634.2010.501463
- ^ K. J. Travouillon, Y. Gurovich, M. Archer, S. J. Hand and J. Muirhead (2013). "The genus Galadi: three new bandicoots (Marsupialia, Peramelemorphia) from Riversleigh’s Miocene deposits, northwestern Queensland, Australia". Journal of Vertebrate Paleontology 33 (1): 153–168. doi:10.1080/02724634.2012.713416
- ^ Gurovich, Y., Travouillon, K.J., Beck, R.M.D., Muirhead, J., Archer, M., 2013. Biogeographical implications of a new mouse-sized fossil bandicoot (Marsupialia: Peramelemorphia) occupying a dasyurid-like ecological niche across Australia. Journal of Systematic Palaeontology.
- ^ Travouillon, K.J., Beck, R.M.D., Hand, S.J., Archer, M. (2013). "The oldest fossil record of bandicoots (Marsupialia; Peramelemorphia) from the late Oligocene of Australia". Palaeontologia Electronica. 16 (2): 13A 52p.
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: CS1 maint: multiple names: authors list (link) - ^ Travouillon, K.J., Hand, S. J., Archer, M., and Black, K. H., 2014. Earliest modern bandicoot and bilby (Marsupialia, Peramelidae and Thylacomyidae) from the Miocene of the Riversleigh World Heritage Area, northwestern Queensland, Australia. Journal of Vertebrate Paleontology 34:375-382.
- ^ Travouillon, K. J., Archer, M., Hand, S. J. and Muirhead, J., 2014. Sexually dimorphic bandicoots (Marsupialia: Peramelemorphia) from the Oligo-Miocene of Australia, first cranial ontogeny for fossil bandicoots and new species descriptions. Journal of Mammalian Evolution. doi:10.1007/s10914-014-9271-8
- OCLC 62265494.