词条 | Ilariidae |
释义 |
| name = Ilariidae | fossil_range = {{fossil range|Late Oligocene|Miocene}} | image = Reconstruction of Nimbadon lavarackorum mother and juvenile - journal.pone.0048213.g002.png | image_caption = Nimbadon lavarackorum mother and juvenile (reconstruction) | regnum = Animalia | phylum = Chordata | classis = Mammalia | infraclassis = Marsupialia | ordo = Diprotodontia | subordo = Vombatiformes | familia = †Ilariidae | familia_authority = Tedford & Woodburne, 1987 | subdivision_ranks = Genus | subdivision = †Ilaria †Kuterintja †Koalemas †Nimbadon }} The Ilariidae are a family of four genera with more than six species of extinct koala-like marsupials. Most ilariids are found in the middle Tertiary faunal assemblages of South Australia but the genus, Nimbadon is found in the Late Oligocene and Miocene portions of Riversleigh.[1] Ilaria illumidens is the best-preserved representative of this extinct clade of vombatiforms. The species is found in the Namba Formation of Late Oligocene age, at Lake Pinpa, South Australia. The material consists of a partial cranium and mandibular fragments with most of the dentition, together with parts of the postcranial skeleton.[2] The other species in this family are known from a few jaw fragments and intact molars attached; they are categorised in a separate family because their teeth structure is unique among Diprotodontia, in having a complicated folding pattern. Ilariids are thought to be the largest marsupials of their time in the Lake Eyre and Tarkarooloo basin. References
1. ^Hand, S. J., et al. "NIMBADON, A NEW GENUS AND THREE NEW SPECIES OFTERTIARY ZYGOMATURINES (MARSUPIALIA: DIPROTODONTIDAE) FROM NORTHERN AUSTRALIA, WITH A REASSESSMENT OF NEOHELOS." (1993). 2. ^http://www.tc.umn.edu/~jansa003/NSF/Fossils2.pdf accessed 2010-05-21 {{Taxonbar|from=Q148200}}{{paleo-marsupial-stub}} 5 : Prehistoric mammal families|Prehistoric vombatiforms|Prehistoric vertebrates of Oceania|Chattian first appearances|Miocene extinctions |
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