期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 278, 期 1724, 页码 3529-3533出版社
ROYAL SOC
DOI: 10.1098/rspb.2011.0486
关键词
Riversleigh; Miocene; metatherians; scincids; molluscivory; convergent evolution
资金
- Australian Research Council [LP0989969, LP100200486, DP1094569]
- Xstrata Community Partnership Programme North Queensland
- Outback at Isa
- Mount Isa City Council
- Queensland Museum
- University of New South Wales
- Environment Australia
- Queensland Parks
- Wildlife Service
- Waanyi people of northwestern Queensland
- Australian Research Council [LP100200486, DP1094569] Funding Source: Australian Research Council
Extinct species of Malleodectes gen. nov. from Middle to Late Miocene deposits of the Riversleigh World Heritage Area, northwestern Queensland, Australia are enigmatic, highly specialized, probably snail-eating marsupials. Dentally, they closely resemble a bizarre group of living heterodont, wet forest scincid lizards from Australia (Cyclodomorphus) that may well have outcompeted them as snail-eaters when the closed forests of central Australia began to decline. Although there are scincids known from the same Miocene deposits at Riversleigh, these are relatively plesiomorphic, generalized feeders. This appears to be the most striking example known of dental convergence and possible competition between a mammal and a lizard, which in the long run worked out better for the lizards.
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