title: New Mid-Cretaceous (latest Albian) dinosaurs fromWinton, Queensland, Australia.
abstract: BACKGROUND
  Australia's dinosaurian fossil record is exceptionally poor compared to that of other similar-sized continents. Most taxa are known from fragmentary isolated remains with uncertain taxonomic and phylogenetic placement. A better understanding of the Australian dinosaurian record is crucial to understanding the global palaeobiogeography of dinosaurian groups, including groups previously considered to have had Gondwanan origins, such as the titanosaurs and carcharodontosaurids.
  
  
  RESULTS
  We describe three new dinosaurs from the late Early Cretaceous (latest Albian) Winton Formation of eastern Australia, including; Wintonotitan wattsi gen. et sp. nov., a basal titanosauriform; Diamantinasaurus matildae gen. et sp. nov., a derived lithostrotian titanosaur; and Australovenator wintonensis gen. et sp. nov., an allosauroid. We compare an isolated astragalus from the Early Cretaceous of southern Australia; formerly identified as Allosaurus sp., and conclude that it most-likely represents Australovenator sp.
  
  
  CONCLUSIONS
  The occurrence of Australovenator from the Aptian to latest Albian confirms the presence in Australia of allosauroids basal to the Carcharodontosauridae. These new taxa, along with the fragmentary remains of other taxa, indicate a diverse Early Cretaceous sauropod and theropod fauna in Australia, including plesiomorphic forms (e.g. Wintonotitan and Australovenator) and more derived forms (e.g. Diamantinasaurus).
authors: Geosciences, Queensland Museum, Hendra, Queensland, Australia. scott.hocknull@qm.qld.gov.au
authors: Scott A
authors: SA
authors: Hocknull
authors: Matt A
authors: MA
authors: White
authors: Travis R
authors: TR
authors: Tischler
authors: Alex G
authors: AG
authors: Cook
authors: Naomi D
authors: ND
authors: Calleja
authors: Trish
authors: T
authors: Sloan
authors: David A
authors: DA
authors: Elliott
mesh_terms: D000818:Animals; D025061:Dinosaurs; D005580:Fossils; D010802:Phylogeny; D011793:Queensland