Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia
During the Early Cretaceous, dinosaur communities of the Australian-Antarctic rift system (Eumeralla and Wonthaggi formations) cropping out in Victoria were apparently dominated by a diverse small-bodied ‘basal ornithopod’ fauna. Further north, in Queensland (Winton and Mackunda formations), poorly-...
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crpeerj:10.7717/peerj.6008 2024-09-15T17:48:53+00:00 Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia Bell, Phil R. Herne, Matthew C. Brougham, Tom Smith, Elizabeth T. Australian Research Council Discovery Early Career Researcher Award project ID University of New England SEED 2018 http://dx.doi.org/10.7717/peerj.6008 https://peerj.com/articles/6008.pdf https://peerj.com/articles/6008.xml https://peerj.com/articles/6008.html en eng PeerJ http://creativecommons.org/licenses/by/4.0/ PeerJ volume 6, page e6008 ISSN 2167-8359 journal-article 2018 crpeerj https://doi.org/10.7717/peerj.6008 2024-09-02T04:20:35Z During the Early Cretaceous, dinosaur communities of the Australian-Antarctic rift system (Eumeralla and Wonthaggi formations) cropping out in Victoria were apparently dominated by a diverse small-bodied ‘basal ornithopod’ fauna. Further north, in Queensland (Winton and Mackunda formations), poorly-represented small-bodied ornithopods coexisted with large-bodied iguanodontians. Our understanding of the ornithopod diversity from the region between the Australian-Antarctic rift and Queensland, represented by Lightning Ridge in central-northern New South Wales (Griman Creek Formation), has been superficial. Here, we re-investigate the ornithopod diversity at Lightning Ridge based on new craniodental remains. Our findings indicate a diverse ornithopod fauna consisting of two-to-three small-bodied non-iguanodontian ornithopods (including Weewarrasaurus pobeni gen. et sp. nov.), at least one indeterminate iguanodontian, and a possible ankylopollexian. These results support those of previous studies that favour a general abundance of small-bodied basal ornithopods in Early to mid-Cretaceous high-latitude localities of southeastern Australia. Although these localities are not necessarily time-equivalent, increasing evidence indicates that Lightning Ridge formed a ‘meeting point’ between the basal ornithopod-dominated localities in Victoria and the sauropod-iguanodontian faunas in Queensland to the north. Article in Journal/Newspaper Antarc* Antarctic PeerJ Publishing PeerJ 6 e6008 |
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During the Early Cretaceous, dinosaur communities of the Australian-Antarctic rift system (Eumeralla and Wonthaggi formations) cropping out in Victoria were apparently dominated by a diverse small-bodied ‘basal ornithopod’ fauna. Further north, in Queensland (Winton and Mackunda formations), poorly-represented small-bodied ornithopods coexisted with large-bodied iguanodontians. Our understanding of the ornithopod diversity from the region between the Australian-Antarctic rift and Queensland, represented by Lightning Ridge in central-northern New South Wales (Griman Creek Formation), has been superficial. Here, we re-investigate the ornithopod diversity at Lightning Ridge based on new craniodental remains. Our findings indicate a diverse ornithopod fauna consisting of two-to-three small-bodied non-iguanodontian ornithopods (including Weewarrasaurus pobeni gen. et sp. nov.), at least one indeterminate iguanodontian, and a possible ankylopollexian. These results support those of previous studies that favour a general abundance of small-bodied basal ornithopods in Early to mid-Cretaceous high-latitude localities of southeastern Australia. Although these localities are not necessarily time-equivalent, increasing evidence indicates that Lightning Ridge formed a ‘meeting point’ between the basal ornithopod-dominated localities in Victoria and the sauropod-iguanodontian faunas in Queensland to the north. |
author2 |
Australian Research Council Discovery Early Career Researcher Award project ID University of New England SEED |
format |
Article in Journal/Newspaper |
author |
Bell, Phil R. Herne, Matthew C. Brougham, Tom Smith, Elizabeth T. |
spellingShingle |
Bell, Phil R. Herne, Matthew C. Brougham, Tom Smith, Elizabeth T. Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia |
author_facet |
Bell, Phil R. Herne, Matthew C. Brougham, Tom Smith, Elizabeth T. |
author_sort |
Bell, Phil R. |
title |
Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia |
title_short |
Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia |
title_full |
Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia |
title_fullStr |
Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia |
title_full_unstemmed |
Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia |
title_sort |
ornithopod diversity in the griman creek formation (cenomanian), new south wales, australia |
publisher |
PeerJ |
publishDate |
2018 |
url |
http://dx.doi.org/10.7717/peerj.6008 https://peerj.com/articles/6008.pdf https://peerj.com/articles/6008.xml https://peerj.com/articles/6008.html |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
PeerJ volume 6, page e6008 ISSN 2167-8359 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.6008 |
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PeerJ |
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6 |
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e6008 |
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1810290466077278208 |