1. Thulborn, R. A., 1984, Dinosaur trackways in the Winton Formation lMid-Cretaceousr of Queensland: Memoirs of the Queensland museum.

BibTeX
@article{s2d69c25e4b848ee6a319ed93ade35a1e216967c2b,
    author = "Thulborn, R. A.",
    title = "Dinosaur trackways in the Winton Formation lMid-Cretaceousr of Queensland",
    year = "1984",
    journal = "Memoirs of the Queensland museum",
    url = "https://www.semanticscholar.org/paper/d69c25e4b848ee6a319ed93ade35a1e216967c2b",
    is_oa = "true",
    semanticscholar_citation_count = "199",
    semanticscholar_id = "d69c25e4b848ee6a319ed93ade35a1e216967c2b"
}

2. Thulborn, Tony, 1984, Dinosaur trackways in the Winton Formation (Mid-Cretaceous) of Queensland: Queensland Museum.

Abstract

(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.

BibTeX
@article{thulborn1984dinosaur,
    author = "Thulborn, Tony",
    title = "Dinosaur trackways in the Winton Formation (Mid-Cretaceous) of Queensland",
    year = "1984",
    publisher = "Queensland Museum",
    abstract = "(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.",
    url = "https://zenodo.org/doi/10.5281/zenodo.15924679",
    doi = "10.5281/zenodo.15924679"
}

3. Thulborn, R. A. and Wade, M, 1984, Dinosaur trackways in the Winton Formation (Mid-Cretaceous) of Queensland.

BibTeX
@misc{thulborn1984dinosaur1,
    author = "Thulborn, R. A. and Wade, M",
    title = "Dinosaur trackways in the Winton Formation (Mid-Cretaceous) of Queensland",
    year = "1984",
    howpublished = "Memoirs of the Queensland Museum, v. 21, p. 413-517",
    note = "talkorigins\_source = {true}; raw\_reference = {Thulborn, R. A., and Wade, M., 1984, Dinosaur trackways in the Winton Formation (Mid-Cretaceous) of Queensland: Memoirs of the Queensland Museum, v. 21, p. 413-517.}"
}

4. Lockley, M.G., 2001, Trackways‐dinosaur Locomotion: Palaeobiology II: p. 408-412.

BibTeX
@misc{lockley2001trackwaysdinosaur,
    author = "Lockley, M.G.",
    title = "Trackways‐dinosaur Locomotion",
    year = "2001",
    booktitle = "Palaeobiology II",
    url = "https://doi.org/10.1002/9780470999295.ch97",
    doi = "10.1002/9780470999295.ch97",
    pages = "408-412"
}

5. Romilio, A. and Salisbury, S., 2011, A reassessment of large theropod dinosaur tracks from the mid-Cretaceous (late Albian–Cenomanian) Winton Formation of Lark Quarry, central-western Queensland, Australia: A case for mistaken identity: Cretaceous Research: v. 32, no. 2: p. 135-142.

BibTeX
@article{doi101016jcretres201011003,
    author = "Romilio, A. and Salisbury, S.",
    title = "A reassessment of large theropod dinosaur tracks from the mid-Cretaceous (late Albian–Cenomanian) Winton Formation of Lark Quarry, central-western Queensland, Australia: A case for mistaken identity",
    year = "2011",
    journal = "Cretaceous Research",
    url = "https://www.semanticscholar.org/paper/7d18847f75288b2327507d134e4350be0ffa2601",
    doi = "10.1016/J.CRETRES.2010.11.003",
    is_oa = "true",
    number = "2",
    pages = "135-142",
    semanticscholar_citation_count = "78",
    semanticscholar_id = "7d18847f75288b2327507d134e4350be0ffa2601",
    volume = "32"
}

6. Tucker, Ryan T. and Roberts, E. and Hu, Y. and Kemp, A. and Salisbury, S., 2013, Detrital zircon age constraints for the Winton Formation, Queensland: Contextualizing Australia's Late Cretaceous dinosaur faunas: Gondwana Research: v. 24, no. 2: p. 767-779.

BibTeX
@article{doi101016jgr201212009,
    author = "Tucker, Ryan T. and Roberts, E. and Hu, Y. and Kemp, A. and Salisbury, S.",
    title = "Detrital zircon age constraints for the Winton Formation, Queensland: Contextualizing Australia's Late Cretaceous dinosaur faunas",
    year = "2013",
    journal = "Gondwana Research",
    url = "https://www.semanticscholar.org/paper/cb4e1e89b726193dd50da8e3bcb275b51a2a92ef",
    doi = "10.1016/J.GR.2012.12.009",
    is_oa = "true",
    number = "2",
    pages = "767-779",
    semanticscholar_citation_count = "171",
    semanticscholar_id = "cb4e1e89b726193dd50da8e3bcb275b51a2a92ef",
    volume = "24"
}

7. Tucker, Ryan T. and Roberts, Eric M. and Hu, Yi and Kemp, Anthony I.S. and Salisbury, Steven W., 2013, Detrital zircon age constraints for the Winton Formation, Queensland: Contextualizing Australia's Late Cretaceous dinosaur faunas: Gondwana Research: v. 24, no. 2: p. 767-779.

BibTeX
@article{tucker2013detrital,
    author = "Tucker, Ryan T. and Roberts, Eric M. and Hu, Yi and Kemp, Anthony I.S. and Salisbury, Steven W.",
    title = "Detrital zircon age constraints for the Winton Formation, Queensland: Contextualizing Australia's Late Cretaceous dinosaur faunas",
    year = "2013",
    journal = "Gondwana Research",
    url = "https://doi.org/10.1016/j.gr.2012.12.009",
    doi = "10.1016/j.gr.2012.12.009",
    number = "2",
    pages = "767-779",
    volume = "24"
}

8. Thulborn, T., 2017, Behaviour of Dinosaurian Track-Makers in the Winton Formation (Cretaceous, Albian–Cenomanian) at Lark Quarry, Western Queensland, Australia: Running or Swimming?: Ichnos: v. 24, no. 1: p. 1-18.

BibTeX
@article{doi1010801042094020151129326,
    author = "Thulborn, T.",
    title = "Behaviour of Dinosaurian Track-Makers in the Winton Formation (Cretaceous, Albian–Cenomanian) at Lark Quarry, Western Queensland, Australia: Running or Swimming?",
    year = "2017",
    journal = "Ichnos",
    url = "https://www.semanticscholar.org/paper/50d28d09bc0bcd0bad45661b8af574b0875ce62d",
    doi = "10.1080/10420940.2015.1129326",
    is_oa = "true",
    number = "1",
    pages = "1-18",
    semanticscholar_citation_count = "18",
    semanticscholar_id = "50d28d09bc0bcd0bad45661b8af574b0875ce62d",
    volume = "24"
}

9. Martin, Jeremy E. and Menkem, Elie Fosso and Djomeni, Adrien and Fowe, Paul Gustave and Ntamak-Nida, Marie-Joseph, 2017, Dinosaur trackways from the early Late Cretaceous of western Cameroon: Journal of African Earth Sciences: v. 134: p. 213-221.

BibTeX
@article{martin2017dinosaur,
    author = "Martin, Jeremy E. and Menkem, Elie Fosso and Djomeni, Adrien and Fowe, Paul Gustave and Ntamak-Nida, Marie-Joseph",
    title = "Dinosaur trackways from the early Late Cretaceous of western Cameroon",
    year = "2017",
    journal = "Journal of African Earth Sciences",
    url = "https://doi.org/10.1016/j.jafrearsci.2017.06.013",
    doi = "10.1016/j.jafrearsci.2017.06.013",
    pages = "213-221",
    volume = "134"
}

10. Poropat, Stephen F. and Mannion, Philip D. and Upchurch, Paul and Tischler, Travis R. and Sloan, Trish and Sinapius, George H. K. and Elliott, Judy A. and Elliott, David A., 2020, Osteology of the Wide-Hipped Titanosaurian Sauropod Dinosaur Savannasaurus Elliottorum from the Upper Cretaceous Winton Formation of Queensland, Australia: Journal of Vertebrate Paleontology: v. 40, no. 3.

BibTeX
@article{poropat2020osteology,
    author = "Poropat, Stephen F. and Mannion, Philip D. and Upchurch, Paul and Tischler, Travis R. and Sloan, Trish and Sinapius, George H. K. and Elliott, Judy A. and Elliott, David A.",
    title = "Osteology of the Wide-Hipped Titanosaurian Sauropod Dinosaur Savannasaurus Elliottorum from the Upper Cretaceous Winton Formation of Queensland, Australia",
    year = "2020",
    journal = "Journal of Vertebrate Paleontology",
    url = "https://doi.org/10.1080/02724634.2020.1786836",
    doi = "10.1080/02724634.2020.1786836",
    number = "3",
    volume = "40"
}

11. Sharpe, Justin and Price, Dianna and Davis, Charles and Sheppard, Charles and Tesauro, Josephine and Adams, Thomas and Altiner, Demir and Lehrmann, Daniel and Lehrmann, Asmara and Suarez, Marina B. and Lacroix, Brice and Godet, Alexis, 2021, PALEOENVIRONMENTAL RECONSTRUCTION OF LOWER CRETACEOUS DINOSAUR TRACKWAYS CENTRAL TEXAS: Geological Society of America Abstracts with Programs.

BibTeX
@inproceedings{andsharpe2021paleoenvironmental,
    author = "Sharpe, Justin and Price, Dianna and Davis, Charles and Sheppard, Charles and Tesauro, Josephine and Adams, Thomas and Altiner, Demir and Lehrmann, Daniel and Lehrmann, Asmara and Suarez, Marina B. and Lacroix, Brice and Godet, Alexis",
    title = "PALEOENVIRONMENTAL RECONSTRUCTION OF LOWER CRETACEOUS DINOSAUR TRACKWAYS CENTRAL TEXAS",
    year = "2021",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2021am-368105",
    doi = "10.1130/abs/2021am-368105"
}

12. Rigby, Samantha L. and Poropat, Stephen F. and Mannion, P. and Pentland, Adele H. and Sloan, Trish and Rumbold, Steven J. and Webster, Carlin B. and Elliott, David A., 2021, A juvenile Diamantinasaurus matildae (Dinosauria: Titanosauria) from the Upper Cretaceous Winton Formation of Queensland, Australia, with implications for sauropod ontogeny: Journal of Vertebrate Paleontology: v. 41, no. 6.

Abstract

ABSTRACT Although sauropod dinosaur bones are the most abundant vertebrate fossils found in the Upper Cretaceous Winton Formation of northeast Australia, only subadult and adult specimens have been described to date. Herein, we describe the first juvenile sauropod from Australia, derived from the Winton Formation (Cenomanian–lower Turonian). The preserved material belongs to a single individual and is sufficiently diagnostic to classify as a juvenile Diamantinasaurus matildae—the third specimen to be referred to the species. It also enables the identification of a new local autapomorphy for Diamantinasaurus: a distinct tuberosity on the medial surface of the scapula, posterior to the junction of the acromion and the distal blade. Nevertheless, several morphological changes are observable between the juvenile and the two adult skeletons of Diamantinasaurus matildae. These include less well-defined or entirely absent muscle attachment sites on the juvenile bones relative to the heavily scarred and rugose adult specimens. Overlapping elements between the juvenile and the two adult skeletons indicate allometric changes for Diamantinasaurus matildae throughout ontogeny, with limb bones growing at a more rapid proportional rate than other skeletal elements. Finally, we review the global record of juvenile sauropod remains, demonstrating that the growth patterns of sauropods vary greatly between taxa. Although titanosaurs display a range of isometry and allometry in the growth of individual bones, it appears that allometric growth was the primary pattern for this group.

BibTeX
@article{doi1010800272463420212047991,
    author = "Rigby, Samantha L. and Poropat, Stephen F. and Mannion, P. and Pentland, Adele H. and Sloan, Trish and Rumbold, Steven J. and Webster, Carlin B. and Elliott, David A.",
    title = "A juvenile Diamantinasaurus matildae (Dinosauria: Titanosauria) from the Upper Cretaceous Winton Formation of Queensland, Australia, with implications for sauropod ontogeny",
    year = "2021",
    journal = "Journal of Vertebrate Paleontology",
    abstract = "ABSTRACT Although sauropod dinosaur bones are the most abundant vertebrate fossils found in the Upper Cretaceous Winton Formation of northeast Australia, only subadult and adult specimens have been described to date. Herein, we describe the first juvenile sauropod from Australia, derived from the Winton Formation (Cenomanian–lower Turonian). The preserved material belongs to a single individual and is sufficiently diagnostic to classify as a juvenile Diamantinasaurus matildae—the third specimen to be referred to the species. It also enables the identification of a new local autapomorphy for Diamantinasaurus: a distinct tuberosity on the medial surface of the scapula, posterior to the junction of the acromion and the distal blade. Nevertheless, several morphological changes are observable between the juvenile and the two adult skeletons of Diamantinasaurus matildae. These include less well-defined or entirely absent muscle attachment sites on the juvenile bones relative to the heavily scarred and rugose adult specimens. Overlapping elements between the juvenile and the two adult skeletons indicate allometric changes for Diamantinasaurus matildae throughout ontogeny, with limb bones growing at a more rapid proportional rate than other skeletal elements. Finally, we review the global record of juvenile sauropod remains, demonstrating that the growth patterns of sauropods vary greatly between taxa. Although titanosaurs display a range of isometry and allometry in the growth of individual bones, it appears that allometric growth was the primary pattern for this group.",
    url = "https://www.tandfonline.com/doi/pdf/10.1080/02724634.2021.2047991?needAccess=true",
    doi = "10.1080/02724634.2021.2047991",
    is_oa = "true",
    number = "6",
    semanticscholar_citation_count = "11",
    semanticscholar_id = "9051887b45606011ed68f0b844348e35965a6aff",
    volume = "41"
}

13. Poropat, Stephen F and White, Matt A and Ziegler, Tim and Pentland, Adele H and Rigby, Samantha L and Duncan, Ruairidh J and Sloan, Trish and Elliott, David A, 2021, A diverse Late Cretaceous vertebrate tracksite from the Winton Formation of Queensland, Australia.: PeerJ.

Abstract

The Upper Cretaceous 'upper' Winton Formation of Queensland, Australia is world famous for hosting Dinosaur Stampede National Monument at Lark Quarry Conservation Park, a somewhat controversial tracksite that preserves thousands of tridactyl dinosaur tracks attributed to ornithopods and theropods. Herein, we describe the Snake Creek Tracksite, a new vertebrate ichnoassemblage from the 'upper' Winton Formation, originally situated on Karoola Station but now relocated to the Australian Age of Dinosaurs Museum of Natural History. This site preserves the first sauropod tracks reported from eastern Australia, a small number of theropod and ornithopod tracks, the first fossilised crocodyliform and?turtle tracks reported from Australia, and possible lungfish and actinopterygian feeding traces. The sauropod trackways are wide-gauge, with manus tracks bearing an ungual impression on digit I, and anteriorly tapered pes tracks with straight or concave forward posterior margins. These tracks support the hypothesis that at least one sauropod taxon from the 'upper' Winton Formation retained a pollex claw (previously hypothesised for Diamantinasaurus matildae based on body fossils). Many of the crocodyliform trackways indicate underwater walking. The Snake Creek Tracksite reconciles the sauropod-, crocodyliform-, turtle-, and lungfish-dominated body fossil record of the 'upper' Winton Formation with its heretofore ornithopod- and theropod-dominated ichnofossil record.

BibTeX
@article{doi107717peerj11544,
    author = "Poropat, Stephen F and White, Matt A and Ziegler, Tim and Pentland, Adele H and Rigby, Samantha L and Duncan, Ruairidh J and Sloan, Trish and Elliott, David A",
    title = "A diverse Late Cretaceous vertebrate tracksite from the Winton Formation of Queensland, Australia.",
    year = "2021",
    journal = "PeerJ",
    abstract = "The Upper Cretaceous 'upper' Winton Formation of Queensland, Australia is world famous for hosting Dinosaur Stampede National Monument at Lark Quarry Conservation Park, a somewhat controversial tracksite that preserves thousands of tridactyl dinosaur tracks attributed to ornithopods and theropods. Herein, we describe the Snake Creek Tracksite, a new vertebrate ichnoassemblage from the 'upper' Winton Formation, originally situated on Karoola Station but now relocated to the Australian Age of Dinosaurs Museum of Natural History. This site preserves the first sauropod tracks reported from eastern Australia, a small number of theropod and ornithopod tracks, the first fossilised crocodyliform and?turtle tracks reported from Australia, and possible lungfish and actinopterygian feeding traces. The sauropod trackways are wide-gauge, with manus tracks bearing an ungual impression on digit I, and anteriorly tapered pes tracks with straight or concave forward posterior margins. These tracks support the hypothesis that at least one sauropod taxon from the 'upper' Winton Formation retained a pollex claw (previously hypothesised for Diamantinasaurus matildae based on body fossils). Many of the crocodyliform trackways indicate underwater walking. The Snake Creek Tracksite reconciles the sauropod-, crocodyliform-, turtle-, and lungfish-dominated body fossil record of the 'upper' Winton Formation with its heretofore ornithopod- and theropod-dominated ichnofossil record.",
    url = "https://pmc.ncbi.nlm.nih.gov/articles/PMC8216175/",
    doi = "10.7717/peerj.11544",
    pmcid = "PMC8216175",
    pmid = "34178452"
}

14. Poropat, Stephen F. and Frauenfelder, Timothy G. and Mannion, Philip D. and Rigby, Samantha L. and Pentland, Adele H. and Sloan, Trish and Elliott, David A., 2022, Sauropod dinosaur teeth from the lower Upper Cretaceous Winton Formation of Queensland, Australia and the global record of early titanosauriforms: Royal Society Open Science: v. 9, no. 7.

Abstract

The Upper Cretaceous Winton Formation of Queensland, Australia, has produced several partial sauropod skeletons, but cranial remains—including teeth—remain rare. Herein, we present the first description of sauropod teeth from this formation, based on specimens from three separate sites. An isolated tooth and a dentary fragment from the Diamantinasaurus matildae type locality are considered to be referable to that titanosaurian taxon. A single tooth from the D. matildae referred specimen site is similarly regarded as being part of that individual. Seventeen teeth from a new site that are morphologically uniform, and similar to the teeth from the two Diamantinasaurus sites, are assigned to Diamantinasauria. All sauropod teeth recovered from the Winton Formation to date are compressed-cone-chisel-shaped, have low slenderness index values (2.00–2.88), are lingually curved at their apices, mesiodistally convex on their lingual surfaces, and lack prominent carinae and denticles. They are markedly different from the chisel-like teeth of derived titanosaurs, more closely resembling the teeth of early branching members of the titanosauriform radiation. This provides further support for a ‘basal’ titanosaurian position for Diamantinasauria. Scanning electron microscope microwear analysis of the wear facets of several teeth reveals more scratches than pits, implying that diamantinasaurians were mid-height (1–10 m) feeders. With a view to assessing the spatio-temporal distribution of sauropod tooth morphotypes before and after deposition of the Winton Formation, we provide a comprehensive continent-by-continent review of the early titanosauriform global record (Early to early Late Cretaceous). This indicates that throughout the Early–early Late Cretaceous, sauropod faunas transitioned from being quite diverse at higher phylogenetic levels and encompassing a range of tooth morphologies at the start of the Berriasian, to faunas comprising solely titanosaurs with limited dental variability by the end-Turonian. Furthermore, this review highlights the different ways in which this transition unfolded on each continent, including the earliest records of titanosaurs with narrow-crowned teeth on each continent.

BibTeX
@article{poropat2022sauropod,
    author = "Poropat, Stephen F. and Frauenfelder, Timothy G. and Mannion, Philip D. and Rigby, Samantha L. and Pentland, Adele H. and Sloan, Trish and Elliott, David A.",
    title = "Sauropod dinosaur teeth from the lower Upper Cretaceous Winton Formation of Queensland, Australia and the global record of early titanosauriforms",
    year = "2022",
    journal = "Royal Society Open Science",
    abstract = "The Upper Cretaceous Winton Formation of Queensland, Australia, has produced several partial sauropod skeletons, but cranial remains—including teeth—remain rare. Herein, we present the first description of sauropod teeth from this formation, based on specimens from three separate sites. An isolated tooth and a dentary fragment from the Diamantinasaurus matildae type locality are considered to be referable to that titanosaurian taxon. A single tooth from the D. matildae referred specimen site is similarly regarded as being part of that individual. Seventeen teeth from a new site that are morphologically uniform, and similar to the teeth from the two Diamantinasaurus sites, are assigned to Diamantinasauria. All sauropod teeth recovered from the Winton Formation to date are compressed-cone-chisel-shaped, have low slenderness index values (2.00–2.88), are lingually curved at their apices, mesiodistally convex on their lingual surfaces, and lack prominent carinae and denticles. They are markedly different from the chisel-like teeth of derived titanosaurs, more closely resembling the teeth of early branching members of the titanosauriform radiation. This provides further support for a ‘basal’ titanosaurian position for Diamantinasauria. Scanning electron microscope microwear analysis of the wear facets of several teeth reveals more scratches than pits, implying that diamantinasaurians were mid-height (1–10 m) feeders. With a view to assessing the spatio-temporal distribution of sauropod tooth morphotypes before and after deposition of the Winton Formation, we provide a comprehensive continent-by-continent review of the early titanosauriform global record (Early to early Late Cretaceous). This indicates that throughout the Early–early Late Cretaceous, sauropod faunas transitioned from being quite diverse at higher phylogenetic levels and encompassing a range of tooth morphologies at the start of the Berriasian, to faunas comprising solely titanosaurs with limited dental variability by the end-Turonian. Furthermore, this review highlights the different ways in which this transition unfolded on each continent, including the earliest records of titanosaurs with narrow-crowned teeth on each continent.",
    url = "https://doi.org/10.1098/rsos.220381",
    doi = "10.1098/rsos.220381",
    number = "7",
    volume = "9"
}

15. 2023, Winton Formation, Scene 3, Queensland: Prehistoric Australasia: p. 82-83.

BibTeX
@incollection{crossref2023winton,
    title = "Winton Formation, Scene 3, Queensland",
    year = "2023",
    booktitle = "Prehistoric Australasia",
    url = "https://doi.org/10.1071/9780643108066.bk06994\_ch33",
    doi = "10.1071/9780643108066.bk06994\_ch33",
    pages = "82-83"
}

16. Poropat, Stephen F. and Mannion, Philip D. and Rigby, Samantha L. and Duncan, Ruairidh J. and Pentland, Adele H. and Bevitt, Joseph J. and Sloan, Trish and Elliott, David A., 2023, A nearly complete skull of the sauropod dinosaur Diamantinasaurus matildae from the Upper Cretaceous Winton Formation of Australia and implications for the early evolution of titanosaurs: Royal Society Open Science.

Abstract

Titanosaurian sauropod dinosaurs were diverse and abundant throughout the Cretaceous, with a global distribution. However, few titanosaurian taxa are represented by multiple skeletons, let alone skulls. Diamantinasaurus matildae, from the lower Upper Cretaceous Winton Formation of Queensland, Australia, was heretofore represented by three specimens, including one that preserves a braincase and several other cranial elements. Herein, we describe a fourth specimen of Diamantinasaurus matildae that preserves a more complete skull-including numerous cranial elements not previously known for this taxon-as well as a partial postcranial skeleton. The skull of Diamantinasaurus matildae shows many similarities to that of the coeval Sarmientosaurus musacchioi from Argentina (e.g. quadratojugal with posterior tongue-like process; braincase with more than one ossified exit for cranial nerve V; compressed-cone-chisel-like teeth), providing further support for the inclusion of both taxa within the clade Diamantinasauria. The replacement teeth within the premaxilla of the new specimen are morphologically congruent with teeth previously attributed to Diamantinasaurus matildae, and Diamantinasauria more broadly, corroborating those referrals. Plesiomorphic characters of the new specimen include a sacrum comprising five vertebrae (also newly demonstrated in the holotype of Diamantinasaurus matildae), rather than the six or more that typify other titanosaurs. However, we demonstrate that there have been a number of independent acquisitions of a six-vertebrae sacrum among Somphospondyli and/or that there have been numerous reversals to a five-vertebrae sacrum, suggesting that sacral count is relatively plastic. Other newly identified plesiomorphic features include: the overall skull shape, which is more similar to brachiosaurids than 'derived' titanosaurs; anterior caudal centra that are amphicoelous, rather than procoelous; and a pedal phalangeal formula estimated as 2-2-3-2-0. These features are consistent with either an early-branching position within Titanosauria, or a position just outside the titanosaurian radiation, for Diamantinasauria, as indicated by alternative character weighting approaches applied in our phylogenetic analyses, and help to shed light on the early assembly of titanosaurian anatomy that has until now been obscured by a poor fossil record.

BibTeX
@article{doi101098rsos221618,
    author = "Poropat, Stephen F. and Mannion, Philip D. and Rigby, Samantha L. and Duncan, Ruairidh J. and Pentland, Adele H. and Bevitt, Joseph J. and Sloan, Trish and Elliott, David A.",
    title = "A nearly complete skull of the sauropod dinosaur Diamantinasaurus matildae from the Upper Cretaceous Winton Formation of Australia and implications for the early evolution of titanosaurs",
    year = "2023",
    journal = "Royal Society Open Science",
    abstract = "Titanosaurian sauropod dinosaurs were diverse and abundant throughout the Cretaceous, with a global distribution. However, few titanosaurian taxa are represented by multiple skeletons, let alone skulls. Diamantinasaurus matildae, from the lower Upper Cretaceous Winton Formation of Queensland, Australia, was heretofore represented by three specimens, including one that preserves a braincase and several other cranial elements. Herein, we describe a fourth specimen of Diamantinasaurus matildae that preserves a more complete skull-including numerous cranial elements not previously known for this taxon-as well as a partial postcranial skeleton. The skull of Diamantinasaurus matildae shows many similarities to that of the coeval Sarmientosaurus musacchioi from Argentina (e.g. quadratojugal with posterior tongue-like process; braincase with more than one ossified exit for cranial nerve V; compressed-cone-chisel-like teeth), providing further support for the inclusion of both taxa within the clade Diamantinasauria. The replacement teeth within the premaxilla of the new specimen are morphologically congruent with teeth previously attributed to Diamantinasaurus matildae, and Diamantinasauria more broadly, corroborating those referrals. Plesiomorphic characters of the new specimen include a sacrum comprising five vertebrae (also newly demonstrated in the holotype of Diamantinasaurus matildae), rather than the six or more that typify other titanosaurs. However, we demonstrate that there have been a number of independent acquisitions of a six-vertebrae sacrum among Somphospondyli and/or that there have been numerous reversals to a five-vertebrae sacrum, suggesting that sacral count is relatively plastic. Other newly identified plesiomorphic features include: the overall skull shape, which is more similar to brachiosaurids than 'derived' titanosaurs; anterior caudal centra that are amphicoelous, rather than procoelous; and a pedal phalangeal formula estimated as 2-2-3-2-0. These features are consistent with either an early-branching position within Titanosauria, or a position just outside the titanosaurian radiation, for Diamantinasauria, as indicated by alternative character weighting approaches applied in our phylogenetic analyses, and help to shed light on the early assembly of titanosaurian anatomy that has until now been obscured by a poor fossil record.",
    url = "https://doi.org/10.1098/rsos.221618",
    doi = "10.1098/rsos.221618",
    openalex = "W4365147243",
    references = "doi101038srep19165, doi101093zoolinneanzlx103, doi101093zoolinneanzly068, doi101111cla12524, doi1011646zootaxa370131, doi1011646zootaxa384811, doi101371journalpone0151661"
}

17. Beeston, Samantha L. and Poropat, Stephen F. and Mannion, Philip D. and Pentland, Adele H. and Enchelmaier, Mackenzie J. and Sloan, Trish and Elliott, David A., 2024, Reappraisal of sauropod dinosaur diversity in the Upper Cretaceous Winton Formation of Queensland, Australia, through 3D digitisation and description of new specimens: PeerJ: v. 12: p. e17180.

Abstract

Skeletal remains of sauropod dinosaurs have been known from Australia for over 100 years. Unfortunately, the classification of the majority of these specimens to species level has historically been impeded by their incompleteness. This has begun to change in the last 15 years, primarily through the discovery and description of several partial skeletons from the Cenomanian–lower Turonian (lower Upper Cretaceous) Winton Formation in central Queensland, with four species erected to date: Australotitan cooperensis, Diamantinasaurus matildae, Savannasaurus elliottorum, and Wintonotitan wattsi. The first three of these appear to form a clade (Diamantinasauria) of early diverging titanosaurs (or close relatives of titanosaurs), whereas Wintonotitan wattsi is typically recovered as a distantly related non-titanosaurian somphospondylan. Through the use of 3D scanning, we digitised numerous specimens of Winton Formation sauropods, facilitating enhanced comparison between type and referred specimens, and heretofore undescribed specimens. We present new anatomical information on the holotype specimen of Diamantinasaurus matildae, and describe new remains pertaining to twelve sauropod individuals. Firsthand observations and digital analysis enabled previously proposed autapomorphic features of all four named Winton Formation sauropod species to be identified in the newly described specimens, with some specimens exhibiting putative autapomorphies of more than one species, prompting a reassessment of their taxonomic validity. Supported by a specimen-level phylogenetic analysis, we suggest that Australotitan cooperensis is probably a junior synonym of Diamantinasaurus matildae, but conservatively regard it herein as an indeterminate diamantinasaurian, meaning that the Winton Formation sauropod fauna now comprises three (rather than four) valid diamantinasaurian species: Diamantinasaurus matildae, Savannasaurus elliottorum, and Wintonotitan wattsi, with the latter robustly supported as a member of the clade for the first time. We refer some of the newly described specimens to these three species and provide revised diagnoses, with some previously proposed autapomorphies now regarded as diamantinasaurian synapomorphies. Our newly presented anatomical data and critical reappraisal of the Winton Formation sauropods facilitates a more comprehensive understanding of the mid-Cretaceous sauropod palaeobiota of central Queensland.

BibTeX
@article{beeston2024reappraisal,
    author = "Beeston, Samantha L. and Poropat, Stephen F. and Mannion, Philip D. and Pentland, Adele H. and Enchelmaier, Mackenzie J. and Sloan, Trish and Elliott, David A.",
    title = "Reappraisal of sauropod dinosaur diversity in the Upper Cretaceous Winton Formation of Queensland, Australia, through 3D digitisation and description of new specimens",
    year = "2024",
    journal = "PeerJ",
    abstract = "Skeletal remains of sauropod dinosaurs have been known from Australia for over 100 years. Unfortunately, the classification of the majority of these specimens to species level has historically been impeded by their incompleteness. This has begun to change in the last 15 years, primarily through the discovery and description of several partial skeletons from the Cenomanian–lower Turonian (lower Upper Cretaceous) Winton Formation in central Queensland, with four species erected to date: Australotitan cooperensis, Diamantinasaurus matildae, Savannasaurus elliottorum, and Wintonotitan wattsi. The first three of these appear to form a clade (Diamantinasauria) of early diverging titanosaurs (or close relatives of titanosaurs), whereas Wintonotitan wattsi is typically recovered as a distantly related non-titanosaurian somphospondylan. Through the use of 3D scanning, we digitised numerous specimens of Winton Formation sauropods, facilitating enhanced comparison between type and referred specimens, and heretofore undescribed specimens. We present new anatomical information on the holotype specimen of Diamantinasaurus matildae, and describe new remains pertaining to twelve sauropod individuals. Firsthand observations and digital analysis enabled previously proposed autapomorphic features of all four named Winton Formation sauropod species to be identified in the newly described specimens, with some specimens exhibiting putative autapomorphies of more than one species, prompting a reassessment of their taxonomic validity. Supported by a specimen-level phylogenetic analysis, we suggest that Australotitan cooperensis is probably a junior synonym of Diamantinasaurus matildae, but conservatively regard it herein as an indeterminate diamantinasaurian, meaning that the Winton Formation sauropod fauna now comprises three (rather than four) valid diamantinasaurian species: Diamantinasaurus matildae, Savannasaurus elliottorum, and Wintonotitan wattsi, with the latter robustly supported as a member of the clade for the first time. We refer some of the newly described specimens to these three species and provide revised diagnoses, with some previously proposed autapomorphies now regarded as diamantinasaurian synapomorphies. Our newly presented anatomical data and critical reappraisal of the Winton Formation sauropods facilitates a more comprehensive understanding of the mid-Cretaceous sauropod palaeobiota of central Queensland.",
    url = "https://doi.org/10.7717/peerj.17180",
    doi = "10.7717/peerj.17180",
    pages = "e17180",
    volume = "12"
}