A redescription of the ankylosaurid dinosaur <i>Dyoplosaurus acutosquameus</i> Parks, 1924 (Ornithischia: Ankylosauria) and a revision of the genus

Arbour, Victoria M.; Burns, Michael E.; Sissons, Robin L.

doi:10.1671/039.029.0405

Cited by 53 publications

(72 citation statements)

References 14 publications

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“…This is likely attributable to various sources, but primarily includes taxonomic differences (Carpenter, 1982;Penkalski, 2001, in press;Arbour et al, 2009;Penkalski and Blows, 2012;Arbour and Currie, 2013). Most of the information on the arrangement of osteoderms across the body in Euoplocephalus is actually from the holotypes of Dyoplosaurus acutosquameus Parks, 1924 (ROM 784), and Scolosaurus cutleri Nopsca, 1928 (NHMUK R5161).…”

Section: Ankylosauridaementioning

confidence: 99%

External and internal structure of ankylosaur (Dinosauria, Ornithischia) osteoderms and their systematic relevance

Burns

Currie

2014

Journal of Vertebrate Paleontology

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Ankylosaurian systematics can be assessed using morphological, textural, and histological characters of osteoderms. Archosaur osteoderms have cortices surrounding cancellous cores. Ankylosaurs are united by an external cortex distinguishable from the core and by the presence of mineralized structural fibers. Nodosaurid osteoderms lack a well-developed basal cortex and have dense external cortical fibers. Ankylosaurid osteoderms are thinner than those of other ankylosaurs. Polacanthine osteoderms have a cancellous core, but share this feature with other derived and primitive taxa. Cortical thickness overlaps among groups, so a thick cortex is not diagnostic for polacanthines. Specialized elements diverge histologically from the primitive condition to suit their specific functions. Some shapes and external textures are diagnostic for specific taxa, such as Ankylosaurus and Glyptodontopelta. Parsimony analyses suggest osteodermal support for a monophyletic Polacanthinae (excluding Mymoorapelta) and Shamosaurinae.

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Section: Ankylosauridaementioning

confidence: 99%

External and internal structure of ankylosaur (Dinosauria, Ornithischia) osteoderms and their systematic relevance

Burns

Currie

2014

Journal of Vertebrate Paleontology

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“…However, ankylosaurid handle vertebrae rarely have transverse processes/caudal ribs, and when present, these are low, rounded nubs (e.g. Dyoplosaurus, Arbour et al 2009), unlike the anteroposteriorly long and dorsventrally flat transverse processes present in MLP 86-X-28-1. Nodosaurid distal caudal vertebrae also lack such anteroposteriorly long transverse processes.…”

mentioning

confidence: 99%

Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs

Arbour

Currie

2015

Journal of Systematic Palaeontology

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135

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“…In two distal specimens (PIN 1344/74 and 75), the osteodermal projections have more rugose surface textures than other specimens, although this may be ontogenetically affected. These distal projections do not cover the distal end of the band as in other (more skeletally mature) ankylosaurs (Penkalski, 2001;Arbour et al, 2009), but they do extend with distal inclinations. (2), posterior views.…”

Section: Dermal Skeleton Descriptionmentioning

confidence: 88%

Postcrania of juvenilePinacosaurus grangeri(Ornithischia: Ankylosauria) from the Upper Cretaceous Alagteeg Formation, Alag Teeg, Mongolia: implications for ontogenetic allometry in ankylosaurs

Burns¹,

Tumanova²,

Currie³

2015

J. Paleontol.

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The ankylosaurine Pinacosaurus is one of the best known ankylosaur to date in terms of the number and preservational quality of specimens. Juvenile to sub-adult postcrania collected by the Soviet-Mongolian Paleontological Expedition from the Upper Cretaceous Alagteeg Formation at Alag Teeg, Mongolia can be assigned to Pinacosaurus grangeri based on discrete cranial characters. One individual is significantly larger than the others and demonstrates delayed fusion of postcranial elements with the earliest occurring between dorsal ribs and vertebrae. The robustness of forelimb elements is positively allometric with respect to their length, indicating weight-bearing relationship. Such length-dependent correlations are not seen in the hind limbs. Finally, incipient cervical half rings suggest a developmental pathway of outgrowths from the underlying band combined with fusion of overlying osteoderms.

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A redescription of the ankylosaurid dinosaur Dyoplosaurus acutosquameus Parks, 1924 (Ornithischia: Ankylosauria) and a revision of the genus

Cited by 53 publications

References 14 publications

External and internal structure of ankylosaur (Dinosauria, Ornithischia) osteoderms and their systematic relevance

External and internal structure of ankylosaur (Dinosauria, Ornithischia) osteoderms and their systematic relevance

Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs

Postcrania of juvenilePinacosaurus grangeri(Ornithischia: Ankylosauria) from the Upper Cretaceous Alagteeg Formation, Alag Teeg, Mongolia: implications for ontogenetic allometry in ankylosaurs

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