Phil R. Bell
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View article: Re‐evaluation of a soft crested <scp>Edmontosaurin</scp> , with implications for hadrosaurid life appearance and diversity
Re‐evaluation of a soft crested <span>Edmontosaurin</span> , with implications for hadrosaurid life appearance and diversity Open
Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest…
View article: Remote sensing of lichens with drones for detecting dinosaur bones
Remote sensing of lichens with drones for detecting dinosaur bones Open
Advances in palaeontology and evolutionary biology are often linked to the discovery of new fossils, yet these discoveries are typically serendipitous1. Here, we report that lichens can serve as biological indicators of vertebrate fossils …
View article: A ceratopsid-dominated tracksite from the Dinosaur Park Formation (Campanian) at Dinosaur Provincial Park, Alberta, Canada
A ceratopsid-dominated tracksite from the Dinosaur Park Formation (Campanian) at Dinosaur Provincial Park, Alberta, Canada Open
The badlands of Dinosaur Provincial Park (Alberta, Canada) are renowned for the exceptional abundance and diversity of Campanian-aged vertebrate body fossils, especially dinosaurs. Due to the steep exposures and rapid erosion, dinosaur tra…
View article: Remarkable soft tissue anatomy recorded in titanosaur (Sauropoda) tracks from the latest Cretaceous of Mongolia
Remarkable soft tissue anatomy recorded in titanosaur (Sauropoda) tracks from the latest Cretaceous of Mongolia Open
Dinosaur footprints can provide important palaeobiological information, including the speed, behaviour, limb kinematics, and soft tissue anatomy of the trackmaker. Here we report on a collection of well-preserved natural track casts made b…
View article: Epidermal scale growth, allometry and function in non‐avian dinosaurs and extant reptiles
Epidermal scale growth, allometry and function in non‐avian dinosaurs and extant reptiles Open
Epidermal scales in sauropsids perform a wide array of biological functions, which can relate to their shape and size. Accordingly, growth‐related changes in scale morphology may reflect distinct functions between juvenile and adult indivi…
View article: Paleoneurology of the iguanodontian <i>Fostoria dhimbangunmal</i> from the mid-Cretaceous of Australia
Paleoneurology of the iguanodontian <i>Fostoria dhimbangunmal</i> from the mid-Cretaceous of Australia Open
Insights into the paleoneurology and endocranial anatomy of ornithopod dinosaurs come largely from Northern Hemisphere taxa. The recently described non-hadrosaurid iguanodontian Fostoria dhimbangunmal from the Cenomanian of eastern Austral…
View article: A juvenile pterosaur vertebra with putative crocodilian bite from the Campanian of Alberta, Canada
A juvenile pterosaur vertebra with putative crocodilian bite from the Campanian of Alberta, Canada Open
Identifying feeding interactions in the fossil record remains a key challenge for paleoecologists. We report the rare occurrence of a conical, perforative bite mark in a cervical vertebra of an azhdarchid pterosaur, which we identified as …
View article: Revealing the use of dental indices to infer taxonomic variation in sauropod dinosaurs
Revealing the use of dental indices to infer taxonomic variation in sauropod dinosaurs Open
Sauropod teeth are commonly categorized taxonomically by two well‐established measurement indices: slenderness index (SI; apicobasal height/mesiodistal width), which quantifies breadth, and compression index (CI; labiolingual width/mesiodi…
View article: New Lizard Specimens from the Campanian Wapiti Formation of Alberta, Canada
New Lizard Specimens from the Campanian Wapiti Formation of Alberta, Canada Open
Reported lizard material from the Wapiti Formation (central-western Alberta, Canada) is limited to fragmentary remains of Kleskunsaurus grandeprairiensis and Socognathus unicuspis, a partial dentary attributed to Chamops cf. C. segnis, and…
View article: An annotated checklist of Australian Mesozoic tetrapods
An annotated checklist of Australian Mesozoic tetrapods Open
In 2020, the Australasian palaeontological association Australasian Palaeontologists (AAP) joined the Australian government-supported Australian National Species List (auNSL) initiative to compile the first Australian Fossil National Speci…
View article: Exceptional preservation and foot structure reveal ecological transitions and lifestyles of early theropod flyers
Exceptional preservation and foot structure reveal ecological transitions and lifestyles of early theropod flyers Open
Morphology of keratinised toe pads and foot scales, hinging of foot joints and claw shape and size all inform the grasping ability, cursoriality and feeding mode of living birds. Presented here is morphological evidence from the fossil fee…
View article: New Ankylosaurian Cranial Remains From the Lower Cretaceous (Upper Albian) Toolebuc Formation of Queensland, Australia
New Ankylosaurian Cranial Remains From the Lower Cretaceous (Upper Albian) Toolebuc Formation of Queensland, Australia Open
Australian dinosaur research has undergone a renaissance in the last 10 years, with growing knowledge of mid-Cretaceous assemblages revealing an endemic high-paleolatitude Gondwanan fauna. One of its most conspicuous members is ankylosaurs…
View article: The Exquisitely Preserved Dinosaur Skin of Psittacosaurus and the Scaly Skin of Ceratopsian Dinosaurs
The Exquisitely Preserved Dinosaur Skin of Psittacosaurus and the Scaly Skin of Ceratopsian Dinosaurs Open
The Frankfurt specimen of the early-branching ceratopsian dinosaur Psittacosaurus is remarkable for the exquisite preservation of squamous (scaly) skin and other soft tissues that cover almost its entire body. Newly detected details reveal…
View article: The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada
The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada Open
The Wapiti Formation of northwest Alberta and northeast British Columbia, Canada, preserves an Upper Cretaceous terrestrial vertebrate fauna that is latitudinally situated between those documented further north in Alaska and those from sou…
View article: Taphonomy and taxonomy of a juvenile lambeosaurine (Ornithischia: Hadrosauridae) bonebed from the late Campanian Wapiti Formation of northwestern Alberta, Canada
Taphonomy and taxonomy of a juvenile lambeosaurine (Ornithischia: Hadrosauridae) bonebed from the late Campanian Wapiti Formation of northwestern Alberta, Canada Open
Hadrosaurid (duck-billed) dinosaur bonebeds are exceedingly prevalent in upper Cretaceous (Campanian–Maastrichtian) strata from the Midwest of North America (especially Alberta, Canada, and Montana, U.S.A) but are less frequently documente…
View article: Exploring possible ontogenetic trajectories in tyrannosaurids using tracks from the Wapiti Formation (upper Campanian) of Alberta, Canada
Exploring possible ontogenetic trajectories in tyrannosaurids using tracks from the Wapiti Formation (upper Campanian) of Alberta, Canada Open
Fossil tracks should theoretically capture differences in pedal anatomy between growth stages of the same taxon, particularly those related to the soft tissue of the foot, providing a more realistic view of pedal ontogeny than skeletal mat…
View article: A crocodylian-style cloaca in a non-avialan dinosaur
A crocodylian-style cloaca in a non-avialan dinosaur Open
Our knowledge of the reproductive biology of dinosaurs covers a range of aspects, from brooding behaviour to nesting style and the timing of sexual maturity. Yet, the basic anatomy and function of the cloaca in non-avialan dinosaurs remain…
View article: Australia's earliest tetrapod swimming traces from the Hawkesbury Sandstone (Middle Triassic) of the Sydney Basin
Australia's earliest tetrapod swimming traces from the Hawkesbury Sandstone (Middle Triassic) of the Sydney Basin Open
The Hawkesbury Sandstone (Hawkesbury Series, Sydney Basin) on the southeastern coast of New South Wales, Australia, preserves a depauperate but important vertebrate tetrapod body-fossil record from the Early and Middle Triassic. As with ma…
View article: New theropod remains and implications for megaraptorid diversity in the Winton Formation (lower Upper Cretaceous), Queensland, Australia
New theropod remains and implications for megaraptorid diversity in the Winton Formation (lower Upper Cretaceous), Queensland, Australia Open
The holotype specimen of the megaraptorid Australovenator wintonensis , from the Upper Cretaceous Winton Formation (Rolling Downs Group, Eromanga Basin) of central Queensland, is the most complete non-avian theropod found in Australia to d…
View article: High-latitude neonate and perinate ornithopods from the mid-Cretaceous of southeastern Australia
High-latitude neonate and perinate ornithopods from the mid-Cretaceous of southeastern Australia Open
Dinosaurs were remarkably climate-tolerant, thriving from equatorial to polar latitudes. High-paleolatitude eggshells and hatchling material from the Northern Hemisphere confirms that hadrosaurid ornithopods reproduced in polar regions. Si…