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THE OSTEOLOGY OF MASIAKASAURUS KNOPFLERI, A SMALL ABELISAUROID (DINOSAURIA: THEROPODA) FROM THE LATE CRETACEOUS OF MADAGASCAR
TLDR
The osteology of the new small theropod dinosaur Masiakasaurus knopfleri, from the Late Cretaceous Maevarano Formation of northwestern Madagascar, suggests that these taxa form a clade (Noasauridae) within Abelisauroidea.
The phylogeny of Tetanurae (Dinosauria: Theropoda)
TLDR
An exhaustive examination of all basal tetanurans and all existing character data, taking advantage of recent discoveries and adding new morphological, temporal and geographic data achieved significantly improved phylogenetic resolution.
Titanosaurs and the origin of wide-gauge trackways; a biomechanical and systematic perspective on sauropod locomotion
TLDR
It is argued that skeletal morphology is respon- sible for gauge differences and integrate data from locomotor biomechanics and systematics with the track record to predict the hindlimb morphology of wide-gauge trackmakers, implying that titanosaurs were unique among sauropods in having a more varied repertoire of locomotor habits.
Rates of Dinosaur Body Mass Evolution Indicate 170 Million Years of Sustained Ecological Innovation on the Avian Stem Lineage
Early dinosaurs showed rapid evolutionary rates, which were sustained on the line leading to birds. Maintenance of evolvability in key lineages might explain the uneven distribution of trait
Pelvic and hindlimb musculature of Tyrannosaurus rex (Dinosauria: Theropoda)
TLDR
A new reconstruction of the pelvic and hindlimb muscles of the large theropod dinosaur Tyrannosaurus rex is developed, using data from both extant and fossil turtles, lepidosaurs, and archosaurs to constrain inferences concerning the soft‐tissue structures in T. rex.
The Phylogeny of Ceratosauria (Dinosauria: Theropoda)
TLDR
A new cladistic analysis of Ceratosauria from the Late Jurassic‐Late Cretaceous of North and South America, Europe, Africa, India and Madagascar suggests that Elaphrosaurus and its relatives are the most basal ceratosaurs, followed by Ceratosaurus and Noasauridae + Abelisauridae (= Abelisauroidea).
What, if anything, is a cursor? Categories versus continua for determining locomotor habit in mammals and dinosaurs
TLDR
Traditional categories of locomotor habit in mammals are rejected here in favour of a multivariate continuum based on morphological variables that fulfil predictions of limb design under biomechanical theory, which can be tied to limb mechanics and applied to both extant and extinct animals alike.
A new clade of archaic large-bodied predatory dinosaurs (Theropoda: Allosauroidea) that survived to the latest Mesozoic
TLDR
It is demonstrated that the problematic allosauroids Aerosteon, Australovenator, Fukuiraptor and Neovenator form a previously unrecognised but ecologically diverse and globally distributed clade (Neovenatoridae, new clade) with the hitherto enigmatic theropods Chilantaisaurus, Megaraptora and the Maastrichtian Orkoraptor.
Climate constrains the evolutionary history and biodiversity of crocodylians
TLDR
The fossil record of crocodylians and their relatives (pseudosuchians) reveals a rich evolutionary history, prompting questions about causes of long-term decline to their present-day low biodiversity, and the 'balancing forces' of anthropogenic environmental degradation complicate future predictions.
Locomotion in non-avian dinosaurs: integrating data from hindlimb kinematics, in vivo strains, and bone morphology
TLDR
A model is proposed that relates the amount of torsional loading in femora to bone orientation, such that torsion is maximal in horizontal femora and minimal in vertical femora, and supports the prediction of similar vertical femoral postures and hip-driven limb kinematics in these two groups.
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