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The data matrix was taken from Clark (2011) analyses of Fruitachampsa. Clark (2011) developed upon character’s taken mostly from Pol and Gasparini (2009) work. Pol and Gasparini (2009) matrix wasExpand
Two feathered dinosaurs from northeastern China
Current controversy over the origin and early evolution of birds centres on whether or not they are derived from coelurosaurian theropod dinosaurs. Here we describe two theropods from the UpperExpand
A Review of Dromaeosaurid Systematics and Paravian Phylogeny
TLDR
This study provides the most detailed and comprehensive phylogenetic analysis of paravians to date in order to explore the phylogenetic history of dromaeosaurid taxa and reviews and revises the membership of DromaeOSauridae and provides an apomorphy-based diagnosis for all valid taxa. Expand
A Complete Skeleton of a Late Triassic Saurischian and the Early Evolution of Dinosaurs
TLDR
A new theropod dinosaur from New Mexico is a representative of the early North American diversification and reveals a mosaic of plesiomorphic and derived features that clarify early saurischian dinosaur evolution and provide evidence for the antiquity of novel avian character systems including skeletal pneumaticity. Expand
A basal troodontid from the Early Cretaceous of China
TLDR
The discovery of Sinovenator and the examination of character distributions along the maniraptoran lineage indicate that principal structural modifications toward avians were acquired in the early stages of manIRaptoran evolution. Expand
Morphology of the Late Cretaceous Crocodylomorph Shamosuchus djadochtaensis and a Discussion of Neosuchian Phylogeny as Related to the Origin of Eusuchia
TLDR
A review of all the available evidence on the diversity of advanced neosuchians suggests this group achieved a worldwide distribution and a remarkable morphological diversity, pushing their evolutionary origins back to the Jurassic. Expand
New Specimens of Microraptor zhaoianus (Theropoda: Dromaeosauridae) from Northeastern China
TLDR
New specimens of the diminutive theropod dinosaur Microraptor zhaoianus are described, found to be the sister taxon to other dromaeosaurs and apparently small size is primitive for Deinonychosauria, which has implications for bird origins. Expand
A Basal Dromaeosaurid and Size Evolution Preceding Avian Flight
TLDR
Change in theropod body size leading to flight's origin was not unidirectional, and the two dinosaurian lineages most closely related to birds, dromaeosaurids and troodontids, underwent four independent events of gigantism, and in some lineages size increased by nearly three orders of magnitude. Expand
Combined support for wholesale taxic atavism in gavialine crocodylians.
TLDR
Simultaneous analyses of four gene sequences and paleontological data suggest that putative adaptive convergences in the jaws of gavialines and tomistomines offer character support for a grouping of these taxa, making Gavialinae an atavistic taxon. Expand
South America's earliest rodent and recognition of a new interval of mammalian evolution
THE mid-Cenozoic immigration of rodents and primates to South America (when it was widely isolated by oceans) represents a pre-eminent problem in the biogeographical history of placental mammals. TheExpand
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