… to improving avian systematics and thus limit the impact of … were among the first to estimate
the diversity of past … rigid tail, such as the Lower Cretaceous theropod Deinonychus, would be …

… locate the periods of diversification much earlier than the fossil … orders of birds and mammals
arose in the Early Cretaceous, … that modern mammalian and avian orders originated in one …

… a rapid Early Paleocene radiation and a Late Cretaceous … effect ofmethods is that, due to
the confounding effect of rate … calibration based on the oldest reported fossil sand years (Ka…

… the first avian group that underwent a large scale of … the large temporal gap (>70 million
years), the Early Cretaceous … how modern birds have achieved their extraordinary diversity in …

… non-avian dinosaurs at the end of the Cretaceous has been … The scope of impact of the new
Early Cretaceous discoveries … their dramatic rise in diversity earlier in the Late Cretaceous, …

… (that is, a large ascending process) of non-avian theropods is … the first phalanx, as in
Microraptor and nearly all basal birds. … significantly in morphology, size and ecology 11,28 , but …

… are associated with upper Lower Cretaceous (Barremian to … Width and length measurements
are taken from the longest or … the Cretaceous it is clear that there is considerable diversity …

… this newly recognized Asian diversity, the holotype specimen of … We discuss the impact on
the perceived pattern of avialan … for the first time the possibility of Early Cretaceous endemism …

… knowledge of Antarctic Cretaceous-Paleogene avian fossils. … Our depiction of the diversity
and abundance of avian species … crown-group) birds in the Late Cretaceous and a divergence …

… the origin of modern bird diversity and ecosystem ecology. A … the earliest birds, the non-avian
avialans (ie non-crown birds)… of data from the Early Cretaceous Jehol Lagerst�tte. With this …