Morphology forms the most fundamental level of data in vertebrate palaeontology because it
is through interpretations of morphology that taxa are identified, creating the basis for broad …

More than half of the evolutionary history of birds is played out in the Mesozoic. A recent
burst of fossil discoveries has documented a tremendous diversity of early avians …

Tetanuran theropods represent the majority of Mesozoic predatory dinosaur diversity and
the lineage leading to extant Aves. Thus their history is relevant to understanding the …

ABSTRACT A detailed osteological description of Tyrannosaurus rex Osborn, 1905 is
presented, based primarily on the most complete specimen yet collected of this taxon …

Maniraptora includes birds and their closest relatives among theropod dinosaurs,,,,. During
the Cretaceous period, several maniraptoran lineages diverged from the ancestral …

Recent discoveries and analyses have drawn increased attention to Ceratosauria, a
taxonomically and morphologically diverse group of basal theropods. By the time of its first …

Tyrannosauroids are one of the last and the most successful large-bodied predatory
dinosaur groups,,,,, but their early history remains poorly understood. Here we report a new …

We describe the osteology of the new small theropod dinosaur Masiakasaurus knopfleri,
from the Late Cretaceous Maevarano Formation of northwestern Madagascar …

This new text provides an integrated view of the forces that influence the patterns and rates
of vertebrate evolution from the level of living populations and species to those that resulted …

This work serves as a compendium of anatomical resources upon which a companion
phylogenetic analysis of Aves and related Theropoda (Avialae) was based. Following a brief …