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 …

Reptiles, including birds, exhibit a range of behaviorally relevant adaptations that are
reflected in changes to the structure of the inner ear. These adaptations include the capacity …

Alvarezsauria is a group of early-branching maniraptoran theropods that are distributed
globally from the Late Jurassic to the latest Cretaceous. Despite recent increases in the …

Sustained miniaturization, here defined as a drop in body size of at least two orders of
magnitude from ancestors to descendants, is a widespread and important phenomenon in …

Abstract The Middle–Late Jurassic transition period is a critical period for the evolution of
terrestrial vertebrates, but the global fossil record from this time is relatively poor. The …

The dental morphology of the holotype of the theropod Sinraptor dongi from the Jurassic
Shishugou Formation of China is comprehensively described. We highlight a combination of …

Parvicursor remotus Karhu & Rautian,, based on a fragmentary skeleton from the
Campanian Barungoyot Formation at Khulsan, in the Gobi Desert of Mongolia, is re …

Abstract The enigmatic Alvarezsauria (Dinosauria: Theropoda) are characterized by
extremely short forelimbs with a single functional digit bearing a large, robust ungual …

Maniraptoran dinosaurs include the ancestors of birds, and most used their hands for
grasping and in flight, but early-branching maniraptorans had extraordinary claws of …

The anatomy of the alvarezsaurian tail has received relatively little attention in the
paleontological literature, even though it shows a peculiar combination of anatomical …