Archosauria
National Institutes of Health
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The early evolution of archosauromorphs during the Permo-Triassic constitutes an excellent empirical case study to shed light on…
Modern crocodylians, including Alligator mississippiensis, have a greatly elaborated system of pneumatic sinuses invading the…
A fundamental contribution of paleobiology to macroevolutionary theory has been the illumination of deep time patterns of…
Morphology of the neurocentral synchondroses—thin cartilaginous layers between centra and neural arches—are documented in the…
Crown group Archosauria, which includes birds, dinosaurs, crocodylomorphs, and several extinct Mesozoic groups, is a primary…
The dermal skeleton (= exoskeleton) has long been recognized as a major determinant of vertebrate morphology. Until recently…
The paranasal air sinuses and nasal cavities were studied along with other cephalic spaces (brain cavity, paratympanic sinuses…
Abstract Effigia okeeffeae is named based on a well-preserved nearly complete skeleton from the Upper Triassic (?Rhaetian…
Despite more than a century of debate, the evolutionary position of turtles (Testudines) relative to other amniotes (reptiles…
The complete mitochondrial genome of the alligator, Alligator mississippiensis, was sequenced. The size of the molecule is 16,642…