New dinosaurs include birds Parapengornis eurycaudatus, Holbotia ponomarenkoi (long present as a nomen nudum), and Cratoavis cearensis, sauropodomorphs Haestasaurus becklesii (formerly a species of Pelorosaurus) and Sefapanosaurus zastronensis, ceratopsian Regaliceratops peterhewsi, and ornithopod Iguanodon galvensis.
A "ceratopsian" egg from the Late Cretaceous of Mongolia is re-identified as that of an enantiornithine. Deceptive vocal mimicry in Acanthiza pusilla and phonemic contrasts in the vocalizations of Pomatostomus ruficeps are reported. New studies came out on the morphometrics of the pectoral girdle in Oryctodromeus cubicularis, the wear biomechanics of Triceratops teeth, ontogenetic shape change in the brains of Gallus gallus domesticus, evolution of the neoceratopsian syncervical and columbid head crests, the osteology of Nothronychus, Laplatasaurus araukanicus, and Rebbachisaurus garasbae, the phylogenetic position of Balaur bondoc, and the maneuverability of Agapornis roseicollis. Soft tissue is found to be more commonly preserved in Cretaceous dinosaur bones than once thought. The body mass of Dreadnoughtus schrani is reevaluated. New specimens of Tonsala hildegardae and Sphaerotholus buchholtzae are described. Ecosystem instability is suggested to have suppressed dinosaur ecological dominance in the Late Triassic.