Results 61 to 70 of about 424 (121)
Cautionary tales on the use of proxies to estimate body size and form of extinct animals
Ecology and Evolution, Volume 14, Issue 9, September 2024.Reconstructing the body size and form of extinct animals is of vital importance to our understanding of macroevolution and palaeontology. This is often done using anatomical proxies where extinct species are known only from fragmentary remains. However, there are many limitations influencing the selection of proxy taxa that are frequently overlooked ...
Joel H. Gayford +7 more
wiley +1 more source
Standardizing fossil disparity metrics using sample coverage
Palaeontology, Volume 67, Issue 5, September/October 2024.Abstract Estimating past biodiversity using the fossil record is a central goal of palaeobiology. Because raw estimates of biodiversity are biased by variation in sampling intensity across time, space, environments and taxonomic groups, sampling standardization is routinely applied when estimating taxonomic diversity (e.g. species richness).
Menna Jones, Roger Close
wiley +1 more source
A new basal ornithopod (Dinosauria: Ornithischia) from the Early Cretaceous of Texas.
PLoS ONE, 2019 Material from a minimum of twenty-nine individuals of a new ornithopod, represented by nearly every skeletal element, was recovered from the Proctor Lake locality in the Twin Mountains Formation (Aptian) of north-central Texas.
Kate A Andrzejewski +2 more
doaj +1 more source
The Anatomical Record, Volume 307, Issue 4, Page 1175-1238, April 2024.Abstract A vast array of pseudosuchian body plans evolved during the diversification of the group in the Triassic Period, but few can compare to the toothless, long‐necked, and bipedal shuvosaurids. Members of this clade possess theropod‐like character states mapped on top of more plesiomorphic pseudosuchian character states, complicating our ...
Sterling J. Nesbitt, Sankar Chatterjee
wiley +1 more source
Hypsilophodon foxii (Reptilia, Ornithischia) en el Cretácico inferior de Igea (La Rioja, España). [PDF]
Munibe Ciencias Naturales, 1994 Se describen restos óseos del dinosaurio ornitópodo Hypsilophodon foxii, pertenecientes a un único ejemplar hallado en sedimentos rojos del Cretácico inferior (facies Weald) en la provincia de La Rioja (N. de España).
TORRES, J.A., VIERA, Luis I.
doaj
PLoS ONE, 2012 Bone and calcified cartilage can be fossilized and preserved for hundreds of millions of years. While primary cartilage is fairly well studied in extant and fossilized organisms, nothing is known about secondary cartilage in fossils.
Alida M Bailleul +2 more
doaj +1 more source
PLoS ONE, 2018 Convoluted nasal passages are an enigmatic hallmark of Ankylosauria. Previous research suggested that these convoluted nasal passages functioned as heat exchangers analogous to the respiratory turbinates of mammals and birds. We tested this hypothesis by
Jason M Bourke +2 more
doaj +1 more source
Classification of large ornithopod dinosaur footprints using Xception transfer learning. [PDF]
PLoS One, 2023 Ha Y, Kim SS.
europepmc +1 more source
An Italian dinosaur Lagerstätte reveals the tempo and mode of hadrosauriform body size evolution. [PDF]
Sci Rep, 2021 Chiarenza AA +6 more
europepmc +1 more source
Dental form and function in the early feeding diversification of dinosaurs. [PDF]
Sci Adv, 2022 Ballell A, Benton MJ, Rayfield EJ.
europepmc +1 more source