Results 81 to 90 of about 2,200 (200)

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, Russell K. Engelman, Phillip C. Sternes, Wayne M. Itano, Mohamad Bazzi, Alberto Collareta, Rodolfo Salas‐Gismondi, Kenshu Shimada   +7 more
wiley   +1 more source

Late Cretaceous nodosaurids (Ankylosauria: Ornithischia) from Mexico

Revista Mexicana de Ciencias Geológicas, 2014
Restos de anquilosaurios nodosáuridos del Cretácico Superior de México son descritos aquí. Las muestras proceden de la Formación El Gallo de Baja California, de las formaciones Pen y Aguja del noroeste de Coahuila, y de la Formación Cerro del Pueblo ...
Héctor E. Rivera-Sylva, Kenneth Carpenter, Francisco Javier Aranda-Manteca   +2 more
doaj  

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

On Mongolian ornithopods (Dinosauria: Ornithischia). 1. Iguanodon orientalis Rozhdestvensky 1952 [PDF]

Zoological Journal of the Linnean Society, 1996
Abstract The type material of the Cretaceous ornithopod Iguanodon orientalis Rozhdestvensky, 1952 is redescribed. The characters which were originally used to establish a new species are shown to be either incorrect or indistinguishable from Iguanodon bernissartensis Boulenger, 1881.
openaire   +1 more source

The osteology of Shuvosaurus inexpectatus, a shuvosaurid pseudosuchian from the Upper Triassic Post Quarry, Dockum Group of Texas, USA

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

A new specimen of Valdosaurus canaliculatus (Ornithopoda: Dryosauridae) from the Lower Cretaceous of the Isle of Wight, England [PDF]

, 2016
Memoirs of Museum Victoria is an open access journal.
Barrett, PM
core   +1 more source

On Asian ornithopods (Dinosauria: Ornithischia). 4. ProbactrosaurusRozhdestvensky, 1966 [PDF]

Zoological Journal of the Linnean Society, 2002
The genus Probactrosaurus was first established for material discovered by a joint Russian/Chinese expedition to the Chinese autonomous region of Neimongol (Inner Mongolia). Fossils were collected at a site named Maorty (= Maortu). Material attributable to ornithopod dinosaurs was considered sufficiently distinct to permit the definition of two species
openaire   +1 more source

Reassessment of the enigmatic “Prestosuchus” loricatus (Archosauria: Pseudosuchia) from the Middle‐Late Triassic of southern Brazil

The Anatomical Record, Volume 307, Issue 4, Page 974-1000, April 2024.
Abstract Our knowledge of the diversity and evolution of South American Triassic pseudosuchians has greatly improved in the past 15 years, due to new discoveries, but also to the revision of several historically important specimens. One of the earliest descriptions of pseudosuchians from the Triassic of Brazil stems from the classic work of Huene from ...
Julia B. Desojo, Oliver W. M. Rauhut
wiley   +1 more source

Elevated evolutionary rates of biting biomechanics reveal patterns of extraordinary craniodental adaptations in some herbivorous dinosaurs

Palaeontology, Volume 67, Issue 1, January/February 2024.
Abstract Adaptation to specialist ecological niches is a key innovation that has contributed to the evolutionary success of many vertebrate clades, underpinning the acquisition of diverse skull morphologies. Dinosaurs, which dominated Mesozoic terrestrial faunas, acquired herbivory multiple times, and evolution of these herbivorous adaptations is ...
Callum Kunz, Manabu Sakamoto
wiley   +1 more source

Dinosaur biogeographic structure and Mesozoic continental fragmentation: a network-based approach [PDF]

, 2016
Aim: To reconstruct dinosaur macro-biogeographical patterns through the Mesozoic Era using a network-based approach. We test how continental fragmentation affected dinosaur macro-biogeographical structure and evolutionary rates.
Ali, Amiot, Barrett, Bates, Benjamini, Benson, Benson, Benton, Boyland, Brusatte, Butler, Butts, Butts, Carrano, Croft, Csardi, Cumming, Dunhill, Ezcurra, Ezcurra, Ezcurra, Foote, Foote, Foote, Freeman, Gheerbrant, Gradstein, Haq, Holtz, Huber, Kones, Lloyd, Longrich, Longrich, Lull, Mannion, Mannion, Mannion, Miller, Moalic, Newman, Newman, Nieminen, Nopcsa, Opsahl, R Core Team, Rowe, Rutz, Sereno, Sereno, Sidor, Sidor, Smith, Smith, Starrfelt, Stubbs, Tschopp, Turner, Upchurch, Upchurch, Upchurch, Upchurch, Veevers, Venables, Vilhena, Vilhena, Wang, Whiteside, Whiteside, Xu   +69 more
core   +1 more source