Results 51 to 60 of about 789 (158)

Theropod dinosaur diversity of the lower English Wealden: analysis of a tooth‐based fauna from the Wadhurst Clay Formation (Lower Cretaceous: Valanginian) via phylogenetic, discriminant and machine learning methods

open access: yesPapers in Palaeontology, Volume 10, Issue 6, November/December 2024.
Abstract The Lower Cretaceous Wealden Supergroup of southern England yields a diverse assemblage of theropod dinosaurs, its taxa being represented by fragments in addition to some of the most informative associated skeletons of the European Mesozoic. Spinosaurids, neovenatorid allosauroids, tyrannosauroids and dromaeosaurids are among reported Wealden ...
Chris T. Barker   +7 more
wiley   +1 more source

Osteology of Unenlagia comahuensis (Theropoda, Paraves, Unenlagiidae) from the Late Cretaceous of Patagonia

open access: yesThe Anatomical Record, 2021
Unenlagia comahuensis was originally described as a phylogenetic link between nonavian dinosaurs and birds. Later it was interpreted by some authors as belonging to the deinonychosaurian clade Dromaeosauridae, and more recently as phylogenetically closer
F. Novas   +3 more
semanticscholar   +1 more source

Re-evaluation of the Haarlem Archaeopteryx and the radiation of maniraptoran theropod dinosaurs [PDF]

open access: yes, 2017
Archaeopteryx is an iconic fossil that has long been pivotal for our understanding of the origin of birds. Remains of this important taxon have only been found in the Late Jurassic lithographic limestones of Bavaria, Germany.
Foth, Christian, Rauhut, Oliver W. M.
core   +2 more sources

Baraminological Analysis of Jurassic and Cretaceous Avialae [PDF]

open access: yes, 2020
The baraminic status of Jurassic and Cretaceous Avialae was evaluated using statistical baraminology. Baraminic distance correlation (BDC) and three dimensional multidimensional scaling (MDS) was applied to six previously published character matrices ...
Garner, Paul A.   +2 more
core   +1 more source

Paleontologia [PDF]

open access: yes, 2018
XXXII Congresso Brasileiro de Zoologia, Foz do Iguaçu, 2018. Tema: Desafios e perspectivas para a Zoologia na América LatinaCaderno de Resumos de Trabalhos da Área temática Paleontologia, do XXXII Congresso Brasileiro de ZoologiaSociedade Brasileira de ...

core  

Nuevos datos sobre los dinosaurios terópodos (Saurischia: Theropoda) del Cretácico superior de los Pirineos Sur-Centrales (Huesca y Lleida) [PDF]

open access: yes, 2004
Six new theropod teeth recovered trom the Blasi 1-3 sites (Upper Maastrichtian) in Arén (Huesca province, Spain) are described and added to the twenty six teeth already known from these and other five localities of Late Campanian-Early Maastrichtian ...
Canudo, José Ignacio   +3 more
core   +1 more source

A bony-crested Jurassic dinosaur with evidence of iridescent plumage highlights complexity in early paravian evolution [PDF]

open access: yes, 2018
The Jurassic Yanliao theropods have offered rare glimpses of the early paravian evolution and particularly of bird origins, but, with the exception of the bizarre scansoriopterygids, they have shown similar skeletal and integumentary morphologies.
Clarke, Julia A   +9 more
core   +3 more sources

Dromaeosauridae Matthew & Brown 1922

open access: yes, 1982
Family DROMAEOSAURIDAE Fig. 1 Material: Dentary fragments: UW 13684 (UCMP-V 5003); and UCMP 125238 (UCMP-V73089). Teeth: UCM 39502 (UCMP-V5711) H 1.7 mm, W 2 mm; UCM 45055 (UCMP-V5620) H 2.6 mm, W 2.2 mm; UCMP 124983 (UCMP-V73087) H 2.1 mm, W 2 mm; UCMP 124984 (UCMP-V73087) H 3 mm, W 2.1 mm; and UCMP 124985 (UCMP-V73087) H 2.7 mm, W 2.1 mm. Discussion:
openaire   +2 more sources

First record of a Maastrichtian sauropod dinosaur from Egypt [PDF]

open access: yes, 1997
Main articleA left femur of a small sauropod dinosaur was found in the Maastrichtian part of the Ammonite Hill Member of the Dahkla Formation of southwestern Egypt.
Rauhut, Oliver W. M., Werner, Christa
core  

Dromaeosauridae Matthew and Brown 1922

open access: yes, 2003
{"references": ["MATTHEW, W. D. and brown, B. 1922. The family Deinodontidae, with notice of a new genus from the Cretaceous of Alberta. Bulletin of the American Museum of Natural History, 46, 367 - 385.", "------ 1983. Carnivorous dinosaurs from the Cretaceous of Mongolia.
openaire   +1 more source

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