Affichage des articles dont le libellé est Paléoart: Dinos. Afficher tous les articles
Affichage des articles dont le libellé est Paléoart: Dinos. Afficher tous les articles
Hadrosaurus foulkii (Camus Altamirano)
Hadrosaurus was the second dinosaur named in North America and a whole family of dinosaurs – hadrosaurs – was named after it. It was the first duck-billed dinosaur found, and one of the first on the East Coast of the U.S. It was a large plant-eater and is often shown standing upright, although it actually would have spent most of its time on all four legs.
The original specimen of Hadrosaurus was found in the Cretaceous marls of New Jersey in 1858. Joseph Leidy, an anatomy professor from Philadelphia, assembled the skeleton and named it.
Nanosaurus agilis (Camus Altamirano)
Nanosaurus agilis is the only known species of the extinct genus Nanosaurus (gr. “tiny lizard”) of ornithischian ornithopod dinosaur, which lived at the end of the Jurassic period, approximately 155 to 148 million years ago, during the Kimmeridgian, in what is today North America.
The taxon has a complicated taxonomic history, largely the work of Othniel C. Marsh and Peter M. Galton, involving the genera Laosaurus, Hallopus, Drinker, Othnielia, and Othnielosaurus, the latter three now considered synonyms of Nanosaurus. Historically it had been classified as a hypsilophodontid or fabrosaurid, types of small generalist bipedal herbivores, but more recent research has abandoned these groups as paraphyletic and today Nanosaurus is considered a basal member of Neornithischia.
Ceratosaurus nasicornis (Camus Altamirano)
Ceratosaurus, meaning ‘horned lizard’, in reference to the horn on its nose (Greek keras/keratos meaning ‘horn’ and sauros meaning ‘lizard’), was a large predatory dinosaur from the Late Jurassic Period, found in the Morrison Formation of North America, in Tanzania and Portugal.
Ryan Dewey
Just finished this illustration today based on the Coffee Hollow A-Male Trackway in Texas showing manus (hand) prints only from giant Early Cretaceous sauropods. Some scientists believe the lack of hind feet in the trackways indicate the animals were punting their way across a (to them) shallow body of water. The only dinosaur known of this size from Early Cretaceous North America is currently Sauroposeidon, hence the choice of dinosaur for this illustration. This is why I love dinosaur footprints. Bones can tell you a lot about an animal, but ony trace fossils like these can show what the animals were doing when they were alive!
Représentation exacte d'un Psittacosaurus
Extrait de la nouvelle:
This Psittacosaurus also highlights how important research is for creating accurate paleoart. “The days when a paleoartist could simply fabricate any colour pattern they wanted for a dinosaur are gone,” Nicholls points out. “We have evidence of colour patterns in an increasing number of species, and where we don’t there are a great number of trends in nature that need to be considered, not to mention the variety of ways animals create colour.”
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