See more ideas about Prehistoric creatures, Prehistoric, Extinct animals. The Cretaceous-Tertiary extinction event, or the K-T event, is the name given to the die-off of the dinosaurs that took place some 65.5 million … Water-loving pterosaurs ate a variety of marine life, including fish, squid, crab and other shellfish. This 30 foot long dinosaur has spikes running down his whole body, probably for protection. If you asked the average person what types of dinosaurs existed, then they would probably name some of the more well known dinosaurs. One of the so called 'toothed birds' commonly found in the Cretaceous of North America and elsewhere. 1 Spinosaurus Spinosaurus is a genus of theropod dinosaur that lived in what now is North Africa, during the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago.. This turkey-sized mini-dinosaur was around 1 meter (3.28 ft.) in length, and weighed between 0.8 … The Marine Reptiles of The Late Cretaceous; Paleoartists; Types Of Dinosaurs. Dinosaurs beginning with O. Time: 80-65 million years ago. In 2014, Hone sought to learn more about the lives of marine pterosaurs. The first large ocean reptiles were nothosaurs, which means 'false reptile'.They lived in the Triassic period probably like seals of today live. It was known for over half of the 20th century as Antrodemus, but a study of the copious remains from the Cleveland-Lloyd Dinosaur Quarry brought the name "Allosaurus" back to … A heavyweight, this dinosaur probably took down slower dinosaurs such as sauropods instead of faster iguanodonts, as shown in the movie Disney: Dinosaur. Learn which ones were the largest and the smallest, what dinosaurs ate and … 9 dinosaurs beginning with O. Omeisaurus Opisthocoelicaudia Opisthocoeli-caudia Ornitholestes Small theropod. Within this list includes not only the dinosaur name but also the original founder, and date of … Dinosaurs 101 Over a thousand dinosaur species once roamed the Earth. -Tyrannosaurus Rex And in the first place we find the famous and indisputably popular T. Rex. Dinosaurs are a diverse group of reptiles of the clade Dinosauria.They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research. Flightless and unable to walk properly, Hesperornis spent most of its time at sea hunting fish and squid, coming on to land to mate and lay eggs. The Plesiosauria (/ ˌ p l iː s i ə ˈ s ɔːr i ə,-z i-/; Greek: πλησίος, plesios, meaning "near to" and sauros, meaning "lizard") or plesiosaurs are an order or clade of extinct Mesozoic marine reptiles (marine Sauropsida), belonging to the Sauropterygia.. Plesiosaurs first appeared in the latest Triassic Period, possibly in the Rhaetian stage, about 203 million years ago. Dinosaurs beginning with A. 37 dinosaurs beginning with A. Aardonyx Abelisaurus Achelousaurus Achillobator Acrocanthosaurus Acrocantho-saurus Aegyptosaurus Afrovenator Agilisaurus Alamosaurus Albertaceratops Albertosaurus Alectrosaurus Alioramus Don't let those big names distract you from peculiar dinosaurs like … Plants and animals. Large theropod. Jun 26, 2017 - Explore fashionfast's board "Marine Dinosaurs", followed by 437 people on Pinterest. Look for the Scipionyx, which is one of the best-preserved fossils discovered to date. Carnotaurus's name means "meat-eating bull" because 1. Diet: A marine predator eating fish, ammonites and belemnites. Dyslocosaurus Its name means "hard-to-place lizard."

It was about 4 metres (13 ft), with long, webbed toes and it may have had a fin on its tail.