Well, most Plesiosaurs kinda look like non shelled turtles with long necks. There are also short necked species with huge crocodile like jaws with razor sharp teeth. This sub group of Plesiosaurs are known as Pliosaurs. Examples of Plesiosaurs Long necked Plesiosaurus Cryptoclydus Elasmosaurus Short necked (Pliosaurs) Pliosaurus Liopleurodon Well, most Plesiosaurs kinda look like non shelled turtles with long necks. There are also short necked species with huge crocodile like jaws with razor sharp teeth. This sub group of Plesiosaurs are known as Pliosaurs. Examples of Plesiosaurs Long neckedPlesiosaurus Cryptoclydus Elasmosaurus Short necked (Pliosaurs) Pliosaurus Liopleurodon
A pterodactyl was a flight-capable dinosaur, and looked like a cross between a reptile and a bird. It had wings rather than forelimbs, and often is depicted with an elongated crest on the skull.
Paleontologists believe the Elasmosaurus weighed around two tons and stood 30 feet tall. It was a good swimmer with four flippers and a 25-foot long neck. It has razor sharp teeth and strong jaws so it could eat almost any animal it found in the ocean.
Apatosaurus walked on four sturdy legs, had a bulky body, and a very long, narrow tail. It also had a long but thick neck and a small head. They were herbivores. They were also huge at 75 feet in length and weighing in at 18 to 25 tons.
A parasauralophus has a long crest on top of its head. We don't know the color because there are no color cells on fossils. But I'll tell you that it is much taller and heavier than you!
Pterodactylus was small and built for flight, so it wasn't designed with the kind of durability to fight. Perhaps they fought with other Pterodactylus, but there is no evidence that they fought with anything. If attacked, a Pterodactylus would just fly away, like a bird.
If you looked at the wings and the short tail, Pterodactylus looked a fair amount like a bat. In fact, parts of the Pterodactylus were covered in hair-like pycnofibers, and both pterosaurs and bats walk on all fours. However, Pterodactylus had a long neck, long, narrow jaws, and even a throat pouch, more similar to birds like pelicans.
Pterodactylus was a pterosaur, and like all pterosaurs, was carnivorous. Young Pterodactylus would have hunted insects, while adults hunted small fish, lizards, amphibians, and primitive mammals.
Like most predators, Pterodactylus's role in the ecosystem was population control. By hunting its prey, namely insects, and small animals like fish, lizards, amphibians, and primitive mammals, Pterodactylus would have helped to control their populations.
Pterodactylus got its food by hunting, probably swooping down on prey and killing it with its jaws. Pterodactylus ate insects, small fish, and small land animals like lizards, amphibians, and primitive mammals.
Pterodactylus was a pterosaur, or flying reptile. Paleontologists believe that like all pterosaurs, Pterodactylus would have needed to be warm blooded in order to keep up with the rigorous demands of flight.
A flying dinosaur
Pterodactylidae
In the sky.
Pterodactylus isn't known from any adult specimens. However, based on the size and development levels of the many juvenile Pterodactylus that have been found, paleontologists estimate that Pterodactylus had a wingspan of about 5 feet. it has small bodies
There are far too many differences to list, but here are a few major ones. Pterodactylus was a pterosaur, eagles are birds. Pterodactylus was partially covered in hair-like pycnofibers, eagles are almost completely covered in feathers. Pterodactylus had a long neck, long jaws, and lots of tiny teeth, while eagles have a short neck, a short, curved beak, and no teeth. Pterodactylus would have killed its prey with its teeth, while eagles kill their prey with their talons. Pterodactylus walked on all fours, while eagles walk on two feet.
Pterodactylus and Stegosaurus probably mostly ignored each other. Pterodactylus was far too small to hunt Stegosaurus, and Stegosaurus eggs probably had a shell too thick for a Pterodactylus to break it.