Most dinosaurs with long necks and small heads were quadrupedal (four legged) herbivores (plant eaters) called sauropods, and there were many different species of sauropods. Some famous ones include Apatosaurus, Diplodocus, Brachiosaurus, Camarasaurus, Seismosaurus, Argentinosaurus, Ultrasaurus, and Titanosaurus.
Some of the smallest known sauropods (long necked dinosaurs) belonged to the genus Magyarosaurus. When fully grown, they were a mere 6 meters in length, which is very small by sauropod standards. They lived in what is now Romania near the end of the Cretaceous and are thought to be an example of "insular dwarfism", a phenomenon through which some island dwelling species grow smaller over time, probably because islands offer less space and resources (i.e. food) than the mainland. This theory was pioneered by the Hungarian baron Ferenc Nopcsa, who also discovered the Magyarosaurus, and the genus was later named in his honor.
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the biggest dinosaur was amphicoealis fragillimimus and the smallest dinosaur microraptor or frutaidens
The smallest dinosaur is Microraptor, probably less than 1 ft tall, and is 2 ft long.
Epidexipteryx is the smallest known dinosaur. It weighed only 0.36 lb.
a flamingo
The smallest dinosaur is a humming bird.
Most palaeontologists believe compsognathus was the smallest dinosaur, but recent discoveries of an a dinosaur, micropachycephalosaurus that may be the smallest dinosaur ever and has the longest name ever given to a dinosaur!The smallest dinosaur is said to be the compsognathus.Its just 2 feet long and weighs only up to 6.5 pounds. There are a few more small dinosaurs which have the same heeight of the compsognathus.They are the saltopus and the echinodon.
The Compsognathus.
the smallest dinosaur is a stegosaurus with a 2.5 once brain
The smallest meat-eating dinosaur ever was Microraptor, at 2 feet long and lighter than a turkey.
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`it was comsgnothus
3inches