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|What does the word dinosaur mean?
What does saurus mean?,
What does deinos mean?
What color were the dinosaurs?
How (and when) did the dinosaurs go extinct?
|How many dinosaurs were there?|
|What was the biggest dinosaur?||What was the smallest dinosaur?||Which dinosaur was the largest meat-eater?||Were there more plant-eaters or meat-eaters?|
|How many teeth did T. rex have (and how big were they)?||What is the oldest dinosaur ever found?||What was the first dinosaur ever found?||
Did birds evolve from the dinosaurs?
Were there any flying dinosaurs?
Were there any swimming dinosaurs?
|How do you know what the enemies of a dinosaur were?||What kind of habitats did the dinosaurs live in?|
A: No dinosaurs were adapted for life in the water. There were other water-adapted reptiles that lived during the time of the dinosaurs, including plesiosaurs, ichthyosaurs, mosasaurs, and nothosaurs. They were carnivores that generally ate fish and other marine organisms.
A: Coelophysis most likely reproduced by laying eggs. Thousands of fossilized Coelophysis skeletons were found at the Ghost Ranch, New Mexico, USA. Many of them contained the bones of young Coelophysis in their abdomens - this evidence showed that Coelophysis either ate its young or gave birth to live young. It is more likely that they were cannibalistic (like many modern-day reptiles) since the tiny Coelophysis skeletons were not embryos, but young Coelophysis.
Not at all. T. rex was puny compared to many plant-eaters. There were also a few carnivores that were longer.
Horn is an organic substance made mostly of the fibrous protein called keratin (our nails, hair, bull's horns, feather quills, and horse hoofs are also made of keratin). Some dinosaurs, like Triceratops, had bone-like "horns" that may have been covered by a layer of keratin (horn) when they were alive. Since keratin does not fossilize well, we do not know if horn covered the bone and if so, how much it was.
A: No, but Pterodactyls are closely related to the dinosaurs.
Not unless you count the birds.
A: Only one set of Stegosaurus footprints have been found so far, and they were stolen from Western Australia in 1996.
For a page on raptors (dromaeosaurids), click here.
A: Yes, eggs can fossilize.
A: Triceratops fossils have been found in western North America.
A: That's hard to do, because most of the fossils are incomplete and for most, only one fossil has been found, making any sweeping generalizations about size seem silly (you don't know if that particular dinosaur was big, average, or small). The biggest theropods include T. rex, Spinosaurus, Carcharodontosaurus, Bahariasaurus, Giganotosaurus, Acrocanthosaurus, Epanterias, Allosaurus, Torvosaurus, etc.
Yes. Dinosaurs did not have fleshy external ears like we do, but they did have ears (probably just a hole on each side of the head, like modern-day reptiles) and they could hear.
A: There were probably many, many dinosaurs that ate eggs (eggs are always a popular food as they are nutritious, not poisonous, and don't fight back). Oviraptor (which means egg theif) was a dinosaur that was originally thought to eat eggs, since its fossil was found near eggs. It was later determined that the eggs were Oviraptor eggs, and Oviraptor was likely a parent, and not necessarily an egg thief (Oviraptor may have eaten eggs, but it was probably not eating the eggs it was found with).
A: Click here for pages on T. rex.
Pachycephalosaurus was a plant-eater.
A: Mike Keesey's dinosaur site and the UCMP are both excellent.
A Paleocene duckbill find was announced by J. E. Fassett, S. G. Lucas, R. A. Zeilenski, and J. R. Budahn. I haven't heard anything about it since - these fossils may have been reworked bones from the Cretaceous period.
A: The Cretaceous period.
If you mean Scutellosaurus, it had hundreds of bony plates (of six different varieties) that acted as armor. It also had claws, teeth, and a tail that may have been used for defense. Heavily built means that it had solid (not hollow) bones and was a relatively heavy animal (for its length).
The brachiosaurids (like Ultrasauros, Sauroposeidon, and Brachiosaurus) are the tallest known dinosaurs.
One lineage of theropod dinosaurs, the maniraptors, gave rise to the birds. Although the ancestral dinosaurs died out, the birds continued to thrive.
ZoomDinosaurs, of course.
Click here for a page on Utahraptor.
For information on Brachiosaurus, click here. It was an herbivore (probably not aggressive) that reproduced sexually and laid eggs.
A: The ornithomimid dinosaurs (ostrich-like dinosaurs that included Gallimimus) were faster than raptors (and perhaps there were other faster land animals).
A: In 1999, Argentinian paleontologist Rodolfo Coria reported finding theropods larger than Giganotosaurus in Neuquen province, Argentina, but I have heard nothing of his find since then (no even the name of the genus, if it is a new genus). There is no dinosaur genus named Massodonosaurus.
A: For a list of all the known dinosuar genera, click here. For each genus, there were probably many species - for information on a genus, click on it. For a list of the known dinosaur families, click here.
No one knows.
A: Click here.
A: Click here.
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