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Zoom Dinosaurs DINOSAUR QUESTIONS |
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A:
That's it. The Mesozoic Era was divided into the Triassic period, the Jurassic period and the Cretaceous period. For the divisions of these periods, click here.
A:
Many more were plant-eaters. For more information on dinosaur diets, click here.
A: Dinosaurs evolved from other reptiles (socket-toothed archosaurs). For more information, click here.
A: For Jurassic period plants, click here.
A:
Mass extinctions vary in scale. Not all mass extinctions were huge, like the end-Permian mass extinction (which affected most of the organisms on Earth). Some mass extinctions are smaller - they are called minor mass extinctions. A minor mass extinction is a smaller-scale event than a major mass extinction and is larger than the typical rate of background extionctions. For example, there were minor extinctions during the Triassic period (when many early reptiles went extinct) and two during the Jurassic period (in the second, many sauropods and stegosaurs went extinct).
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For a page on Pterodactyls (pterodactyloids), click here.
A: Click here.
A: No, people evolved millions of years after the dinosaurs went extinct.
A:
In 2000, Jack and Celeste Horner, Bob Harmon, Larry Boychuk, and Greg Wilson found five T. rex fossils near the Fort Peck Reservoir in Montana, USA. This was the first time more than one T. rex was found in one spot.
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Click here for a page on Pangaea.
A:
Click here.
A: Triceratops are low-lying plants.
A:
1. T. rex ate large plamt-eating dinosaurs like Triceratops. 2. Yes. 3. They hatched from eggs. 4. Click here. 5. Probably not much.
A: The dinosaur whose fossil is the youngest (making it the last known dinosaur) was a hadrosaurid that dates from after the K-T extinction. For more information, click here.
A: It was a small, early, meat-eating dinosaur.For more information, click here.
A: For a page on dinosaur life spans, click here. For a page on what they ate, click here. No one knows where they slept.
A: Megalodon. For more information on the earliest dinosaur finds, click here.
A: Ornithischians and Saurischians
A:
Click here.
A: Stegosaurus probably held its tail off the ground.
A: There are more than 9 animal phyla (perhaps your teacher is ignoring the phyla that contain obscure animals). Some of the major animal phyla include: Porifers (sponges), Placozoa (the simplest known) , Ctenophora (comb jellies), Cnidaria = Coelenterata (jellyfish, hydras, coral, etc.), Platyhelminthes (flat worms like the tape worm), Rotifers (rotifers), Nematodes (round worms like the Trichina worm that cause trichinosis), Annelida (segmented worm like the earthworm), Mollusca (octopus, squid, nautilus), Arthropoda (insects, spiders, crustaceans), Echinodermata (seastar, sea urchin), and Chordata (with a notochord, including fish, amphibians, reptiles, mammals and other advanced animals). Also see UCMP.
A: Click here.
A: Click here.
A:
For a page on Cretaceous period plants, click here.
A: It isn;t known that dinosaurs were warm blooded. Some may have been (but it also possible that none were). Some advantages of being warm blooded (homeothermic) included the ability to be active during cold weather, at night; they can also be active for long periods of time and can live in very cold environments.
A: Sauroposeidon was found in Oklahoma.
A: Forelimbs are the front legs of an anumal.
A: Plesiosaurus was a swimming reptile that lived during the time of the dinosaurs. It was not a dinosaur. For information and a printout on Plesiosaurus, click here.
A: They lived during the Mesozoic Era.
A:
Woolly mammoths appeared during the Cenozoic Era, the Quaternary Period, and the Pleistocene Epoch.
A: For a page of extreme dinosaurs, click here.
A: Argentinosaurus had four legs.
A:
They have been - click here.
A: Click here.
A: Plesiosaurs, Ichthyosaurs, and Pterosaurs (like Pteranodon) were reptiles that lived during the time of the dinosaurs but are not classified as dinosaurs (they are sufficiently different to be placed in different groups). The birds probably evolved from the dinosaurs, and are therefore in the same. Archaeopteryx's classification is debated; it has many characteristics of a bird and many characteristics of a dinosaur (but it is generally classified as the earliest bird).clade.
A:
In 2000, Jack and Celeste Horner, Bob Harmon, Larry Boychuk, and Greg Wilson found 5 T. rex fossils on Federal property (near the Fort Peck Reservoir) in Montana, USA. This was the first time more than one T. rex was found in one spot.
A:
Some of the earliest mammals (from the Triassic period) were were tiny, shrew-like mammals. Some of these early mammals included Eozostrodon, Deltatheridium, Jeholodens,
Megazostrodon, Triconodon, and Zalambdalestes
A:
Click here.
A:
For Triassic period dinosaurs, click here. For early Jurassic period dinosaurs, click here (when there, there are links to other Jurassic and cretaceoud period dinosaurs).
A: The birds.
A:
Click here.
A: This sounds suspiciously like your entire homework assignment. First of all, Sharsk ARE fish. Sharks evolved before dinosaurs. For a table listing the main differences between sharks and bony fish, click here. For a page that lists the biggest and smallest sharks, click here. For the number of shark species, click here.
A: Most dinosaurs ate plants, many ate meat, and a few are both. For information on dinosaur diets, click here.
A: Utahraptor was about 20 feet (6.5 m) long and may have weighed about 1 ton.
A: Brontosaurus (now called Apatosaurus) fossils have been found in Colorado, Oklahoma, Utah, and Wyoming, in the USA.
A: Paleontology is the study of ancient life (including dinosaurs), often by examining fossils.
A: Pteranodon had a 25 foot (7.8 m) wingspan.
A:
No dinosaurs could fly, but there were flying reptiles that lived during the time of the dinosaurs (called pterosaurs). There were many types of pterosaurs, some well-known ones include Pteranodon, Pterodactylus, and Quetzalcoatlus. They were all meat-eaters (many of them ate fish).
A:
It varied throught time. When the dinosaurs lived (during the Mesozoic Era), temperatures were higher than they are now and sea levels were also higher because there was no polar ice.
A: Megalodon, the ancient shark, is thought to have been about 40 feet (12 m) long or even more.
A: For a page on Ouranosaurus, click here.
A: No, Homo sapiens (people) evolved about 30,000 years ago and the dinosaurs went extinct 65 million years ago.
A: It is theoretically possible, but no intact dinosaur DNA (genetic material) has been found.
A: Yes, for a list of them,click here.
A: For the earliest dinosaur discoveries, click here.
A:
Fossilized footprints are a type of ichnofossil, so an ichnologist would study them (ichnology is a sub-branch of paleontologgy).
A:
The so-called human was a theropod dinosaur, and the location was Glen Rose, Texas (by the Paluxy River).
A: Sauropods are estimated to have had a life span of about 100 years.
A:
For a list of fossils state by state, click here.
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For a list of all the dinosaur genera names, click here. For pictures of some of them, click on their names on that page.
A: Triceratops is the state dinosaur of South Dakota. For other state dinosaurs, click here.
A:
This isn't known.
A: Only one T. rex footprint has been found, and it was about 1.55 feet (46 cm) long.
A: Spikes were probably used as protection from predators.
A:
Probably Stegosaurus.
A: A lot of dinosaurs have been found on the Isle of Wight, including Aristosuchus, Hypsilophodon, Ornatotholus, Vectisaurus, and Yaverlandia.
A: T. rex ate large, plant-eating dinosuars, like Triceratops.
A: I answered your questions a few days ago - scroll down for the answer.
A: Click here for a drawing of a T. rex skeleton.
A: The Mesozoic Era.
A:
For a page on all of the different dinosaur fossils that have been found, click here. For most of these genera, only a few fossilized bones have been found, but for a few, many individuals have been found.
A: No one knows.
A:
They didn;t evolve into humans - they evolved into birds.
A: 200 million years ago, North America was next to Europe, and was breaking away from South America.
A: Dinosaurs lived during the Mesozoic Era, which is divided into the Triassic Period, the Jurassic Period, and the Cretaceous Period. Dinosaurs evolved about 130 million years ago and died out 65 million years ago.
A: Diplodocus lived during the Mesozoic Era (the era during which all the dinosaurs lived). More specifically, Diplodocus lived during the late Jurassic Period, from 155 to 145 million years ago. (the middle of the Mesozoic Era).
A: About 20 years. For more information on Komodo Dragons, click here.
A: No one knows. Scientists have only found a fraction of the species that existed (and no one knows what the population numbers for these species were).
A: Fossilized nests have only been found for a lfew dinosaurs. Maiasaura, for example, made nests that were holes scooped out of the ground, about 6-7 feet in diameter (1.8-2 m); they contained up to 25 grapefruit-sized eggs each. Different dinosaur eggs varied in size from about an inch in diameter to the size of a football. For more information on dinosaur eggs and dinosaur reproduction, click here.
A: The lizard Bavarisaurus was found in a Compsognathus.
A: Yes, it was real. Dilophosauurs lived during the during the early Jurassic period, about 201 to 189 million years ago. For information on this meat-eating dinosaur, click here.
A: I've never heard those songs.
On May, 28, 2001, Laurie W. wrote, saying:
I am writing in response to Todd K's, San Diego, Ca. letter written on March 19,2001. I am a music teacher and use an old record called "Our Dinosaur Friends-For the Early Years." I believe it is the recording Todd is looking for. It contains the song "Pterodactyl" which Todd quotes in his letter. It also contains the songs "My name is Stegosaurus", "Brontosaurus", "Triceratops", "Tyrannosaurus Rex", "Our Dinosaur Friends Song", and a "Narration". It was available from : American Teaching Aids, Inc., Post Office Box 1406, Covina, Ca. 91722. I have no idea if the company is still in business since the record I have is from 1978. It says that they also have an Intermediate Years (ATA 3226) of "Our Dinosaur Friends" available that includes: Woolly Mammoth, Trachodon, Allosaurus, Quetzalcoatlus, Dimetrodon, Brachiosaurus, and What's a Dinosaur. The lyrics are written on the back of the record. The item number for the Early Years is ARA 3225. Good luck! Please write back and let me know if you were able to find the recording.
Laurie W.
A:
Click here.
A: The scientist who describes the genus (or species) names it; the name has to be approved by a scientific committee (the International Commission on Zoological Nomenclature). For more information, click here.
A: Most of the Pterodactyloids probably flapped their wings to fly, except the larger species (like Quetzalcoatlus). For more information on pterodactyls, click here.
A:
Yes, for more information, click here.
A: Click here for alist of all the known dinosaur genera.
A: Very few dinosaurs are known to have been omnivores. Oviraptor and Ornithomimus were omnivores. For more information on dinosaur diets, click here.
A: Not that closely. They were both tetanurans theropods. Giganotosaurus was a carnosaur and an allosaurid; T. rex was a coelurosaur and a tyrannosaurid.
A: I did a quixk search in Google.com, but couldn't find any sites on Pterodactyls in French. For a page on Pterodactyls in English, click here.
A: No one knows exactly why most animals, including Megalodon, went extinct.
A: T. rex lived in forested areas and ate large plant-eating dinosaurs, like Triceratops. For intersting facts and information on T. rex, click here.
A:
Most of the roughly 1,000 known genera of dinosaurs are known from their bones - only a few are known from other fossil evidence (like fossilized footprints, tail tracks, etc.).
A: I've never heard of any information on its reproduction.
A: No one knows the sleeping habits of any of the dinosaurs. Stegosaurus walked on four legs (it was a quadruped). For more information on Stegosaurus, click here.
A:
The original bone tissues don't survive - they are slowly replaced by rock-like minerals. For a page on how fossils form, click here.
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I don't know. Perhaps there will eventually be a new type of analysis that will be able to tease that information from fossilized skin.
A: For a pterosaur, click here. For a plesiosaur, click here. For a cynodont, click here.
A: The Cretaceous period began 144 million years ago and ended 65 million years ago. For more information on the Cretaceous period, click here.
A: Erlikosaurus (meaning "Erlik's lizard"; Erlik is the king of the dead in Mongolian myths) was a meat-eating dinosaur. This theropod was about 16-20 ft (5-6 m) long and lived during the late Cretaceous period. Fossils of this . therizinosaur have been found in Mongolia. Only a partial skeleton (including a skull) has been found. Erlikosaurus was named by Barsbold and Perle in 1980. The type species is E. andrewsi.
A:
Yes, Protoceratops was an early ceratopsian. For more information on Protoceratops, click here.
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