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Zoom Dinosaurs
Current Questions Top 16 Questions Old Questions Ask A Question
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By Date By Type of Dinosaur General Dino. Qns. Qns. About Other Animals Geological Era Qns.

Old Questions
May-Oct. 2002
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Questions from early Feb. 2001
Please check the
Top Sixteen Dinosaur Questions
and the
Dino and Paleontology Dictionary first!

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?

I enjoy hearing from visitors. You can send your questions and I'll answer them as soon as possible. Thank you for writing! (Due to the large volume of questions coming in, I can't answer them all. I'll try to answer as many as I can, as soon as I can. Jeananda Col, Washington, USA)

Don't forget to scroll down to find the answer to your question - they're in reverse order by the date they were asked.

Q: how big are ordinary sized Saber-toothed tiges?And how big are there front jaw bone teeth?
from Michael B., Bethlehem, GA, US; February 15, 2001

A: There were many different types of saber-tooth cats. They varied in size; Smilodon was the biggest - it was about the size of a modern-day lion. It's long incisors were up to 7 inches (18 cm) long. For more information on Smilodon, click here.

Q: how many diosaurs there are
from anahit, nothhollywood, ?, ?; February 15, 2001

A: There are about 1,000 known genera (this probably represents only a a fraction of the genera that existed).

Q: How did Tyrannosaurs Rex get its name?
from Kristina D., Miami, Florida, USA; February 15, 2001

A: T. rex was named in 1905 by the paleontologist Henry Fairfield Osborn. For more informationon T. rex, click here.

Q: where do komoto dragon's live?
from joseph v., ada, mi, usa; February 15, 2001

A: Many live on Komodo Island. For a page on Komodo dragons, click here.

Q: What does the name ornitholestes mean?
from ed t, bellingen, nsw, australia; February 15, 2001

A: ornitholestes means "bird robber." For more information on Ornitholestes, click here.

Q: Where can one find dinasaur tracks in Connecticut?
from Betsy C., Southbury, CT, ?; February 15, 2001

A: You can see fossilized trackways of the dinosaur called Eubrontes at Dinosaur State Park, 400 West Street , Rocky Hill, CT. Park.

Q: Can you help us find facts about a dinosaur called Hypelosurus?
from Trent and Cole, Coralville, Iowa, U.S.A.; February 15, 2001

A: For information on Hypselosaurus, cick here.

Q: What dinosaurs lived during the Triassic Period?
from Dianne C., Tewksbury, Ma, Us; February 15, 2001

A: Click here.

Q: what is amonite
from ?, ?, ?, ?; February 14, 2001

A: Ammonites were early mollusks that are now extinct.

Q: What is the order, sub-order, and family of the Dilophosaurus?
from ?, ?, ?, ?; February 14, 2001

A: Click here.

Q: How many bones was in a stegosaurus?
from Lindsay G., Moselake, Washington, usa; February 14, 2001

A: About 200 or so.

Stegosaurus skeleton

Q: Is Achillobator a dromaeosaur
from Ben F, ?, ?, ?; February 14, 2001

A: Yes, Achillobator was probably a dromaeosaur (informally called raptors), but there may be fossils belonging to two dinosaurs at the site where Achillobator was found in Mongolia (that might explain why the skull and pelvis were so similar to that of a carnosaur, but the toes were like those of a dromaeosaur).

Q: can you give me any info on Jack Horner the Archeologist such as his birth date and other information that would help me follow his carrer and or child hood
from Migdalia R, Apple Valley, Mn, USA; February 14, 2001

A: Click here for some information on Horner.

Q: I have two questions: 1) How many known Parasaurolophus fossils are there? and 2) How is the artwork for this site done(I don't want to copy it or anything, I was just curious)?
from russel p, seattle, wa, usa; February 13, 2001

A: I dno't know the exact number of Parasaurolophus fossils that have been found, but both adults and at least one juvenile have been found.

I'm not sure what else I can say about my drawings (beyond what I answered on Friday).

Q: how did holocene get it's name
from gfdhgx, jhf, hdt, trsd; February 13, 2001

A: Holocene means "entirely recent" in Greek.

Q: What was the size and weight of a Barosaurus?
from Andrea N, Beloit, WI, USA; February 13, 2001

A: Barosaurus was about 66 to 88 feet (20-27 m) long and weighed roughly 44 tons (40000 kg). For a page on Barosaurus, click here.

Q: What was iguanodon's most interesting feature?
from ........................., ............, ..........................., ........................; February 13, 2001

A: It depends on what you find interesting. Iguanodon had strange, conical thumb spikes. It also had teeth similar to those of the iguana. For more information on Iguanodon, click here.

Q: Where in Montana was Egg Mountain located?
from Brooke A, Amherst, NH, US; February 13, 2001

A: It's about 20 miles west of Choteau, Montana.

Q: How much does Monoclonius weigh?
from Lauren,Madhu,Alex,, Coralville, Iowa, USA; February 13, 2001

A: Monoclonius may have weighed about 4780 pounds (2170 kg). For more information on Monoclonius, click here.

from MICHAEL C, LENOIR, NC, USA; February 13, 2001

A: Ornitholestes fossils have been found in Wyoming and Utah, USA. For more information on Ornitholestes, click here.

Q: What kind of rocks are fossils in?
from KA, Austin, tx, ?; February 13, 2001

A: Fossils are usually found in sedimentary rock.

Q: what animal is bigger than any dinosaurs
from Val, srf, ontario, canada; February 13, 2001

A: The blue whale.

Q: What did DIMETRADON use its sail for?
from C.C, Brentwood, N.Y, U.S; February 13, 2001

A: Dimetrodon probably used its sail to regulate its body temperature. For more information, click here.

Q: Where can I find information on Hypsilophodon Dinosaurs?
from Miranda H, Lancaster, Ohio, USA; February 12, 2001

A: For a page on Hypsilophodon, click here.

Q: How do dinosaurs fossilize?
from Samuel E., Tulsa, Oklahoma, U.S. of A.; February 12, 2001

A: For a page on how fossils form, click here.

Q: What do scientists think a megladon looked like?
from Michael W, Jacksonville, FL, USA; February 12, 2001

A: Scientists think that Megalodon looked like a streamlined version of the great white shark.

Q: from what year to what year did dinasaurs roam the earth?
from Stacey M, cOLLINGDALE, PA, USA; February 12, 2001

A: Dinosaurs lived during the Mesozoic Era, from about 230 million years ago until 65 million years ago.

Q: what is a therapod?
from joseph, stoneham, ma, middlesex; February 12, 2001

A: Theropods were the meat-eating dinosaurs, like T. rex, Allosaurus, Albertosaurus, Velociraptor, and Spinosaurus.

Q: What is the name of the flying dinosaur?
from Brianna, Melrose, MA, USA; February 12, 2001

A: The flying reptiles that lived during the time of the dinosaurs were called pterosaurs.

Q: How did dinosaurs get so big?
from Clinton L., Amarillo, Texas, USA; February 12, 2001

A: No one knows why the some dinosaurs got to be so big.

Q: How did mamenchisaurus protect themselves?
from Alexis B, Bakersfield, Ca., US; February 12, 2001

A: Mamenchisaurus' size was probably its best protection. It also had claws on its toes and a long tail that may have been used for protection.

Q: How fast did the velociraptor run?
from kyle d., cincinnati, oh., u.s.; February 12, 2001

A: Velociraptor may have been able to run up to roughly 40 mph (60 km/hr) for short bursts.

Q: Why is it important that we know whether a dinosaurs were cold or warm blooded?
from Stephanie D, Haleiwa, Hawaii, USA; February 11, 2001

A: If that were known, it would tell you a lot about their behavior, how much they needed to eat, how active they were, what climates they could survive in, and other information.

Q: How do you do the art on this website?
from russell p, seattle, wa, usa; February 11, 2001

A: Using Aldus Superpaint.

Q: How do palientoligists tell how old a fossil is?
from B.G., San Diego, California, U.S.A; February 11, 2001

A: Click here for a page on dating fossils.

Q: did megaraptor and giganotasaurus live at the same time?
from anthony, ?, ?, usa; February 11, 2001

A: Megaraptor lived during the late Cretaceous period, about 90-84 million years ago. Giganotosaurus lived about 95 million years ago.

Q: What is the hight, length, and weight of the Plesiosaurs?
from sammy g, Nashua, NH, USA; February 11, 2001

A: There were many different plesiosaurs. For some information on them, click here.

Q: I need a map of where the Brontosaurus fossils have been found if you know a place where I can get I would appreciate it.
from Brittny H., ?, ?, ?; February 11, 2001

A: Click here for more information on Brontosaurus (now called Apatosaurus).

Q: Has there ever been a dinosaur egg hatched to produce a live dinosaur?
from david c, columbus, Ohio, United States; February 11, 2001

A: Not since the Mesozoic Era.

Q: What is the classification of the Wooly Mamouth?
from Kurt B., Glassboro, New Jersy, USA; February 11, 2001

A: For this and other information on the woolly mammoth, click here.

Q: What's Heteradontasurus's suborder?
from ?, ?, ?, ?; February 11, 2001

A: Heterodontosaurus belonged to the suborder Ornithopoda (ornithopods). For more information on Heterodontosaurus, click here.

Q: Even though this doesnt matter about dinosaurs, but I need this answered, please? Did Eohippuss(also known as Hyracotherium) have stripes? If so, why did they lose their stripes?? I need this answer quickly! This is my third request. Thanks!
from Chun C., Edison, New Jersey, U.S.A; February 11, 2001

A: I wasn't aware that any Hyracotherium (also known as Eohipppus) fur had been found. An animal's coloration often changes as its habitat changes.

Q: I need info on the dinosaur the Champsosaurus. I need to now where the dino was frist discovered the type of hip the dino had and it's natural enemies. if you have info on where I can research this that would also be helpful. Thanks Brian
from Brian C., Midland Park, NJ, USA; February 11, 2001

A: Champsosaurus wasn't a dinosaur - it was another type of reptile. For information on Champsosaurus, click here.

Q: Where did the Pteranodon live? I need this information for a report. Thanks
from Patrick, Burlington, NJ, USA; February 10, 2001

A: Pteranodon fossils have been found in the USA (in Kansas) and in England. For more information on Pteranodon, click here.

Q: What king was the Tyrannosaurus named after
from Alex G., miami, Florida, United States; February 10, 2001

A: Tyrannosaurus rex was not named after any particular king. Rex simply means king in Latin.

Q: Where can I get a classification chart of the Brontosaurus order, suborder, infraorder, family, genus and species? Or if you have it can you give it to me I need it for a project. ASAP.
from Brittny H., ?, Ga, U.S.; February 10, 2001

A: Apatosaurus (which used to be known as Brontosaurus) belonged to the:


Q: Which dinosaur would be considered the opposite of a brachiosaurus
from Robert, Queens, New York, USA; February 10, 2001

A: I have no idea what you mean.

Q: What did they eat
from Ryan M, Mahopac, New York, U S A; February 10, 2001

A: For a page on what dinosaurs ate, click here.

Q: Where can I find a map of the location where the brontosaurus fossils were found?
from Alex H., ?, Ga, ?; February 10, 2001

A: Click here and scroll down towards the bottom of the page.

Q: what fosil made mary anning famous?
from ellen g, kankakee, il, usa; February 9, 2001

A: Ichthyosaurus primarily, but Mary Anning found many important fossils.

Q: wher can we fine sedemantarey rocks
from joseph .R, pa, penncilvania, bethlem; February 9, 2001

A: Sedimentary rocks are found all around the world. Some sedimentary rocks include sandstone, limestone, and shale. A lot of sedimentary rock is buried, but there are exposed sedimentary rock outcroppings like cliffs, river banks, road cuts, quarries, and desert badlands.

Q: What period is Dyslocosaurus from?
from Adam P., Frederick, MD, USA; February 9, 2001

A: Dyslocosaurus lived during the late Jurassic period.

Q: what period did pangea exist
from ?, pawtucket, rhode island, usa; February 9, 2001

A: For a page on Pangaea, click here.

Q: How do the Paleontologists transport the bones or Fossles?
from Katie D., Grand Junction, Colorado, United States of America; February 8, 2001

A: It depends on the condition and size of the bones, but generally fossils are encased in plaster (to protect them during transport) and carefully crated from the field to a lab.

Q: Stegosaurs: Were their bones solid like reptile bones or hollow inside like bird bones?
from Courtney M., Alsip, Illinois, United States; February 8, 2001

A: Stegosaurus had solid bones.

Q: What did pachycephalosaurus use his boney skull for?
from gavin s, goleta, ca, usa; February 8, 2001

A: Pachycephalosaurus may have used its thick skull to butt other animals, but this theory is in debate. For more information on Pachycephalosaurus, click here.

Q: How did the dinosaurs reproduce themselves
from Isis, miami, Florida, united states; February 8, 2001

A: For a page on dinosaur reproduction, click here.

Q: Where can i find an article about a 70-90 million year old dinosuar embryos with skin preserved inside!!!???????
from Nillie D., Woodland hills, C.A., U.S.A; February 8, 2001

A: Click here.

Q: 1. How big was a triceratops? 2. How much did triceratops weigh? 3. What did triceratops eat? 4. What might have eaten the triceratops? 5. When did the triceratops live? 6. How did the triceratos move? 7. How long did the triceratops live?
from bob m, hicksville, IA, U.S; February 8, 2001

A: I've never seen an estimate of Triceratops' life span. For the other information on Triceratops, click here.

Q: How can I use plastic 1:40 scale models of dinosaurs to estimate their weight as living animals? I need step by step instructions, please.
from Brad, Woodville, ON, Canada; February 8, 2001

A: First find the volume of the model. The easiest way is probably to measure how much water it displaces. For example, if you start with a large measuring cup that contains 1 liter of water of water, then put the entire dinosaur model in it, the water level will be higher. The difference in the last number and the beginning number (1 liter in this case) gives you the volume of the scale model.

Next, you have to determine what the density of your real dinosaur might have been (density has units of weight per volume) - this is the trickiest part and one you must be prepared to justify. The best way to estimate this is to find a modern day animal with similar anatomy (making sure they have the same type of bone structure [hollow or solid], horns, armor, etc.). Also make sure your units are in the same system (metric or otherwise) as the volume measurement.

Multiply the scaled dino's volume times your estimated density to get the weight of a tiny version of the real dinosaur.

Then multiply the weight of the little dinosaur by the scale factor cubed (40 times 40 times 40 in your case) to get the weight of the large critter.

Q: Is "Triceratops" Greek or Latin for "Three horned face"? Can you answer by 2/9/01? Thanks!
from Emily K., Bloomington, IN, USA; February 8, 2001

A: Greek. For a page on dinosaur name etymology (word origins), click here.

Q: I don't mean to be rude, but why won't you answer my questions? I sent one back in mid-January and there is still no response posted. I requested more specific information on Cretaceous South American dinosaurs, since most of the ones listed on this site (and all the other ones I've been to)have very little or no data on them. Yet you immediately answer incredibly simple questions that anybody with the slightest motivation could EASILY find on your site. Unlike these lazy individuals, I have spent considerable time and effort searching for the info I need to write a book, and still found practically nothing. You even answered questions totally unrelated to dinosaurs (Where can I find info on King Jr.?). Please help me, I don't where else to go.
from KelP, Quincy, MI, USA; February 7, 2001

A: I have no idea what your question is. I receive hundreds of questions each day and answer as many as I can. I usually answer the ones I find the most interesting and the ones I know the answers to (oddly enough) - I do not save the old questions. By the way, I started this page at the request of a first grade teacher who wanted to have a place where her students could ask dinosaur questions.

There are pages on Cretaceous dinosaurs and pages on South American dinosaurs. When you're on those pages, find the dinosaur(s) you're interested - if we have a page on that dinosaur(s) their name will be a link to a page on that dinosaur.

Q: What kind of plants were there back when the dinosaurs lived.
from monica m., Laredo, Texas, United States; February 7, 2001

A: Click here

Q: What was the climate like when the dinosaurs roamed the earth.
from Jordan S, ardmore, Pennsylvania, U.S.A; February 7, 2001

A: It was warmer than it is now and the seasonality was not as strong (the difference between summer and winter was not at all as extreme. For more information on the Mesozoic Era (the time when the dinosaurs lived), click here.

Q: Why are dinosurs so big?
from Robert N, Gates Mills, Ohio, U.S.A.; February 7, 2001

A: Only some of the dinosaurs were huge. They ranged in size from enormous to the size of chickens. No one knows why the big ones were so big.

Q: About how long ago did the Plesiosaur live
from Anthony C., Belmont, C.A, U.S.A; February 7, 2001

A: There were a lot of different types od plesiosaurs. They lived lived during the Mesozoic Era, from the early Jurassic period (about 200 million years ago) to the end of the Cretaceous period (about 65 million years ago). For more information on plesiosaurs, click here.

from MALYNDA, WINDER, GA, USA; February 7, 2001

A: Click here for a page on mammoths.

Q: Is there any dinosaur bones in spokane? And what are all the dinosaurs names?
from Brittanie A, Spokane, Wa, USA; February 7, 2001

A: No dinosaur fossils have been found anywhere in the state of Washington. For a list of dinosaur fossils found state by state, click here.For a list of all known dinosaur genera, click here.

Q: Could I Have Some Info On The Dinosaur Extinction Theory That To Many Eggs Being Stolen By Predators Made To Few Dinosaurs For Them To Live.
from Ann C, Chicago, Il, USA; February 7, 2001

A: That theory isn't really taken very seriously. For example, it doesn't explain why so many other other organisms (including many plants and marine organisms) went extinct. For a page on alternate dinosaur extinction theories, click here.

Q: What are all the Dinosaurs names
from Jonathan O, Spokane, Wa, USA; February 7, 2001

A: For a list of all known dinosaur genera, click here.

from MN, WINNSBORO, TX, UNITED STATES; February 6, 2001

A: Dinichthys (also called Dunkleosteus) wasn't a dinosaur - it was an ancient, armored fish. It was up to 11.5 ft (3.5 m) long; I don't have an estimate of its weight.

Q: What are all the names of the dinosars? Or the web-sites that give info on them.
from Dayna, Reno, NV, U.S.A.; February 6, 2001

A: Click here.

Q: How does each dinosaur's name reflect its habits and structure?
from l.p., irving, texas, u.s.; February 6, 2001

A: Click here.

Q: What does the name Troodon mean?
from Shanika W, Memphis, TN, US; February 6, 2001

A: Troodon means "wounding tooth."

Q: How long was a corythores?How tall was it? What time did it live? What was the thing on top of it's head?
from Ian H, Bedford, pensilvaneya, snakspring; February 6, 2001

A: For a page on Corythosaurus, click here.

Q: what is the lifespan of a dinosaurs?
from chantel c, ?, ?, ?; February 6, 2001

A: For a page on dinosaur life spans, click here.

Q: how did planet-eating dinosaurs in the Jurassica period compensate for their lack of grinding teeth
from Jaacqueist B., St.Louis, MO, U.S; February 6, 2001

A: Some plant-eaters had gastrolths, stones that they swallowed (the stones remained in the stomach area, and helped grind up food). Some, like Ankylosaurus, may have also fermented their food.

Q: for school progert need to find out witch dino. name means (fused lizard)and in the mesozoic era witch scientist classify it as a winged reptile..and witch dino is a egg robber
from kevin b, new salem, pa, ?; February 6, 2001

A: Ankylosaurus means "fused lizard" Oviraptor means "egg robber," but it was misnamed. I'm not sure what you're asking about the Pterosaurs (flying lizards that lived during the Mesozoic Era).

Q: What is an amonite fossil?
from Carol N., Barre, MA, USA; February 6, 2001

A: For a page on ammonites, click here.

Q: How long ago did the Barosaurus rule?
from ?, ?, ?, ?; February 6, 2001

A: I don't know about "ruled" - perhaps "mowed" would be more descriptive. Barosaurus lived during the Jurassic period, about 156 to 145 million years ago. For more information on Barosuarus, click here.

Q: During what period and when did the dinosaurs first appear?
from Ryan B, St Louis, Missouri, United States; February 6, 2001

A: Dinosaurs first appeared during the Triassic period, about 230 million years ago.

Q: where are most komoto dragons from?? how long have they been on earth for? what do they look like? what do they eat? how do they protect them selves from there enamies? whats poisones and dangerous about there body?
from aj r, kitchener, ontario, canada; February 5, 2001

A: For a page on Komodo dragons, click here.

Q: Do you have a place where I could hear what a Parasauralophus sounded like when it raored.
from Ashley E, Monument, Colorado, united states; February 5, 2001

A: Try this link.

Q: I need some information on Parasauralophus.
from Ashley E, Monument, Colorado, united states; February 5, 2001

A: Click here for information on Parasaurolophus.

Q: For the dinosaurs extiction what is the most likely thing that happened to them? explain! answer quick due tomorrow for a extra-credit question a test!!!
from Jordyn S., Chicago, illinois, USA; February 5, 2001

A: Click here.

Q: Are there more carnavers or herbevors?
from Lane W, Gladwater, Tx, America; February 5, 2001

A: There were many more herbivores (plant-eaters) than carnivores (meat-eaters). For information on dinosaur diets, click here.

Q: Could T.Rex kill a Triceratops? What were the animals in his time that he could not kill?
from Munesh, Johor Baru, Johor, Malaysia; February 5, 2001

A: Yes, Triceratops bone fragments have been found in fossilized T. rex dung. It probably could not kill the larger sauropods, like Alamosaurus.

Q: what family does a stegasouras belong in?
from Farah A., Brampton, 0ntario, Canada; February 5, 2001

A: Stegosaurus belongs to the family Stegosaurinae.

Q: List ALL POSSIBLE enimeys of Pachycephalosaurus quick, i have a report on that dinosaur. How tall was he? What did he eat? How fast could he run? Was he smart? Could he beat a T-rex? Did they care fot their younge? Tellme A.S.P! Or AS SOON AS POSSIBLE! Thanks you rock! (:(: u rock!
from Lean, Lake Oswego, Oregon, U.S.A; February 5, 2001

A: Pachycephalosaurus lived during the late Cretaceous period, about 76 to 65 million years ago. For other dinosaurs that lived during this time, click here. Look for dinosaurs in red (meat-eaters) who lived in the same area as Pachycephalosaurus (Western North America). I doubt it could hurt an adult T. rex very much. No one knows if they cared for their young, but they may have.

Q: I am a 3rd grader doing a report on the Compsognathus Dinosaur and I am looking for information on what they eat,
Thank you

from Jessie M, Glace Bay, Nova Scotia, Canada; February 5, 2001

A: Compsognathus was a chicken-sized carnivore (meat-eater). It probably ate insects, small lizards (like Bavarisaurus), and other small animals. For more information on Compsognathus, click here.

Q: What is the difference between the Jurassic period and the Triassic period?
from Robin D., Ridgecrest, CA, USA; February 5, 2001

A: Millions of years, geography, climate, sea level, and the organisms that existed. For information on these periods, click here.

from AMANDA C., ALPHARETTA, GEORGIA, USA; February 5, 2001

A: Reptile means "to creep" in Latin. For pterosaurs (flying reptiles), click here. An omnivore eats both plants and meat (humans are onmivores). The asteroids (65 million years ago) hit off the Yucatan Peninsula and in the Indian Ocean (and perhaps other locations yet uknown).

from BRITNEY, ???????????, !!!!!!!!!!!!!!!!!, U.S.A; February 5, 2001

A: Thanks. No, Troodon couldn't kill a T. rex.

Q: what does the REX in t-rex stand for?
from Zeon, ?, ?, Usa; February 4, 2001

A: Rex means "king' in Latin. For more information on T. rex, click here.

Q: what types of dinosaurs lived in South Dakota
from Lindz W, Sioux Falls, south Dakota, North America; February 4, 2001

A: Anatotitan, Camptosaurus, Denversaurus, Edmontosaurus, Hoplitosaurus, Iguanodon, Nanotyrannus, Pachycephalosaurus, Thescelosaurus, Thespesius, Torosaurus, Triceratops prorsus, and Tyrannosaurus have been found in South Dakota.

For a list of dinosaurs found state by state in the USA, click here.

Q: I have to do a report on Troodon and I need to know a couple things. One, did Troodon have protective coloring? Second, was Troodon warm or cold-blooded?
from Colleen C., ?, Maryland, United States if America; February 4, 2001

A: No one knows the answers to either of these questions.

Q: If you were a dinosaur, when would you have lived?
from Tommy G., Glenside, PA, USA; February 4, 2001

A: During the Mesozoic Era from about 230 to 65 million years ago.

Q: What kind of fossils are found in VA??
from Heather G., Newport News, VA, USA; February 4, 2001

A: None that I've heard of. For a list of dinosaurs found state by state in the USA, click here.

Q: Who was smarter, a triceratops or a tyrannosaurus? i found two different answers in two different books!
from Matt, ?, ?, ?; February 4, 2001

A: T. rex had a bigger brain than Triceratops relative to its body weight.

Q: Is the Dimetrodon a dinosaur?Why?
from Lyndon C., Saskatoon, Saskatchewan, Canada; February 4, 2001

A: No, Dimertrodon was a pelycosaur. The pelycosaurs lived during the Permian period, before the dinosaurs evolved. They also had a very different skull structure than the dinosaurs and sprawling legs (unlike the dinosaurs' columnar legs). The pelycosaurs are sometimes called mammal-like reptiles, since their lineage led to the evolution of the mammals. For more information on Dimetrodon, click here.

Q: What happened or went on during the archeozoic era?
from Jen Y, ?, ?, ?; February 4, 2001

A: The Archeozoic Eon (also called the Archean) lasted from 3.9 to 2.5 billion years ago. During this time, the first life forms evolved - these were one celled organisms. Blue-green algae, archaeans, and bacteria appeared in the sea. This began to put oxygen into the atmosphere. For a chart of geologic time, click here.

Q: what type of dinosaur bones have been discovered in texas?
from anet n., bastrop, tx, united states; February 4, 2001

A: Acrocanthosaurus, Alamosaurus, Brontopodus, Camptosaurus, Chasmosaurus, Coelophysis, Deinonychus, Dimetrodon*, Edmontosaurus, Hypsilophodon, Iguanodon, Kritosaurus, Megatherium* (giant ground sloth), Ornithomimus, Panoplosaurus, Pawpawsaurus, Pleurocoelus, Protohadros byrdi, Quetzalcoatlus*, Shuvosaurus, Stegoceras, Technosaurus, Tenontosaurus, Texascetes, Torosaurus, and Tyrannosaurus rex were found in Texas. For a list of dinosaurs found state by state in the USA, click here.

Q: How much does a t.rex weigh.
from Michelle W, albany, or., usa; February 4, 2001

A: T. rex weighed roughly 5 to 7 tons. For more information on T. rex, click here.

from DONOVAN, ?, SINGAPORE, ?; February 3, 2001

A: Therizinosaurus was a meat-eater.

Q: name two herbivorous
from ?, ?, ?, ?; February 1, 2001

A: Two dinosaurs that were herbivores (plant-eaters) were Brachiosaurus and Triceratops.

Q: Mom and I have been looking for the type of habitat a Saber Tooth cat lived in. Could you please help?
from Lilly L, Memphis, TN, USA; February 2, 2001

A: There were lots of different saber-tooth cats; they lived during the Pleistocene Epoch (the early part of the Quaternary Period). During this time, the Earth was much colder than it was now and sea-levels were lower (much of the sea water was frozen). Ice sheets and glaciers covered much of the land. Saber-tooth cats lived in grasslands, shrubby areas and pine forests that supported the plant-eating animals that the saber-tooth cats ate. For more information on saber-tooth cats, click here.

Q: i want to know all about Stegosaurus
from Cody Hughes, Enterprise, alabama, United States Of America; February 1, 2001

A: For information on Stegosaurus, click here.

Q: What was the climate, atmosphere like during the Trisassic Period? What era was the Triassic Period? Was dinosaurs abundant during this period?
from Mashonda D, Lithonia, Georiga, US; February 1, 2001

A: The Triassic period lasted from 248 - 206 million years ago. It was the earliest period in the Mesozoic Era. For a page of Triassic period dinosaurs, click here. During this time, the weather was warmer, the sea levels were higher (because there was no polar ice), the Earth's continents were jammed into one supercontinent called Pangaea, and much of the land of Earth was inland and desert-like.

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