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Zoom Dinosaurs
DINOSAUR QUESTIONS
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.

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Questions from late April 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. J. 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: What kind of dinosaurs lived in the Jurassic period?
from ?, ?, ?, ?; April 30, 2001

A: For early Jurassic dinosaurs, click here. For middle Jurassic dinosaurs, click here. For late Jurassic dinosaurs, click here.



Q: why marine animal fossils found where there is no water
from chad t, strathroy, ontario, canada; April 30, 2001

A: If you find fossils of marine organisms in an area, you known that there was once water in that location.



Q: can you find some facts on the duck bill dinosour?
from Anna, Calgary AB, Alberta, ?; April 30, 2001

A: For information on the duck-billed dinosaurs (also called Hadrosaurs), click here.



Q: One of my students asked how dinosaurs slept (laying or standing). I wasn't sure. My guess is that they laid down. Am I correct? Any help you could give us would be great. Thanks
from Deborah C. Havens, Reading, PA, United States; April 30, 2001

A: No one knows their sleeping positions (but it probably varied from genus to genus). The smaller ones (like Compsognathus) probably lay down.



Q: how big is a Diplodocus
from ?, ?, ?, ?; April 30, 2001

A: Diplodocus was about 90 feet (27 m) long with a 26 foot (8 m) long neck and a 45 foot (14 m) long tail.



Q: Does the T-REX have feathers?
from ?, ?, ?, ?; April 30, 2001

A: No. Fossilized T. rex skin has been found and it shows no evidence of feathers. Some paleontologists recently began to think that perhaps young T. rex may have had feathered skin. For information on T. rex, click here.



Q: is it true that T. rex almost always predated on triceratops? and why?
from Julio A., La Serena, IV region, Chile; April 29, 2001

A: Thanks to some fossilized T. rex feces, it is known that T. rex probably included Triceratops in its diet, but whether or not it was T. rex's mainstay is unknown.



Q: WHAT DID THE HIPPO USE FOR DEFENSE?PLEASE ANSWER THIS
from DONOVAN R., ?, SINGAPORE, ?; April 29, 2001

A: Like most other hige animals, its size is its main defense (not only are they hard to kill, they are even hard to take a single bite from.



Q: WHAT DID THE CREATOUS PERIOD LOOK LIKE?
from ASHLEY Z, SA, TX, US; April 28, 2001

A: During the Cretaceous period, it waarmer than it is now and drier. The sea level was higher, since there was little or no polar ice during the Cretaceous. Volacanism was high during the Cretaceous. For more information on the Cretaceous period click here.



Q: do T.Rex's do internal fertelization?
from ?, ?, ?, ?; April 29, 2001

A: Most likely.



Q: some of the earliest mammals
from john s, mesa, az, us; April 29, 2001

A: Click here for a page on early mammals.



Q: What is the reproduction of the stegpsaurus?
from ?, ?, ?, ?; April 28, 2001

A: All that is known is that Stegosaurus laid eggs.



Q: DO ALL DINASORS EAT MEaT ALL THE TIME. DO'S THE WOLEYMAMITH STILL LIVE THEY SAID THEY WOULD TRY TO MAKE A CLONE...
from chelsie r, NORTH OLMSTED, OHIO, U.S; April 28, 2001

A: Most dinosaurs were plant eaters; fewer were meat-eaters.

Scientists are planning on cloning woolly mammoths from well-preserved mammothes that were recently found in Siberia.



Q: could you please tell me about some types of plants,rocks,land formation, and extras that existed in the silurian period?
from jenny s., chicago, il, united states; April 28, 2001

A: For a page on the Silurian period, click here.



Q: Could you tell me a bit more about Iguanodons on the isle of wight?
from Abbie I., Derdyshire, ?, England; April 28, 2001

A: The Isle of Wight (an island off the southern coast of England) has an incredible number of fossils, including many dinosaurs. Many Iguanodon fossils and trackways (about 50 footprints) have been found in the Wealden shale beds on the Isle of Wight. Iguanodon atherfieldensis (6 m long) was found by Reginald Hooley (an amateur fossil hunter) early in the 1900's.



Q: tell us about the jurrassic era thanks
from umer, karachi, sindh, pakistan; April 28, 2001

A: For a section on the Jurassic period, click here.



Q: What plants does triceratops eat?
from ok, portland, or, unitedstates; April 28, 2001

A: It isn't known with any certainty, but it probably ate low-lying plants like cycads and ferns. For more information on Triceratops, click here.



Q: I am doing a progect for school and i need to know what scientist can us to find out about things in the past. Do you have any information on what they learn from Dinosaur eggs? THANKYOU SOOOO MUCH!!!!!!
from Hether W., ???, ???, ????????; April 28, 2001

A: Fossilized eggs gan yield information on time, reproduction, anatomy, development, and some behaviors. Radio-isotope dating can tell you how old the egg is. Its size can give you a rough estimate of the size of the adult. The existence of the egg lets you know that this species reproduced by laying eggs Most fossilized eggs do not contain a fossilzed fetus, but those rare ones that do can yield a lot on information about the anatomy and development of the animal. If there is a fossilized nest and fossilized adults of the same species in the area, you can surmise that there was probably parental care of the eggs. Large numbers of eggs in one area can indicate herding behavior of the species.



Q: Where did the brachiosaurus live?
from summer, Brodvew, ohio, usa; April 27, 2001

A: Brachiosaurus fossils have been found in western North America and Tanzania, Africa.



Q: Can you give me information on the species Hybodus, like where it lived, when it lived, what its related to, and a descriptive sentence?
from brittany b, san mateo, california, united states; April 27, 2001

A: Hybodos was a genus of extinct sharks from the Carboniferous period, that lived from the Triassic period until it went extinct during the huge K-T mass extinction 65 million years ago, when the dinosaurs died. This hybodont had fin spines, an anal fin, a blunt snout, and a long body. It had sharp teeth at the front of the jaws (for catching fish) and blunt teeth towards the back (for crushing shellfish). Hybodos was about 7.5 feet (2.5 m) long. Hybodos tooth fossils are found worldwide.



Q: what is a four winged insect that lives(ed) now and in the age of dinosaurs????????????????????
from carey c, chapelhill, north carolina, united states; April 26, 2001

A: One is the dragonfly.



Q: Das small dinosaurs live longer than big dinosaurs.
from angie, pretoria, gauten, ?; April 26, 2001

A: No, the bigger ones probably had longer life spans. For a page on dinosaur life spans, click here.



Q: What are the distinctive structures and their probable functions, in the head of plesiosaurs?
from celine F., Brisbane, Qld, Australia; April 26, 2001

A: Plesiosaurs were an order of carnivorous marine reptiles (not dinosaurs) that had sharp teeth. The sharp teeth were used for getting food and for protection. Some had a small head (the long-necked Plesiosauroids) and others had a large head (the short-necked Pliosauroids).



Q: How did early mammals avoid dinosaurs?
from Noel A., Fairfield, ?, ?; April 26, 2001

A: There are lots of likely methods. Some ways include camouflaged coat coloration (effectively hiding the animal), retreating to burrows, and moving quickly. If most dinosaurs lived during the day (were diurnal) then a mammal could be most active at night (be nocturnal). You can probably think of other ways that a tiny animal can hide from a larger animal.



Q: For approximately how long have dinosaurs been extinct?
from Charles B., Dover, Delaware, U.S.A.; April 26, 2001

A: Dinosaurs went extinct about 65 million years ago.



Q: where did t rex lived in the world??????
from sg, Thomaston, Ga., USA; April 26, 2001

A: T. rex lived in what is now North America and Asia (Mongolia).



Q: what is a nickname for triceratop dinosaurs?
from ?, ?, ?, ?; April 26, 2001

A: Three horn.



Q: was the t-rex endo or ecto durmic?
from dominica s., mt. pleasant, sc, usa; April 26, 2001

A: No one knows. For a page on this debate, click here.



Q: What is A Anchiasaurus?
from Daniel P., Burlington, Mass., U.S.A; April 26, 2001

A: Anchisaurus was a primitive plant-eating dinosaur anout 6.5 to 8 ft long. For more information on Anchisaurus.shtml, click here.



Q: what is one theory about the extinction of the dinasours?
from ashley b, kelowna, b.c., canada; April 26, 2001

A: That an asteroid hit the Earth, triggering drastic climate changes. For more information on the K-T extinction, click here.



Q: Who discovered the Plesiosaurs.
from J.W, Atlantaa, Georgia, The United States of America; April 26, 2001

A: Plesiosaurus was first found by Mary Anning in 1821 and was named by H.T. De La Beche and William D. Conybeare later that year



Q: why don't you have information on the ichthyosaurus
from quaran g, phila, pa, united states; April 26, 2001

A: We do, click here for the dictionary entry or click here for a printable page on Ichthyosaurus.



Q: What size is the sauropods.
from Jesse F., Freeburg, Missouri, ?; April 26, 2001

A: The sauropods ranged in size from the early Anchisaurids that were 7-10 feet (2-3 m) long to the later giants (like diplodocids, titanosaurids, and brachiosaurids) that were over 100 feet long.



Q: What is the size of a Scutellosaurus?
from ?, ?, ?, ?; April 26, 2001

A: Scutellosaurus was about 4 feet (1.2 m) long and weighed about 22 pounds (10 kg).



Q: what are the meat eating dinosaurs
from Ann F, Greensboro, nx, us; April 26, 2001

A: The meat-eating dinosaurs are called theropods. Some theropods included T. rex, Allosaurus, Giganotosaurus, Gallimimus, Velociraptor, Utahraptor, Deinonychus, and Eoraptor.



Q: Were there more herbivores or carnivores?
from Rachel W., Gwinn, Michigan, U.S.A.; April 25, 2001

A: There were many more herbivores (plant-eaters). For a page on dinosaur diets, click here.



Q: Do you have any information on the sail back dinasaur?
from susan b, waterlooville, hampshire, england; April 25, 2001

A: There were many dinoasaurs that may have had a "sail" on their back, including Spinosaurus, Ouranosaurus, Acrocanthosaurus, and others. Dimetrodon was a sail-backed pelycosaur (not a dinosaur) that lived before the dinosaurs evolved.



Q: WHAT ARE BIOMES
from ?, ?, ?, ?; April 25, 2001

A: A complex community of plants and animals in a region and a climate is called a biome. Some examples of biomes are tropical rain forest, termperate deciduous forest, tundra, etc. For information on some major biomes, click here.



Q: what era or period did the Corythosaurus live?
from E.G., ?, ?, ?; April 25, 2001

A: Corythosaurus lived during the Cretaceous period, roughly 80 to 65 million years (this was towards the end of the Mesozoic Era). ago



Q: how do people know what color dinosaurs really was.
from randy m, new boston, ohio, north american; April 25, 2001

A: They don't - see the faq's above.



Q: WHERE CAN I GET PICTURES OF KOMOTO DRAGONS
from JSASNJCASN.S, DAVENPORT, IOWA, USA; April 25, 2001

A: Click here for a page on Komodo dragons.



Q: Do the tallest dinosaurs always wiegh the most? Why or why not?
from Dave D, Poway, California, United States; April 24, 2001

A: No, the tallest animals are not necessarily the heaviest. For a modern-day example, compare the giraffe and the elephant. The giraffe is much taller, but the elephant weighs much more. Looking at dinosaurs, the giraffe-like Brachiosaurus, Sauroposeidon and Ultrasauros, were the tallest dinosaurs, but other sauropods (like Argentinosaurus) weighed more.



Q: Did trisarotops ever fight T-rex.
from Sean L., St. Bony, MN, USA; April 24, 2001

A: T. rex preyed upon Triceratops, and Triceratops probably fought back energetically (to put it mildly).



Q: What does the word "Diplodocus" mean?
from ?, ?, ?, ?; April 24, 2001

A: Diplodocus mean "double beamed." For information on Diplodocus, click here.



Q: How big was the compsognathus? How tall and how much did it weigh?
from Lauren K., Burlington, WI, U.S.; April 24, 2001

A: For information on Compsognathus, click here.



Q: what dinasaurs were considered marine animals?
from shirley, portland, or, usa; April 24, 2001

A: None, see the faq's above.



Q: I need to know whether T-rex's are endothermic or ectothermic, what type of mobility they had, and what type of reproduction they have. Thanks a lot! PLEASE ANSWER BY WEDNESDAY...
from Molly K., Charleston, SC, USA; April 24, 2001

A: No one knows if it was endothermic or ectothermic. They laid eggs. For information on T. rex's locomotion, click here.



Q: when did the dinoaurs become extint
from mike g, barnegat, nj, united states; April 25, 2001

A: About 65 million years ago.



Q: Were there dinosuars in Louisiana??
from ?, ?, ?, ?; April 25, 2001

A: No, Louisiana was underwater during the Mesozoic (it was hotter then and there was no polar ice, so the sea level was higher).



Q: WHAT IS MEANT BY THE TERM triassic period? THAT IS WHAT MY ASSIGNMENT IS BASED ON SO I WOULD APPRECIATE IT IF YOU COULD ANSWER IT QUICKLY THANKS FOR YOUR TIME FROM me
from Megan B, SYDNEY, NSW, AUSTRALIA; April 24, 2001

A: The Triassic was a period in geologic time. The Triassic period lasted from 248 - 206 million years ago. For more information on the Triassic period, click here.



Q: What are some different types of underwater dinosaurs?
from ?, ?, ?, ?; April 24, 2001

A: THere were no underwater dinosaurs. See the faq's above.



Q: Which present day animal is suggested to be the evolutionary desecndant of the Tyrannosaurus Rex?
from Ryan M., Pleasant Valley, New York, United States of America; April 24, 2001

A: None - T. rex was an evolutionary dead end. Some other theropod dinosaurs (probably the maniraptors) evolved into the birds.



Q: where is the geological location of the t-rex?
from ?, ?, ?, ?; April 23, 2001

A: T. rex fossils have been found in North America and Mongolia.



Q: what is special about fabrosaurus
from michael r. j., montreal, QC, Canada; April 23, 2001

A: For information on Fabrosaurus, click here.



Q: did dinosours have ossicles(three small bones in the ear)?where did those bones originate from?
from f haaam, Dar-es-salaam, ?, Tanzania; April 23, 2001

A: No, they didn't have three middle ear ossicles (the malleus, incus and stapes).



Q: triceratops: what was the height,weight,where did it lived,how long it lived
from miguel, dakota, los angeles, united states; April 23, 2001

A: Click here.



Q: WHAT ARE SOME MEAT EATERS FROM THE LATE TRIASSIC
from Michelle Z., ?, ?, ?; April 23, 2001

A: Some early meat-eaters include Arctosaurus, Ceratosaurus, Coelophysis, Dilophosaurus, Dolichosuchus, Eoraptor, Frenguellisaurus, Halticosaurus, Herrerasaurus, Ischisaurus, Likhoelesaurus, Liliensternus, Procompsognathus, Rioarribasaurus, Saltopus, Staurikosaurus, Velocipes and Zatomus. For other Triassic dinosaurs, click here.



Q: Is there anything special about Campoturus?
from Kim, Alberta, quebec, canada; April 23, 2001

A: For a page on Camptosaurus, click here.



Q: Do you have a comparison or list of dinosaur sizes? My daughter needs to list dinosaurs of similar size to the one her report is about and it is tedious to go through the dictionary looking for other dinos' sizes.
from May N., Chestnut Ridge, NY, USA; April 22, 2001

A: THe closest I know of is a page on dinosaur families that lists their size range in the far right column) - click here.



Q: Where did the T-rex live?
from Erick_V., ?, ?, ?; April 22, 2001

A: T. rex fossils have been found in North America and in Mongolia.



Q: About how much did the T-rex weigh? Where did the T-rex live?
from Erick_V., ?, ?, ?; April 22, 2001

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



Q: WERE DINOSAURS REPTILES, MAMMLES OR ANPHIBENS?
from Ashli C., mercedes,TX., TEXAS, UNITED STATES; April 21, 2001

A: Dinosaurs were reptiles.



Q: I need ideas for a science project on dinosaurs for my son who is in second grade and has to do a project on dinosaurs.
from Sue H, Union City, Nj, USA; April 21, 2001

A: A nice project is to research one period during which the dinosaurs lived and make a diorama picturing it. He could look up which dinosaurs, other animals, and plants lived during that time. He could then draw them (or model them in clay) and put them in a box (which is painted to look like an a prehistoric scene), and label everything.

For Jurassic period information, click here (for a list of Jurassic dinosaurs, click here, for Jurassic plants, click here). For Cretaceous period information, click here (for a list of Cretaceous dinosaurs, click here, for Cretaceous plants, click here). For a simple dinosaur diorama with instructions with printouts, click here.



Q: Give me a list of what all of the dinosaurs names mean ex:(T.Rex = terrible lizard)
from Meg S., Benson, N.C., USA; April 20, 2001

A: For a page with the meaning of many dinosaur names, click here. For a page with the Greek and Latin roots used in many of their names, click here.



Q: Who discovered tricaratops and when were they found, and where were they found?
from Caitlin M., Colorado Springs, Colorado, US; April 19, 2001

A: The first Triceratops skull was found in 1888 by John Bell Hatcher, in Niobrara County, Wyoming, USA. For more information on Triceratops, click here.



Q: I would like to know more about the dinosaur named Sue. Do you have any info?
from Cathy B, Medina, OH, USA; April 19, 2001

A: Click here.



Q: I need info on pteradactyls.
from janet s, fairfax, va, usa; April 19, 2001

A: For a page on Pterodactyls, click here.



Q: What dose a Charadon Megaladon look like??
from Craig Shaffer, baltomore, MD, usa; April 18, 2001

A: Megalodon looked like a larger, streamlined version of a great white shark.



Q: ABOUT HOW MUCH DID YANDUSAURUS WEIGH?
from ?, ?, ?, ?; April 18, 2001

A: I've seen as estimate of 43 kg.



Q: What are the six types of fossils?
from Sandrilene F., San Fransico, California, United States of America; April 18, 2001

A: Six ways that organisms turn into fossils include:

Four types of fossils are: mold fossils (a fossilized impression made in the substrate - a negative image of the organism), cast fossils (formed when a mold is filled in), trace fossils=ichnofossils (fossilized nests, gastroliths, burrows, footprints, etc.), and true form fossils (fossils of the actual animal or animal part).



Q: Has any DNA of Dinosaurs been found
from Logan G, ?, ?, ?; April 17, 2001

A: Not enough to clone a dinosaur, but some Triceratops gene fragments may have been extracted.



Q: I was told oil from under grond came from Dinosaur bones is this true?
from Billonasourus, Ft Lorisus, Floridasian, Browrdius; April 17, 2001

A: Fossil fuels, like oil, are made from long-dead plants and animals (mostly plants).



Q: How do you name dinosaurs????
from Derek w., san antonio, texas, u.s.a; April 17, 2001

A: For a page on how dinosaurs are named, click here.



Q: I need information on a dinasour by the name of "Compsognathus".
from Kacy V., Vintondale, Pennsylvania, United States; April 17, 2001

A: Click here.



Q: My sister has a report due at the end of the mounth and she need to know: What a Maiasaura dinosaur means? (And it has to come from the encyclopedia)When you get the chance of getting this please give me an answer I really need one!! Thank You, Brittani
from Brittani C., Clermont, Fl, usa; April 17, 2001

A: The name Maiasaura means "good mother lizard." For more information on this dinosaur, click here.



Q: where can I find information for a report on the cretatious period?
from Jon L., Cincinnati, Ohio, U.S.A.; April 17, 2001

A: Click here.



Q: WHAT ARE SOME STRANGE FACTS AND HABITS ABOUT FUTABASAURUS?
from Scioscia H., Fort Lauderdale, Florida, United States of America; April 16, 2001

A: Futabasaurus was a tyrannosaurid dinosaur (related to T. rex) thatwas found in Japan. For more information, click here.



Q: How long did dinosaurs live on Earth ?
from E.J., Wndham, NH, USA; April 16, 2001

A: Dinosaurs lived from about 230 million years ago until 65 million years ago.



Q: How long were the Velociraptor's claws?
from Jane W, Spruce Grove, Alberta, Canada; April 16, 2001

A: Velociraptor's middle toe claws were 3.5 inch (9 cm) long.



Q: Who discovered Pteranodon?
from joshb, ?, ?, ?; April 16, 2001

A: Pteranodon was named by paleontologist Othneil C. Marsh in 1871 (I don't know who actually found the fossil).



Q: what is a brontosaurus
from brontosaurus, oxford, kansas, summer; April 16, 2001

A: Brontosaurus (a huge, plant-eating dinosaur) is now called Apatosaurus.



Q: I NEED INFORMATION ON A COMPSOGNATHUS. CAN YOU TELL ME WHERE I NEED TO GO? THANKS!
from DALE KELLEY, ELIZABETH, INDIANA, U.S.A; April 16, 2001

A: Click here.



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