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Zoom Dinosaurs
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By Date By Type of Dinosaur General Dino. Qns. Qns. About Other Animals Geological Era Qns.

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Please check the
Top Sixteen Dinosaur Questions below
and the
Dino and Paleontology Dictionary first!

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Questions Often Asked About Dinosaurs:
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?

We enjoy hearing from visitors. Thank you for writing! You can send your questions and we'll try to answer them as soon as possible, but we can't answer them all. (We get many more questions than we can possibly answer. We try to answer as many as we can. Please don't send your question many times - they will all be deleted if you do so.)

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

Questions from Late Nov. 2001:

Q: what exactly is a dinosaur
from brianne c, clevland, ?, ?; November 30, 2001

A: Dinosaurs were a type of land-dwelling reptiles that lived during the Mesozoic Era (from about 230 to 65 million years ago). Dinosaurs had a unique type of hip socket (different from those of other reptiles). Taxonomically, the clade of dinosaur is defined as the most recent common ancestor of Triceratops and modern-day birds, and all of the descendants (Holtz and Padian, 1995).

from Derek D., Bremen, In, U.s.a; November 30, 2001

A: Click here.

Q: When did wooly mamouths inhabit the earth?
from alberta, austin, Texas, USA; November 30, 2001

A: Woolly mammoths lived from about 2 million years ago to 9,000 years ago.

Q: How many dinosaurs originated from Canada?
from Sherry, York, PA, United States; November 30, 2001

A: A large number of dinosaurs have been found in Canada. For a page on Canadian dinosaur, click here.

Q: What is the scientific name(Genus+species) of a common Plesiosaur?
from Adrienne C., Atlanta, GA, USA; November 29, 2001


from Amy C, hilton, NY, us; November 29, 2001

A: Sauroposeidon was a saurischian (Order Saurischia) and a sauropod (Suborder Sauropoda).

Q: who or what was the oldest dinosures
from jaleesa, rr, nc, ?; November 29, 2001

A: The oldest known dinosaurs (so far) are 230-million-year old prosauropods (primitive, plant-eating dinosaurs that had a small head and a long neck) from Madagasdar.

Q: Is the Lochness Monster an extincted animal?
from D.P, San Jose, California, United States of America; November 29, 2001

A: No, it's an imaginary animal.

Q: Im doing a proyect and i was wondering wich dinosaurs exist in the triassic period?

A: For a page of Triassic period dinosaurs, click here.

Q: what are the first dinosurs found?
from CG, dallas, tx., texas; November 30, 2001

A: For a page on the earliest dinosaur finds, click here.

Q: What kind of food does the T-rex eat and how often
from ?, ?, ?, ?; November 29, 2001

A: T. rex ate large naimals, like Triceratops. No one knows how often it ate.

Q: who thought of the name dinosaur and when ?
from ben d, adelaide, sa, australia; November 29, 2001

A: It was Rochard Owen in 1842. For more information on Owen, click here.

Q: How do you pronounce Coelophysis, Brachiosaurus?
from Stanley W., Decatur, Georgia, America; November 29, 2001

A: Coelophysis is pronounced SEE-low-FIE-sis. Brachiosaurus is pronounced BRAK-e-o-SAWR-us.

Q: What is the biggest dinosaur?
from liz ,taylor,l.,j., Harrisburg, South Dakota, United States; November 29, 2001

A: So far, it is probably Argentinosaurus.

Q: How did the Stegosaurus get its name.
from ?, ?, ?, ?; November 29, 2001

A: Stegosaurus was named by Othniel C. Marsh. The name Stegosaurus means "Covered Lizard" or "Roof lizard," probably referring to the plates.

Q: Is an Archaeopteryx an Saurpod, Trachodon or what?
from Holly Saville, Wichita, Kansas, USA; November 29, 2001

A: None of the above - Archaeopteryx was a bird.

Q: What do fossils tell us about how the animal moved, what it ate and how it reproduced?
from kristina w., cave creek, arizona, us; November 29, 2001

A: If the animal has been extinct since prehistoric times, fossils tell us almost eveything we know about it.

Q: Can you please give me any information on Megladon? Picture, where period it livid. Weither it livid on land,sea or air. How big was it?
from Zig F, Mansfield, Nottinghamshire, England; November 29, 2001

A: For information on Megalodon, click here.

Q: what is the name of a hadrosaur with a broad toothles beak
from Brendan M, Syracuse, N.Y., USA; November 29, 2001

A: A lot did, including Edmontosaurus and Anatotitan

Q: i need alot of information on the segnosaurus PLEASE!!!!!!
from jh, cleburne, texas, usa; November 29, 2001

A: For a page on Segnosaurus, click here.

from CHERRIE, HAMLET, NC, USA; November 29, 2001

A: When an animal walks on four legs (like Stegosaurus), measuring its height is tricky. Measuring the height from the ground to the top of the head varies with the posture of the animal, so the height from the top of the shoulder to the ground is used. Stegosaurus was about 9 feet (2.75 m) tall at the hips. For more information on Stegosaurus, click here.

Q: What kinds of triceratops fossils have been found? What rock layers have they been found in?
from kristina w., cave creek, arizona, us; November 29, 2001

A: About 50 Triceratops skulls and some partial skeletons have been foundTriceratops is found in late Cretaceous period sediment. For more information on Triceratops, click here.

Q: What is it origen of dinosaurs?
from jenny c, covina, california, estados Unidos; November 29, 2001

A: Dinosaurs probably evolved from earlier reptiles called thecodonts.

Q: When did the triceratops brecome extinct?
from kristina w., cave creek, arizona, us; November 29, 2001

A: Triceratops went extinct about 65 million years ago. For more information on Triceratops, click here.

Q: what dose the word dinosaur mean
from ?, ?, ?, ?; November 29, 2001

A: Dinosaurs means fearfull-great lizard (or reptile).

from Holly S., Wichita, Kanas, USA; November 29, 2001

A: Archaeopteryx is the oldest known bird.

Q: My daughter and I were watching a special about dinosaurs. They said that the T Rex doesn't exist. That it's skeleton is made from the bones of separate dinosaurs. Is this true?
from Cyndy M., Yorktown, VA, US; November 29, 2001

A: Unfortunately, I didn't see that show, but they are incorrect. T. rex is a real species of dinosaur, and over a dozen T. rex fossils have been found, and the bones are consistent from find to find. One, a huge T. rex nicknamed Sue, is an almost complete fossil. There have been other fossils that were mistakenly thought to be one organism when in fact it was a jumble of more than one species (like the bogus genera Ultrasauros and Archaeoraptor).

Q: how large does a diploducus grow a year
from Mike H., DC, DC, USA; November 28, 2001

A: It isn't known exactly how fast dinosaurs grew, but some paleontologists think that dinosaurs grew very quickly. Jack Horner, Kevin Padian and Armand de Ricqles have studied the microscopic structure of dinosaur bones and found that they had extensive blood vessels running through them, indicating a rapid growth rate.

Q: Can you tell methe fact about dinosaur mothers, eggs and babies?
from Alex Chan, Richmond, B.C., Canada; November 28, 2001

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

Q: I need to do a geologic time scale starting at 4.6 billion years On dinosaurs can you help?
from janet V, philadelphia, PA, ?; November 28, 2001

A: For a geologic time scale, click here.

Q: How many dinosaurs have been discovered in Argentina? How tall are they? Which dinosaurs are they?
from Graham G., Hermon, Maine, U.S.A; November 28, 2001

A: For a list of dinosaurs found in Argentina, click here and look at the section on Argentina. For more information on a particular dinosaur, click on the name (if it is underlined).

Q: what did the archaeopteryx eat, and what habitat did he live in?
from michelle b, whitehall, michigan, us; November 28, 2001

A: Archaeopteryx was a carnivore (a meat-eater) that probably ate tiny reptiles, small mammals (of course, most mammals were small at the time), and insects. One area in which Archaeopteryx was found, the Solnhofen area of Germany, was a stagnant lagoon during the Jurassic period (Europe was a series of islands at this time). The lagoon's waters had little or no oxygen (anoxic) near the bottom, a situation that helped preserve many dead organisms, and boost the chances of fossil formation, since decay after death is very slow in anoxic waters.

For more information on Archaeopteryx, click here.

Q: when did dinosaurs first appear?
from thomas A, Adelaide, South Australia, Australia; November 28, 2001

A: The oldest-known dinosaurs date from about 230 million years ago.

Q: What reptiles were alive during the Cenozoic mammal period? were any of them big?
from scott H, Raymond, NH, USA; November 27, 2001

A: Many reptiles survived the K-T extinction and made it to the Cenozoic (65 million years ago until now), including many lizards, snakes, crocodilians, etc. - but none of them were the behemoths that existed in the Mesozoic. The largest animals did not survive the K-T extinction. I've seen very interesting analyses that show that generally, species over about 6 feet in length do not survive major extinction events. Since the last mass extinction, some reptiles have grown big (especially crocodilians and the Komodo Dragon). The Australian saltwater crocodile (Crocodylus porosus) is the biggest (most massive) reptile alive today, growing to about 20-23 ft (6-7 m) long.

Q: I want to know when you write t'rex is the r a capital r or small r.
from Felicia, Batonrouge, La, Ns; November 27, 2001

A: In Linnaeus' binomial system of classification in biology, an organism's genus name is always capitalized and the species name is in all lowercase letters. For Tyrannosaurus rex, that dinosaur's genus name is Tyrannosaurus (hence the capital T in T. rex) and its species name is rex (hence the lowercase letters). (Note - the genus is also supposed to be italicized or underlined, but unfortunately, italicization on the web in hard to read in many fonts, and underlining on the web usually means a link, so these conventions are not always used on the web.)

Q: Can dinasours bone fossil break in very little little pieces.
from Tevor s., Houston, Texas, United States; November 27, 2001

A: Yes, and that's the condition in which many fossils are found.

Q: What is a dimetrodon? what are it physical phytures and what were the plate techtonics when it was alive?
from stephanie N., atlanta, georgia, u.s.a.; November 27, 2001

A: Dimetrodon was a pelycosaur (a so-called mammal-like reptile, but it wasn't a reptile) that lived during the Permian period (before the dinosaurs evolved). For more information on Dimetrodon, click here. For information on plate tectonics, click here.

Stegosaurus toothQ: What is the shape of a stegosaurus teeth?
from Katie M, Toronto,Ontario, Toronto, Canada; November 26, 2001

A: Stegosaurus had leaf-shaped teeth. For more information on Stegosaurus, click here.

Q: what is the komodo dragons life spand
from devin b, lawrenceburg, kentucky, north america; November 26, 2001

A: The Komodo dragon has a life span of about 20 years.

Q: In which era did dinosiurs exist or begin ti exist? What about mammal?
from S.J, Brooklyn, New York, U.S.A; November 25, 2001

A: Dinosaurs and mammals both evolved during the Triassic period, roughly 230 million years ago.

Q: what was the weather like in the triassic period?
from ?, ?, ?, ?; November 25, 2001

A: During the Triassic period, it was warmer than it is now. The continents were jammed together into a supercontinent called Pangaea, which made most of the land on Earth interior deserts. Seasonality was low. There was no polar ice, so the sea level was higher than it is now. For more information on the Triassic period, click here.

Q: Were some dinosaurs nocturnal?
from LeAnn B., Kimberly, AL, USA; November 25, 2001

A: Probably, but no one knows for sure. The dinosaur Saurornithoides had very large eyes (the eye sockets were large), so it is thought that it may have been nocturnal (most active at night).

Q: What is the difference between an astoroid and a comet?
from Pam S, San Jose, CA, USA; November 24, 2001

A: Asteroids are rocky/metallic objects that orbits the Sun. Most asteroids orbith between Mars and Jupiter. For more information on asteroids, click here. Comets are made of ice and dust and orbit the Sun in very eccentric orbits. We can see a comet's long tail when they are near the Sun. For more information on comets, click here.

Q: Im doing an assignment on the Woolly Mammoth.can you please give me some information on it? some of the questions that need answering are:eating habits?,habitat?,when it lived?,physical features(teeth,body stucture,size etc.) thanks it`d be great from Erin......
from Erin.P, Wallabi Point, NSW, Australia; November 24, 2001

A: For a page on the Woolly mammoth, click here.

Q: What were the Woolly Mammoth`s eating habits?
from erin p, wallabi point, nsw, australia; November 24, 2001

A: Woolly mammoths were herbivores (plant-eaters) that may have used their long tusks to dig in the snow for grass and other food.

Q: what do u call a dinosaur who its meat
from adam g, T ville, qld, austraila; November 24, 2001

A: Any animal (including a dinosaur) whose diet is mostly meat is called a carnivore.


A: Yes and yes. There are wonderful museums in England, including the incredible British Museum of Natural History, Cromwell Road, London, SW7 5BD, UK. Many dinosaur fossils have been found in England, including the first few dinosaurs scientifically described (Megalosaurus, Iguanodon, and Hylaeosaurus). For a page on dinosaurs found in England (and other European countries), click here.

Q: Were did Cretaceous Period get its name from? Also what Ear and Period occurred after the Age of the Reptiles?
from Damien A., BolingBrook, Illinois, United States; November 23, 2001

A: Creta is the Latin word for chalk. The Cretaceous period was named for chalky rock from southeastern England that was the first Cretaceous period sediment studied. After the Mesozoic Era (the Age of Reptiles) came the Cenozoic Era (the Age of Mammals). The Cenozoic Era is divided into the Tertiary Period (65 to 1.8 million years ago) and the Quaternary Period (1.8 million years ago to today).

Q: How many Apatosuars's lived in the Late Jurassic Period?
from Jordan, okc, ok, ?; November 23, 2001

A: No one knows the population numbers for any dinosaurs (including Apatosaurus).

Q: I Just wanted to know about the competition with mamals thoery that caused extinction of dinasaurs
from mike s., vancouver, British Columbia, Canada; November 22, 2001

A: That theory argues that mammals liked to eat dinosaur eggs, and ate enough of them to adversely affect the survival of the dinosaurs.

Q: howmany dinosaurs are there ?
from ben d, none, sa, australia; November 22, 2001

A: No one knows how many different species of dinosaurs there were or what their population numbers were. There are about 1,000 known dinosaur genera and many more known species.

Q: were their people alive when the dinos were alive?
from alyssa t, suisun city, ca, usa; November 22, 2001

A: No, the dinosaurs lived from about 230 million to 65 million years ago; people did not evolve until millions of years later. For a chart of geologic time, click here.

Q: What do Smilodons eat and how do they eat it?
from China y, London, Middlesex, England; November 22, 2001

A: Smilodon (a saber-toothed cat) was a carnivore (meat-eater) that probably ate thick-skinned animals like mastodons (hairy, extinct elephants), horses, and bison. They used their long incisors to bite through the thick skin. For information on Smilodon, click here.

Q: What are the Komodo Dragon's enemies?
from Kristin H., NS, Canada; November 21, 2001

A: The Komodo dragon is at the top of its food web - no animals prey upon it.

Q: Who invented the word "DINOSAURS"?
from Elizabeth L., Harrisburg, South Dakota, USA; November 21, 2001

A: The word dinosaur was coined by Richard Owen in 1842.

Q: Is there a dinosaur named pegasaurus?
from Peggy F, Brighton, michigan, USA; November 21, 2001

A: No.

Q: i want to be a paleontologist when i grow up and i was wondering how meny years of school do you have to do and how old schold you be?
from Kaila, Okham, Mass, USA; November 21, 2001

A: It varies quite a bit - many paleontologists have a Ph.D. (4 years of college and 4+ years of graduate school), but others do not.

Q: What dinosaur museum is closest to Rhode Island?
from Karah A, Coventry, RI, USA; November 21, 2001

A: For a page of dinosaur-related museums, click here.

Q: the relation of dinosours to birds
from student d, la, ca, us; November 20, 2001

A: This section is a little like jeopary - please state your query in the form of a question! For a page on dinosaurs and birds, click here.

Q: what is extinction?
from asa, cleveland, ohio, ?; November 20, 2001

A: Click here.

Q: could you give me some info on the theory of the dinosuars dieing out by comet.
from timothy j b, carizozo, n.m., lincoln; November 20, 2001

A: Click here.

Q: where are the fossils found
from sofia m, wlmington, de, ?; November 20, 2001

A: Dinosaur fossils have been found all over the world - on all seven continents.

Q: What kind of plants did the Hadrosaurus eat?
from quyen, Houston, texas, united states; November 20, 2001

A: Hadrosaurus' diet is not known, but it was an herbivore (a plant eater) that probably ate low lying plants like ferns, cycads, horsetails, etc.

Q: who first theorized the the dinosaurs became extinct?
from richard p., streamwood, il, usa; November 20, 2001

A: There is no theory that the dinosaurs are extinct - it is a fact.

Q: What is the largest dinosaur? How big was it?
from SYED He, Elizabeth, New JERSEY, USA; November 20, 2001

A: Argentinosaurus.

Q: what did humans have to do with dinosaur extinction?
from oyuki f, ft.stockten, ?, ?; November 20, 2001

A: Humans had nothing to do with the extinction of the dinosaurs, since the dinosaurs went extinct millions of years before people evolved.

Q: help me define the word sauros?????????
from Jenna Symons, j gh,jcgd hnhxfm, mi, jnfnbvnm ghm gn; November 20, 2001

A: It means lizard.

Q: From where does our coal come from?
from ?, ?, ?, ?; November 19, 2001

A: Coal is a combustible mineral formed from organic matter (mostly plant material) that lived about 300 million years ago (during the Pennsylvanian Period ). During the Pennsylvanian Period, the earth was covered with huge swampy forests of giant ferns, horsetails, and club mosses. As layer upon layer of these plants died, they were compressed and covered with soil, stopping the decomposition process, forming peat. Heat and pressure chemically forced out oxygen and hydrogen, leaving carbon-rich deposits, called coal. A 20-foot-thick layer of plant material produces a one-foot-thick layer (seam) of coal.

Q: Hi again. I have decided not to do the "Protoceratops" and i was wondering if you had HEAPS of info on the really mad dinosaur called "Triceratops" It's really important that i pass this assignment Thank you so much. Love & Lolly Pops & Hugs & Kisses Love Always Kylie Lovin ya!
from Kylie.H, Brisbane, Queensland, Australia; November 19, 2001

A: For a page on Triceratops, click here.

Q: With the movie "Jarrasic Park" at the start it says that they used frog dna to reencarnate the dinosaurs. Is that possible and could i have some more information about that. Please help! This is for a project and it is due tomorrow. help me PPPPPPPLLLLLLLEEEEEEEAAAAAASSSSSSSSEEEEEEEEE
from Tahnee, Rockhampton, Queensland, Australia; November 19, 2001

A: No one knows how to clone dinosaurs, since no dinosaurs SNA is available. Using frog DNA would result in a baby frog.

Q: where does the stygimoloch dinosaur live?
from ?, ?, ?, ?; November 19, 2001

A: Fossils of Stygimoloch have been found in Montana and Wyoming, USA, North America.

Q: What did the velociraptor eat when it was alive???? And what was it preyed upon on???
from Kaitlin G., Seven Hills, Ohio, u.s; November 19, 2001

A: Velociraptor was a meat-eater that probably ate small dinosaurs and other animals.

Q: I heard somewhere that someone had seriously proposed that dinosaurs developed nuclear technology and it was a nuclear war that led to their demise. This would explain the K/T iridium spike. Do you know anything about this theory and who proposed it?
from Tony M, ?, ?, England; November 19, 2001

A: I would stop listening whatever source told you that silliness.

Q: Was there grass in dinosaur times?
from Rebecca W, Newcastle, Durham, England; November 18, 2001

A: No one knows exactly when grasses evolved, but grass is a flowering plant and flowering plants didn't evolve until the late Jurassic period.

Q: What adaptations did the cretacious period have that the jurasic period didnt?
from Tim, ?, ?, ?; November 18, 2001

A: Periods of time do not have adaptations. An adaptation is a response of an organism to changes in its environment (like the selective survival of plants with better water conservation during dry times). The Cretaceous period and the Jurassic period were periods of time (and not organisms).

Q: Im doing a debate on which come first the dinosaur or the egg can you please please please help me so what do you think? please answer from Erin.
from Erin, Rocky, QLD, AUST; November 17, 2001

A: Many other egg-laying animals lived before the dinosaurs, so the egg came first.

Q: I am in the 4th grade and I am doing a report on the Plesiosaurs and I don't know how they survived.
from Michele P, NY, NY, US; November 17, 2001

A: They didn't, they went extinct at the end of the Cretaceous period. (During their millions of years of existence, they survived like all organisms do - they lived long enough to reproduce another generation.) For a page on plesiosaurs, click here.

Q: I'm doing a project and I was wondering what other animals besides the dinosaurs lived during the mesozoic era?
from nicole b., miami beach, florida, united states; November 17, 2001

A: Click here for a page on the Mesozoic Era that includes other life forms that lived during that time.

Q: Who named the Utah raptor?
from Candice P., Sandwich, I.L, U.S.A; November 17, 2001

A: Utahraptor was named by paleontologists James Kirkland, Gaston, and Burge in 1993.

Q: Are there any dinosaur measuring activities out there using non-standard units of measure?
from Paula O, New Boston, IL, USA; November 16, 2001

A: Oddly enough, yes - click here.

Q: How fast does the T-rex run
from B.H, Orient, Iowa, U.S; November 16, 2001

A: For a page on T. rex's locomotion, click here.

Q: what did the sauropods eat?
from sz, hag, md, us; November 16, 2001

A: The sauropods were herbivores (plant-eaters).

Q: how long is the spinasuarus
from brittney t, claremore, ok, usa; November 16, 2001

A: Spinosaurus was about 40-50 feet long (12-15 m) long. Fore information on Spinosaurus, click here.

Q: How many bones do Tyranausaurus Rex?
from Nana P., Pembroke Pines, Florida, U.S.; November 16, 2001

A: No 100 percent complete T. rex skeletons have been found, but T. rex had about 200 or so bones.

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