Advertisement.

EnchantedLearning.com is a user-supported site.
As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.
Click here to learn more.

ad
(Already a member? Click here.)


ZoomDinosaurs.com
ALL ABOUT DINOSAURS!
What is a Dinosaur? Dino Info Pages Dinosaur Coloring Print-outs Name That Dino Biggest, Smallest, Oldest,... Evolution of Dinosaurs Dinos and Birds Dino Myths


HYLAEOSAURUS
"Woodland Lizard"

ANATOMY
Hylaeosaurus (meaning "woodland lizard") was an armored, quadrupedal, plant-eating dinosaur from the early Cretaceous period, about 135-119 million years ago. It looked a lot like its more advanced relative Ankylosaurus, but didn't have the bony nodes at the end of its tail or horns on its head. Hylaeosaurus may be the same as Polacanthus.

It had a toothless horny beak and leaf-shaped cheek. Hylaeosaurus was about 13 feet (4 m) long, had short legs, a narrow head with a pointed snout, a long, heavy tail, spikes along its shoulders and sides, and horn-covered oval plates embedded in its skin all over the top of its body. Its entire top side was heavily protected from predators. Only its under-belly was unplated. Flipping it over was the only way to wound it.

WHEN HYLAEOSAURUS LIVED
Hylaeosaurus lived during the early Cretaceous Period, about 135-119 million years ago.

DIET
This huge, heavy reptile was an herbivore (it ate only plants). It had to eat a huge amount of low-lying plant material to sustain itself so its gut must have been very large. It may have had a fermentation compartment to aid in the digestion of the tough plant material, producing prodigious amounts of gas.

INTELLIGENCE
Hylaeosaurus was an ankylosaur, whose intelligence (as measured by its relative brain to body weight, or EQ) was low among the dinosaurs.

EQ


LOCOMOTION
Ankylosaur trackways were found in 1996 near Sucre, Bolivia, South America showing that these huge creatures could run at a "decent jog," according to Christian Meyer, a Swiss paleontologist working at the site. Speed estimates are made using the distance between the footprints, the animal's leg length, the pattern of the tracks, and other factors.

DISCOVERY OF FOSSILS
Hylaeosaurus fossils have been found in southeast England. Hylaeosaurus was the third dinosaur to be given a name (although the group "dinosaur" had not been named yet); Hylaeosaurus was named in 1833 by the British paleontologist Gideon A. Mantell.

CLASSIFICATION
Hylaeosaurus belonged to the Order Ornithischia, the Suborder Thyreophora (Enoplosauria), the Ankylosauria (armored, four-legged dinosaurs), and was in the family Nodosauridae (a group of primitive ankylosaurs with no tail clubs; it included Edmontonia, Sauropelta, Acanthopholis, Silvisaurus, Nodosaurus, Panoplosaurus, etc.).






Information Sheets About Dinosaurs
(and Other Prehistoric Creatures)

Just click on an animal's name to go to that information sheet. If the dinosaur you're interested in isn't here, check the Dinosaur Dictionary or the list of Dinosaur Genera. Names with an asterisk (*) were not dinosaurs.
How to write a great dinosaur report.

For dinosaur printouts, click here.

For brief dinosaur fact sheets, click here.




Enchanted Learning®
Over 35,000 Web Pages
Sample Pages for Prospective Subscribers, or click below

Overview of Site
What's New
Enchanted Learning Home
Monthly Activity Calendar
Books to Print
Site Index

K-3
Crafts
K-3 Themes
Little Explorers
Picture dictionary
PreK/K Activities
Rebus Rhymes
Stories
Writing
Cloze Activities
Essay Topics
Newspaper
Writing Activities
Parts of Speech

Fiction
The Test of Time

Biology
Animal Printouts
Biology Label Printouts
Biomes
Birds
Butterflies
Dinosaurs
Food Chain
Human Anatomy
Mammals
Plants
Rainforests
Sharks
Whales
Physical Sciences: K-12
Astronomy
The Earth
Geology
Hurricanes
Landforms
Oceans
Tsunami
Volcano
Languages
Dutch
French
German
Italian
Japanese (Romaji)
Portuguese
Spanish
Swedish
Geography/History
Explorers
Flags
Geography
Inventors
US History

Other Topics
Art and Artists
Calendars
College Finder
Crafts
Graphic Organizers
Label Me! Printouts
Math
Music
Word Wheels

Click to read our Privacy Policy

E-mail


Enchanted Learning Search

Search the Enchanted Learning website for:



Advertisement.

Advertisement.




Copyright ©1996-2018 EnchantedLearning.com ------ How to cite a web page