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.)


You might also like:
Dinosaur Footprint PrintoutDinosaur Defenses PrintoutDinosaur Sizes PrintoutDinosaur Size Math ActivityDinosaur Eggs, Nest, and ReproductionToday's featured page: Hurricanes



More about Dinosaur Eggs
Dinosaur Printouts
AllAboutDinosaurs.com
Dinosaur Eggs
Animal Printouts
Label Me! Printouts


dinosaur egg printout

Dinosaurs hatched from eggs. The eggs were round or elongated and had hard, brittle shells. Internally, these eggs were similar to those of reptiles, birds and primitive mammals; they contained a membrane, the amnion, that kept the embryo moist. Some dinosaurs cared for their eggs, others simply laid them and then abandoned them.

The first fossilized dinosaur eggs ever found (and the biggest yet to be found) were football-shaped Hypselosaurus eggs found in France in 1869. These eggs were 1 foot (30 cm) long, 10 inches (25 cm) wide, had a volume of about half a gallon (2 liters), and may have weighed up to 15.5 pounds (7 kg). The smallest dinosaur eggs are about 1 inch across; they are from Mussaurus.

Many fossilized dinosaur eggs have been found, at over 200 sites in the USA, France, Spain, Mongolia, China, Argentina, and India. Very rarely, the eggs have preserved parts of embryos in them, which can help to match an egg with a species of dinosaur. Without an embryo, it it difficult to match an egg to a dinosaur species. The embryo in an egg sheds light on dinosaur development.



Enchanted Learning Search

Search the Enchanted Learning website for:



Advertisement.



Advertisement.



Advertisement.



Copyright ©2000 EnchantedLearning.com ------ How to cite a web page