The smallest types were about the same size as a
chicken, and the largest were over 100 feet (30 meters) long.
Different dinosaurs ate different
diets.
Some types of dinosaurs ate only meat ("carnivores"), some ate only
plants ("herbivores"), and some ate both plants and meats
("omnivores").
Just like modern animals, the different types of dinosaurs were
related. Biologists use the terms "order",
"family", "genus" and "species" to
classify dinosaurs
and to indicate
how closely different types of animals are related.
A dinosaur which is the same species as another dinosaur is of the exact same
type, whereas two dinosaurs which are of the same genus are closely related
but of different types, and two dinosaurs of the same family are a bit
more distantly related and so on.
The chart below shows some of the different types of dinosaurs (divided into
herbivores, carnivores and omnivores). In most cases, the chart shows a genus or
family of dinosaur, although in some cases a single species may be indicated.
Please click on any listing for more detail of that particular type of dinosaur:
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