Travel back to the time when the mighty dinosaurs ruled the earth.

The Age of Dinosaurs began about 250 million years ago. In the beginning they were quite small but over time they evolved into the varied and fascinating creatures that captivate our imaginations today. What we know about dinosaurs is evolving, too! We've learned that some dinosaurs were good parents, that dinosaurs could grow new teeth when old ones fell out, and that most dinosaurs walked on two legs. We've even discovered that birds are modern relatives of dinosaurs!

日本漫画史上最了不起的无字动物漫画。这部以生活在哺乳动物世界中的小恐龙为主人公的漫画，以其精湛的钢笔素描功底，吸引了大批读者，称之为无字动物漫画的王者亦受之无愧。
阿贡是食肉恐龙的幼子，有坚韧的腭部、四肢和尾巴，全身充满强劲的肌肉与结实的骨骼。它神出鬼没，有时在森林里，有时在绝岭中，有时又会出现在大草原上，按照自己喜欢的方式进食、游戏、睡觉、生存。
除各话的小标题外完全没有文字出现，甚至连拟音拟态词都没有，所有信息都通过画面来传达。《小恐龙——阿贡》的诞生，再次印证了漫画可以作为一种独立于语言之外的文化存在。