Eodromaeus, at 230 million years old, is from the very earliest days of the dinosaur era, a period about which scientists still know very little.
伊奥卓玛龙生活生活在距今2.3亿年前，存在于在始盗龙之前，是恐龙世纪的最早期，而科学家对这段时期知之甚少。
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