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1. The Graptoloidea is a rare and endangered species.
Graptoloidea是一种稀有且濒危的物种。
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2. The discovery of this Graptoloidea has sparked new research in the field.
这种Graptoloidea的发现激发了该领域的新研究。
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3. The Graptoloidea is found only in a few specific regions of the world.
这种Graptoloidea仅在世界上的少数特定地区被发现。