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410-million-year-old Fossil of Galeaspids Reveals How Fast Early Fish Could Swim

Apr 13, 2023

The 410-million-year-old fossil reveals galeaspids may be active swimmers, and the galeaspid's cruising speed is even faster than that of their more derived jawless and jawed relatives.

Life reconstructions of galeaspid species with "nine tails" discovered in south China's Guangxi Zhuang Autonomous Region. (Photo provided to China News Service)

Photo shows a complete headshield articulated with body and tail preserved together with a complete arthrodiran fish. (Photo provided to China News Service)

Photo shows an exceptionally preserved fossil of "nine tails". (Photo provided to China News Service)

Photo shows the exceptionally preserved fossils of fishes and plants associated with Foxaspis. (Photo provided to China News Service)

Life restoration and caudal fin evolution of the "nine tails." (Photo provided to China News Service)

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