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1.The Coelacanthiformes are a group of marine reptiles that have been extinct for millions of years.
海龙形目是一类已经灭绝了数百万年的海洋爬行动物。
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2. The discovery of the first fossilized Coelacanthiformes in the ocean has sparked renewed interest in ancient marine life.
在海洋中发现的第一具化石化的海龙形目动物引发了人们对古代海洋生命的新兴趣。
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3. The Coelacanthiformes were once abundant in the ocean, but their populations have declined significantly dueto overfishing and habitat destruction.
海龙形目曾经在海洋中数量众多，但由于过度捕捞和栖息地破坏，它们的种群显著减少。