裂齿，食肉齿适合于撕裂肉的牙齿，尤指食肉哺乳动物最后上前臼齿之一或第一个下臼齿。
A tooth adapted for tearing apart flesh especially one of the last upper premolar or first lower molar teeth in carnivorous mammals.
布朗回忆道：“看得很清楚，虽然那颗前臼齿大体而言像人牙，可绝不是现代人的牙齿。”
"It was clear that while the premolar was broadly humanlike, it wasn't from a modern human," Brown recollects.
但龙骨坡还发现了一件神秘的下颌残片，包括第四前臼齿和第一臼齿。
But Longgupo also yielded a mystery jaw fragment, including the fourth pre molar and the first molar.
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