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加拿大农民、古生物学爱好者约翰，日前发现暴龙头骨化石。据悉，这是加拿大50年来首次发现新的暴龙物种，也是北美已知发现的最古老暴龙物种之一。

约翰是在加拿大阿尔伯塔省徒步旅行时，偶然发现一块暴龙头骨化石，其独特性、尤其是连接上颌的垂直脊帮助研究人员确定它是一个新物种。

它被研究人员命名为塔纳托龙，塔纳托龙体长可达8-10米，重两吨以上，研究人员认为，在约8000万年前，塔纳托龙一直是如今北美地区强大的捕食者，也是北美发现的最古老暴龙类物种之一，比其近亲霸王龙早出现约250万年。

多年来，大量的恐龙化石在加拿大被发现，特别是阿尔伯塔省。据悉，化石将于今年稍后在阿尔伯塔皇家泰瑞尔博物馆展出。

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