在乍得Toros Menalla地区，古生物学家从发掘的化石中辨认出两种新的剑齿物种。
Palaeontologists have identified two new sabretooth species among fossils unearthed at Toros Menalla in Chad.
因而前寒武纪化石的缺失和寒武纪三叶虫等突发式出现，好象一把双刃剑，对达尔文演化学说的塔基构成了威胁。
Therefore the deficiency of pre-Cambrian fossil and the sudden emergence of Cambrian trilobite are like a double edged sword posing threat for the very foundation of Darwin evolutionism.
这块标本是一堆“混杂”化石的一部分- - -其中包括两条食肉恐龙，其中一条可能剑龙，和四条蜥脚类恐龙，这些化石是最近在犹他州的一次发掘中被发现的。
The specimen is one of a "logjam" of fossils-including two meat-eating dinosaurs, a probable Stegosaurus, and four sauropods-found recently at a dig in Utah.
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