
生痕化石;[地质] 踪迹化石
The ichnofacies is the grouping of characteristic trace fossil association tending to rscirrence through a rather long interval of geologic time, and their environmental implication.
遗迹相是指一组具有特征的遗迹化石组合,在一段相当长的地质时期中不断的重视以及它们的环境意义。
The fossil dinosaur eggs included 19 species assinged to 10 genera belonged 7 families. They are assosiated with Hadrosaurs, Tyrannosaurs, Sauropods, Charophytes, Sporopollen and trace fossils et al.
据初步统计,已有7科、10属、19种之多,且与霸王龙、鸭咀龙、蜥脚类及轮藻、孢粉、痕迹化石等共生。
Dr. Tattersall believes the leap to humans may have been brought about very suddenly, perhaps by a few critical genetic changes, which is why the transition is so hard to trace in the fossil record.
塔特萨尔博士认为,转变到人类的飞跃产生已经很突然,或许由于几个重要的基因变化。 这就是为什么这个转变在化石记录里很难找到。
Birds evolved from dinosaurs, but the origin of their feathers may trace back even deeper in time, to the common ancestor of dinosaurs and pterosaurs, like the fossil at left.
鸟类是从恐龙进化而来的,但羽毛的起源则要追溯到更为久远的上古时代,恐龙和翼手龙的共同祖先才是羽毛出现的源点,例如上图左边的这块化石。
The myth is based on fossil evidence, but these days genetics can trace the path of evolution, too.
传说来源于化石,但是最近有研究表明通过遗传学的深入研究同样能够让我们追溯到物种进化的整个过程.
痕迹化石(Trace Fossil) 指保存在沉积岩层中、由远古生物活动留下的间接证据,而非生物体本身形成的化石。它记录了生物的行为(如移动、觅食、居住等),是古生态学和沉积环境研究的重要依据。其核心特征包括:
权威参考资料:
"trace fossil"(遗迹化石)是地质学和古生物学中的专业术语,指生物在沉积物中留下的活动痕迹或遗物,而非生物体本身的化石。以下是详细解释:
如需更深入的分类或案例细节,可参考地质学专业文献或权威词典来源。
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