trilobite造句
1. This is one of the most primitive trilobites known.
2. The eyes of trilobites include some very sophisticated structures that show they were far from primitive visually.
3. Trilobites were the first creatures on earth to develop high-definition eyes.
4. The trilobites produced the mosaic eye which has been retained by the insects.
5. Trinucleid trilobites, with various types of fringe, are characteristic of Ordovician rocks.
6. As the trilobites spread through the seas of the world, they diversified into a great number of species.
7. Some trilobites lost their eyes, probably those that burrowed in mud or lived in lightless parts of the ocean.
8. Trinucleid trilobites are blind, and with a greatly inflated mid-part of the head region.
9. Many of the trilobite fossils found commonly elsewhere in the world are these empty suits of armour.
10. The differences among the trilobites of different ages can be used by paleontologists to date these rocks.
11. The trilobites evolved rapidly, and can therefore be used extensively in the dating of rocks at this time.
12. But the Trilobite is not a toy.
13. Added the trilobite, "Yup, this evolution thing is going great."
14. Trilobite is nowadays world's largest manufacturer of mixer feeder wagons with vertical auger.
15. Even the simple trilobite has an eye (complete with its double lens system) that's considered an optical miracle by today's standards.
16. It looks like a cyborg trilobite; just the thing you want to caress while scrolling through the next chapter of "Victorians on Venus".
17. In addition, the trilobite said, the shifting of tectonic plates, and with them, the birth of new mountain ranges, river valleys, and coastlines, seemed to be coming along great.
18. Two others of these trilobite fossils have been found in the same area.
19. The Trilobite can clean a room on its own, using sound waves to feel its way around.
20. Here, no vertebrates at all could be found, the fossils consisting only of invertebrates such as the trilobites.
21. The external shell gives the crustaceans the problem it gave the trilobites.
22. Undoubted crustaceans are found in rocks as old as Cambrian, at which time free-swimming species were living happily alongside the trilobites.
23. There are a number of Paradoxides species, which include some of the largest trilobites.
24. 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.
25. MEI Shi - long , 1991 . Middle and Late Cambrian conodont and trilobite biostratigraphy in Wanxian, Hebei . Unpublished Ph. D thesis of Peking University.
26. Bio-and chrono-stratigraphic correlations between the Jiangnan Slope Belt and North China Platform are discussed on the basis of new achievements on trilobite stratigraphy from both regions.