ediacara biota造句

例句与造句

1. The Avalon explosion is also called the Ediacara biota radiated event.
2. The new forms of life, called Ediacara biota, were larger and more diverse than ever.
3. They largely disappear from the Ediacaran fossil record before, roughly coeval with the origin of the Ediacara biota.
4. The growth and development of the Ediacara biota is also a subject of continued research, and this has discredited the sea pen hypothesis.
5. "' Reginald Claude Sprigg "', Ediacara biota, an assemblage of some of the most ancient animal fossils known.
6. It's difficult to find ediacara biota in a sentence. 用ediacara biota造句挺难的
7. The Ediacara biota ( also called Vendian biota ) dating from 575 million years ago collectively constitutes a richly diverse assembly of early multicellular eukaryotes.
8. The concept of " Ediacara Biota " is, of course, somewhat artificial as it can not be defined geographically, stratigraphically, taphonomically nor biologically.
9. Consensus holds that fossils of the Ediacara biota disappear here, as do some shelly fossils and acritarchs; and a new small shelly fossil biota emerges.
10. The recognition of small shelly fossils before the first trilobites, and Ediacara biota substantially earlier, led to calls for a more precisely defined base to the Cambrian period.
11. The Ediacara biota, which flourished for the last 40 million years before the start of the Cambrian, were the first animals more than a very few centimetres long.
12. The bed lies just below some of the oldest fossils of the Ediacara Biota, leading to early suggestions that the passing of the glaciation may have paved the way for the evolution of these odd organisms.
13. Moreover, its preservation is not of typical Burgess Shale type, but rather represents silicification associated with a'death mask'microbial mat, recalling the'Ediacara-type'preservation of the Precambrian Ediacara biota.
14. His paleontological research involves fossil reefs, the Ediacara biota in Russia, Australia, Newfoundland, and California, extinction dynamics in open-ocean ecosystems, and the paleontology of the Gal醦agos Islands and sites in California.
15. The organism bears a very superficial resemblance to echinoderms, ctenophores and to some of the other Ediacara biota, but it lacks sufficient physical characteristics to ascertain with any degree of certainty whether it is indeed an animal or not.
16. Rocks dating from contain fossils of the Ediacara biota, organisms so large that they are likely multicelled, but very unlike any modern organism . but as recently as the 1970s, no sign was seen of how the'relatively'modern-looking organisms of the Middle and Late Cambrian arose.
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