This is best seen in the trace fossil Skolithos.
这在痕迹化石 Skolithos 中最为明显。
单词 | Skolithos |
释义 |
Skolithos
原声例句
PBS地球-动物趣闻 This is best seen in the trace fossil Skolithos. 这在痕迹化石 Skolithos 中最为明显。 PBS地球-动物趣闻 Like all trace fossils, there were probably several types of organisms responsible for making Skolithos. 像所有遗迹化石一样,可能有几种类型的生物负责制造 Skolithos。 PBS地球-动物趣闻 Unlike the shallow horizontal burrows of Treptichnus, Skolithos burrows are vertical and up to a meter deep. 与 Treptichnus 的浅水平洞穴不同,Skolithos 的洞穴是垂直的, 深达一米。 PBS地球-动物趣闻 So while Treptichnus heralded the end of the Ediacaran Wormworld, Skolithos created a substrate perfect for the new Wormworld, the one we still live in today. 因此,虽然 Treptichnus 预示着埃迪卡拉纪蠕虫世界的终结,但 Skolithos 为我们今天仍然生活的新蠕虫世界创造了一个完美的基质。
英语百科
Skolithos![]() Skolithos (formerly spelt Scolithus or Skolithus) is a common trace fossil ichnogenus whose original form consisted of approximately vertical cylinders. One well-known occurrence of Cambrian trace fossils is the famous 'Pipe Rock' of northwest Scotland. The 'pipes' that give the rock its name are closely packed straight tubes, which in this case were presumably made by a worm-like organism. The name given to this type of tube or burrow is Skolithos, which may be 35 cm (14") in length and between 2 to 5 cm (0.8 to 1.6") in diameter. Such traces are known worldwide from sands and sandstones deposited in shallow water environments, from the Cambrian Period (541 to 485.4 million years ago) onwards. Skolithos burrows have rarely been described from carbonates. Some burrows have a helical form. Skolithos is typically marine, but is also known from freshwater lacustrine settings. It is usually associated with high-energy environments close to the shoreline. Trypanites is a similar form but is excavated in hard substrates as a trace fossil. Also related are Ophiomorpha and Diplocraterion. |
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