| 词汇 | cambrian |
| 释义 | Cambrian adjective uk /ˈkæm.bri.ən/ us /ˈkæm.bri.ən/ Cambrianadjective (TIME)geology specialized from or referring to the period of time between about 543 and 490 million years ago, in which many different types of invertebrates (= animals with no back bone) first appeared: 寒武纪的（寒武纪，距今约5.43亿至4.9亿年前的地质时期，无脊椎动物开始大量出现。） These rocks date from the middle of the Cambrian era. They are already present in early Cambrian rocks. Now nobody can deny that life back in the Cambrian era was already extremely varied. When we consider another event of the Cambrian period, an interesting parallel emerges. The evidence fitted, but there was something of a gap between the first eye and the Cambrian explosion event. Geology - general words Anthropocene anticline apophysis auriferous biozone carboniferous continental plate geologically geomorphic gully erosion henge Holocene Permian petrographic petrographically petrography petrological Precambrian rockfall syncline You can also find related words, phrases, and synonyms in the topics: Prehistory Specific periods of time Cambrianadjective (WELSH)used in place names to mean Welsh: The Cambrian Coast stretches from Cardigan in the south to Harlech and Porthmadog in the north. the Cambrian Mountains The Gallery is on Cambrian Place in Swansea. The Talyllyn Railway was built to connect the slate quarries above Abergynolwyn with the Cambrian Railway at Towyn. Places and locations anatopism coign of vantage core crime scene deliver something to someone/somewhere direction hill locus madding makerspace Mecca multi-location retroperitoneal retroperitoneally scene situation spot station stronghold subsite Cambrian noun[ S ] geology specializeduk /ˈkæm.bri.ən/ us /ˈkæm.bri.ən/ the Cambrian the Cambrian period (= the period between about 543 and 490 million years ago): Highly complex plants and animals evolved in the Cambrian. Conodonts are small fossils found in rocks ranging in age from the Cambrian to the Triassic. They explored quarries where 500-million-year-old fossils from the Cambrian had been found. The fossil jellyfish in the Burgess shale were thriving by the middle of the Cambrian. Just before the Cambrian, the deep oceans were made oxygen rich and sulfide poor by an unusual spate of undersea landslides. Geology - general words Anthropocene anticline apophysis auriferous biozone carboniferous continental plate geologically geomorphic gully erosion henge Holocene Permian petrographic petrographically petrography petrological Precambrian rockfall syncline You can also find related words, phrases, and synonyms in the topics: Prehistory Specific periods of time |
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