enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Terreneuvian - Wikipedia

   en.wikipedia.org/wiki/Terreneuvian

   The Fortunian stage and presently unnamed Cambrian Stage 2 are the stages within this series. The Terreneuvian corresponds to the pre-trilobitic Cambrian. [5] The name Terreneuvian is derived from Terre Neuve, the French name for the island of Newfoundland, Canada, where many rocks of this age are found, including the type section. [2] [4]

3. Miaolingian - Wikipedia

   en.wikipedia.org/wiki/Miaolingian

   The Miaolingian is the third Series of the Cambrian Period, and was formally named in 2018. [4] It lasted from about 506.5 to 497 million years ago and is divided in ascending order into 3 stages: the Wuliuan, Drumian, and Guzhangian. The Miaolingian is preceded by the unnamed Cambrian Series 2 and succeeded by the Furongian series. [5]

4. Fortunian - Wikipedia

   en.wikipedia.org/wiki/Fortunian

   The top of the Fortunian which is the base of the Stage 2 of the Cambrian has not been formally defined yet, but will correspond to the appearance of an Archeocyatha species or "Small shelly fossils" approximately 529 million years ago. [5] The name Fortunian is derived from the town of Fortune on the Burin Peninsula, near the GSSP and Fortune ...

5. Ediacaran - Wikipedia

   en.wikipedia.org/wiki/Ediacaran

   The Ediacaran (/ ˌ iː d i ˈ æ k ər ə n, ˌ ɛ d i-/ EE-dee-AK-ər-ən, ED-ee-) [3] is a geological period of the Neoproterozoic Era that spans 96 million years from the end of the Cryogenian Period at 635 Mya to the beginning of the Cambrian Period at 538.8 Mya. [4]

6. Geology of Australia - Wikipedia

   en.wikipedia.org/wiki/Geology_of_Australia

   The Lachlan Fold Belt ophiolite sequences are considered to be of Cambrian age, and are obducted during the Lachlan Orogen. The Petermann Orogeny in Central Australia, which started at the end of the Neoproterozoic, continued into the Cambrian, shedding a thick intracontinental sequence of fluvial sediments into the central Australian landmass.

7. Stratigraphy of the Cambrian - Wikipedia

   en.wikipedia.org/wiki/Stratigraphy_of_the_Cambrian

   The first occurrence of Treptichnus pedum marks the Cambrian-Ediacaran boundary in Newfoundland, although there are several occurrences some metres below.. The opening of the Cambrian period is marked by a number of biological changes, including the extinction of the Ediacara biota, the preponderance of armoured organisms (e.g. the small shelly fossils), and a "widening of the behavioural ...

8. Furongian - Wikipedia

   en.wikipedia.org/wiki/Furongian

   The Furongian was also known as the Cambrian Series 4, and the name replaced the older term Upper Cambrian and equivalent to the local term Hunanian. The present name was ratified by the International Commission on Stratigraphy in 2003. Fúróng (芙蓉) means 'lotus' in Mandarin and refers to Hunan which is known as the "lotus state". [3]

9. Fossils of the Burgess Shale - Wikipedia

   en.wikipedia.org/wiki/Fossils_of_the_Burgess_Shale

   The Burgess Shale is a series of sediment deposits spread over a vertical distance of hundreds of metres, extending laterally for at least 50 kilometres (30 mi). [18] The deposits were originally laid down on the floor of a shallow sea; during the Late Cretaceous Laramide orogeny, mountain-building processes squeezed the sediments upwards to their current position at around 2,500 metres (8,000 ...