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This list contains many extinct arthropod genera from the Cambrian Period of the Paleozoic Era. Some trilobites, bradoriids and phosphatocopines may not be included due to the lack of literature on these clades and inaccessibility of many papers describing their genera. This list also provides references for any Wikipedia users who intend to ...
Prehistoric arthropods of the Cambrian period, during the Paleozoic Era. Subcategories. This category has the following 7 subcategories, out of 7 total. ...
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 ...
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]
The Olenellus-zone has traditionally marked the top of the Lower Cambrian, [2] and is followed by the Eokochaspis zone. [ 3 ] The last two zones of the Middle Cambrian are the Bathyuriscus – Elrathina -zone (contemporaneous with the Burgess Shale ) and the subsequent Bolaspidella -zone (starting at the base of the Drumian stage [ 4 ] ).
Laminacaris size diagram. The large frontal appendage is the most prominent and distinctive feature in Cambrian arthropods. [3] [4] The largest frontal appendage of Laminacaris (YKLP 13338) is around 28 cm (11 in) long, which would have belonged to an individual between 53.2–78.4 cm (20.9–30.9 in) long, based on proportion of Innovatiocaris (which is once treated as "Anomalocaris" saron). [5]
Cambrian trilobites of North America (60 P) Pages in category "Cambrian arthropods of North America" The following 16 pages are in this category, out of 16 total.
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]