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Fossil plates are known from several regions. Complete specimens were found in Lower Cambrian strata of the White Mountains of California. The animal was a cigar-shaped creature up to 7 centimetres (2.8 in) long that stood upright on one end. Unlike more typical echinoderms such as sea stars, Helicoplacus does not have fivefold symmetry ...
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 ...
Dinocaridida [derivation 1] is a proposed fossil taxon of basal arthropods, [3] which flourished during the Cambrian period and survived up to Early Devonian.Characterized by a pair of frontal appendages and series of body flaps, the name of Dinocaridids (Greek for deinos "terrible" and Latin for caris "crab") refers to the suggested role of some of these members as the largest marine ...
The first episode deals with early life in the water; after a depiction of the giant impact hypothesis and the formation of the Moon, the episode forwards to the Cambrian period. The Cambrian segment showcases strange early arthropods, such as the super-predator Anomalocaris, and Haikouichthys, described as the first vertebrate.
The strangest-looking animals from Sirius Passet are Pambdelurion and Kerygmachela. They are generally regarded as anomalocarids because they have long, soft, segmented bodies with a pair of broad fin-like flaps on most segments and a pair of segmented appendages at the rear. The outer parts of the top surfaces of the flaps have grooved areas ...
Some of the animals of the Cambrian period ... Cambrian animal stubs (157 P) Pages in category "Cambrian animals" The following 39 pages are in this category, out of ...
About a half billion years ago, an ancient sea covered what is now the northernmost stretches of Canada. Its seafloor was long thought to be a dead zone, devoid of the oxygen needed to support ...
Prehistoric arthropods of the Cambrian period, during the Paleozoic Era. Subcategories. This category has the following 7 subcategories, out of 7 total. ...