<h1>Dickenson jellyfish</h1>
Fossil Age: Idikala
Fossil distribution: Australia, Russia, Ukraine, China
The Dickinson jellyfish is an Idikala creature, and most of the fossils found first are trace fossils. It approximates a ribbed oval symmetrical on both sides. Its taxonomic status is controversial; most describe it as an animal, although others consider it a fungus or belong to an "extinct boundary".
The Dickenson jellyfish is an ancient life form that lived in the Idikala period, which dates from 550 million to 560 million years ago. Its form can be approximately seen as a symmetrical, ribbed oval on both sides. Fossils of this creature were first discovered in southern Australia by australian geologist Spreeg, and later in the Province of Podoria in Ukraine, the White Sea region of Russia and the Ural Mountains, and in Shou County, Anhui, China. At present, its taxonomic status is not clear, most of them classify it as coelenterates, there are also classified as link animals, and there is also a view that it is independently classified into a new discipline - Proarticulata.
The organism ranges in length from 4 mm to 1.4 m, is largely ovate in outline, and consists of many rib-like nodes and a central groove or ridge. These rib-like nodes interlace each other to form a glider-like symmetrical pattern.
These body segments of Dickinson jellyfish are described as "tires." These chamber-like joints are filled with liquids that are higher than the ambient pressure, like inflatable cushions. A small number of specimens show traces of longitudinal muscle fibers and viscera in the middle of the body, but this view has not yet been fully accepted.
The internal structure of the Dickinson jellyfish is thought to consist of spindle-shaped fibers with a diameter of 0.5–1 mm.
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