Aethurethox Ocean

The Aethurethox Ocean (Ay-th-ur-ay-th-ox or Ay-th-ur-ah-th-ox) was a prehistoric ocean that covered much of Ratera during its existence from the Early Ediacaran to the Early Savian existing ~635 to ~410 million years ago. The Ocean covered mainly the northern hemisphere through its history, however it was much larger during the Early Ediacaran.

It was succeeded by the Aethureth Ocean and the Iolux Ocean, which formed during the Savian Period. Today remnants of the Aethurethox Ocean are the Arctik Sea and Thuros Sea of the northern hemisphere, both of which are mostly covered in ice.

## Etymology

The name Aethurethox comes from the idea that it is an ancestor to various other modern and ancient bodies of water. Ae- comes from the Aegea, -thure- comes from the Thuros Ocean and modern Thuros Sea, -th- comes from the Aseth Ocean (which is thought to be the modern Arctik Sea, and -ox comes from the Iolux Ocean.

## Theory

The modern theory is that the Aethurethox Ocean was a large body of oceanic water that existed in the northern hemisphere throughout Ratera's history from the Ediacaran to the Early Savian. The ocean then split apart into the Iolux Ocean and the Aethurth Ocean, which further split into the Aegea, Thuros Ocean, and the Aseth Ocean. The Iolux Ocean is not seen as a part of any modern ocean (except possibly the Gamtis Ocean), whereas the Thuros Ocean became the Thuros Sea, and the Aseth Ocean became the Arctik Sea. The Aegea is problematic, possibly being part of the modern Turk Sea, or the Floan Sea, however it is unclear.

### Ediacaran

From around 635 to 538.8 mya, the Aethurethox Ocean covered all of the northern hemisphere of the Ediacaran. As the continents of the southern hemisphere shifted, so did the theoretical border of the Aethurethox. This is because the border between the Aethurethox and Uyul Ocean is drawn between the continents of Adaria, Udenia, Osithia and Stroloyia, so as the continents moved, so did the borders of the oceans.

### Rimunian & Poonlaloocian

During the Rimunian and Poonlaloocian, the Aethurethox Ocean is defined as any and all oceanic waters north of the supercontinent Taslandiland, and north of the Taslandiland Basin, which is a hypothetical oceanic basin that includes all the continents except Taslandiland and Cansaotomia at the time. As such, the borders shifted as Taslandiland, Asleon, and Ogoria shifted.

### Pabuonian

Similar to the Rimunian and Poonlaloocian, the Aethurethox Ocean during the Pabuonian is characterized as oceanic waters north of Taslandia. The borders of the Aethurethox are defined by the northern coasts of the smaller continents of Asleon, Ogoria and Edoxia, as well as the northern coasts of Taslandia on both the eastern and western sides of the supercontinent.

### Savian

The Aethurethox Ocean began to shrink during the Early Savian as the supercontinent of Taslandia and the continent of Lomgia collided. This shift of continents caused a large bay being formed, being called the Iolux Ocean, which was separate from the Aethureth Ocean. Both oceans formed during the Middle Savian and were remnants of the Aethurethox Ocean. The Aethurethox Ocean disappeared around 410 - 407 million years ago, leaving only its successors.

## See also

* Aethureth Ocean - successor to the Aethurethox Ocean
* Iolux Ocean - successor to the Aethurethox Ocean
* Taslandia - supercontinent during and after the time of the Aethurethox Ocean
* Osithia - supercontinent during the time of the Aethurethox Ocean