Pollauranchia

## Pollauranchia grohkiusi

Timespan: Cartiligian to Tyrannidean Stages of the Atroxian (R.18 - R.27)

Habitat: Deep Ocean, Continental Slope (Mid Ocean)

Distribution: Under Temperate and Tropical Ocean

Niche: Benthic Filter-Feeder

Size: 2.5cm

Predecessor: Grohkius speedius

Classification: Kardiaskulidae, Kardiaskulidea, Tubulosa

Info: Until it became outmoded by new species evolving, this was a very successful and widely spread species, living oblivious loves at the bottom of the ocean. It had a very good system of respiration that allowed it to live in very oxygen poor environments, where no other species could live. It also had greater stamina as a result.

Description: It had a tubular, pigmentless cylindrical body. On each side of the body was four gills, as well as a gill frill. The cartilaginous notochord gives it a bit more rigidity. It has a pair of pinhole eyes facing up, and one facing forwards. A simple gut, behind the pharynx, led through the body, which was circulated by a semi-open circulatory system; capillaries covered the muscles, which also had special vacuoles, but the rest of the organs were bathed in a chamber. The circulatory system was pumped by a tubular heart. A tiny brain and two nerve cords controlled the body.

Cause of Extinction: Outcompeted

Discoverer: Robotranicrex

## Pollauranchia oculimagnus

Timespan: Tyrannidean Stage of the Atroxian (R.22 - R.30)

Habitat: Deep Ocean, Continental Slope (Mid Ocean)

Distribution: Under Temperate and Tropical Ocean

Niche: Benthic Filter-Feeder

Size: 3cm

Predecessor: Pollauranchia grohkiusi

Classification: Kardiaskulidae, Kardiaskulidea, Tubulosa

Info: This is a truly bizarre looking proto-worm. With its large external gills and a pair of large eyes at the end of its transparent tubular body, it fits the eerieness of the deep. It was well-adapted to scouring the abyssal plains for food, and could dart quickly away the moment a predator is detected. It became extinct when the deep ocean became anoxic about 7.5million years into the Atroxian. It once went by the name Nassiaskulus, but was changed when it was decided it was similar enough to be the same genus.
Description: It had a tubular, pigmentless cylindrical body. On each side of the body was four gills, as well as a gill frill. The cartilaginous notochord gives it a bit more rigidity. The pair of pinhole eyes on top of its head have become enlargened, and can detect the scarce, faint light that just barely penetrates this deep. A much smaller pinhole eye faces forwards. A simple gut, behind the pharynx, led through the body, which was circulated by a semi-open circulatory system; capillaries covered the muscles, which also had special vacuoles, but the rest of the organs were bathed in a chamber. The circulatory system was pumped by a tubular heart. A tiny brain and two nerve cords controlled the body.

Cause of Extinction: Tyrannidean Anoxic Event

Discoverer: Robotranicrex

## Pollauranchia sagitta

Timespan: Tyrannidean Stage of the Atroxian (R.27 - R.30)

Habitat: Deep Ocean, Continental Slope (Mid Ocean)

Distribution: Under Temperate and Tropical Ocean

Niche: Benthic Filter-Feeder

Size: 2.5cm

Predecessor: Pollauranchia grohkiusi

Classification: Kardiaskulidae, Kardiaskulidea, Tubulosa

Info: This animal was adapted to surviving in the deep ocean by burying through the sediment, despite it's poor oxygen content. The front of the animal had mutated to taper to a point, which means it could use it's head to dig through the sediment. It had many tools to help it make the most of the oxygen available, such as the numerous gills along it's head and the external gill frills that could be flattened against the body when tunnelling. By living this lifestyle, Pollauranchia sagitta had an effective way of avoiding predators and also to find food. However, less than a million years after its appearance, it was wiped out by the Tyrannidean Anoxic Event.

Description: It had a tubular, pigmentless cylindrical body with a tapered head. On each side of the body was four gills, as well as a gill frill that can be flattened against the body. The cartilaginous notochord gives it a bit more rigidity. It has a pair of pinhole eyes facing up, and one facing forwards. A simple gut, behind the pharynx, led through the body, which was circulated by a semi-open circulatory system; capillaries covered the muscles, which also had special vacuoles, but the rest of the organs were bathed in a chamber. The circulatory system was pumped by a tubular heart. A tiny brain and two nerve cords controlled the body.

Cause of Extinction: Tyrannidean Anoxic Event

Discoverer: StealthStyle