Quatora

## Quatora occultatum

This species relies simply on its mossy-green colour to shield it from the predators that now patrol the waters. However, the predators do not really use vision to locate their prey so this is not a huge help. It's eyes do help to detect if another species comes to close, and also makes finding moss easier.

Features: This is another species that has developed a pinhole eye, and so it is poorly able to make out shapes. It also has chromatophore cells on the surface containing a green pigment.

Distribution: Deep Ocean

Time: Medusan to Cartiligian Stage of the Atroxian (R.5 - R.13)

Size: 2.1cm (length)

Lifestyle: Herbivore

Predecessor: Quatora rursus

Past Mutations:
Muscles (I), Digestive System (Gizzard & Bacteria), Pit Eyes, Chisel Teeth, Open Circulatory System, Fins, Axochord

Cause of Extinction: Outcompeted

Discovered by: Aviscerator

## Quatora similis

Quatora occultatum and Quatora similis share very similar lives, except Quatora similis has a slightly easier time recognising predators and so gets away quicker.

Features: This is yet another species that has evolved pinhole eyes via the narrowing of the eye opening. This allows the species to see shapes. It has also developed a simple memory, so can recognise species to avoid.

Distribution: Deep Ocean

Time: Medusan to Cartiligian Stage of the Atroxian (R.5 - R.13)

Size: 2.1cm (length)

Lifestyle: Herbivore

Predecessor: Quatora rursus

Past Mutations
Muscles (I), Digestive System (Gizzard & Bacteria), Pit Eyes, Chisel Teeth, Open Circulatory System, Fins, Axochord

Cause of Extinction: Outcompeted

Discovered by: Agenttine

## Quatora memorus

Timespan: Cartiligian to Tyrannidean Stages of the Atroxian (R.11 - R.24)

Habitat: Shallow Sea

Distribution: All Temperate Seas

Niche: Herbivore

Size: 2.1cm

Predecessor: Quatora occultatum

Classification: Quatoridae, Quatorea, Tubulosa

Info: The Quatora split into two similar, but genetically different lines. This species lived alongside the round, slower but more protected Chontraderma, its own cousins. It had a slightly larger brain than many other species, indicating it had more complicated behaviour.

Description: In the mouth of this mossy-green, tubular animal are four chisel-like teeth. A pair of pinhole eyes with transparent, protective layers, sat on its head. At the back of the head were four gills on each side. It also has the four fins that are characteristic of the order. In the gut, it had a gizzard as well as a stomach able to digest fleshy multicellular matter. An open circulatory system bathed the organs in hemacoel, whilst the body was coordinated by two nerve cords, rungs of nerves and a slightly denser ball of ganglia. It's back was supported by an axochord.

Cause of Extinction: Outpredated

Discoverer: Aviscerator

## Quatora rigidum

The movement of this four-finned green herbivore is quite sluggish due to the rigidity of its muscles, and needs more energy to make the same movement it's close relatives do. There is already lots of competition for moss-eaters, and so this animal is on the edge of extinction.

Features: The muscles in this animal are somewhat stiffer than others, and yet aren't actually any harder; they are just as easy to tear. This makes movement more of a struggle and wastes energy. Also, at the back of the head are now located four pairs of gill slits, which help more oxygen to be taken in as well as with salt regulation.

Classification: Myspterygi, Quatoridae

Distribution: Uteenessa Ocean

Habitat: Shallow Sea, Deep Ocean

Time: Terrafaunian Stage of the Atroxian (R.21 - R.22)

Size: 2.4cm (length)

Lifestyle: Herbivore

Predecessor: Quatora memorus

Past Mutations:
Muscles (I), Digestive System (Gizzard & Bacteria), Pit Eyes, Chisel Teeth, Open Circulatory System, Fins, Axochord, Pinhole Eyes, Green, Environment Awareness, Transparent Eye Cover

Cause of Extinction: Outcompeted

Discovered by: Aviscerator

## Quatora agentibus

Timespan: Tyrannidean to Gnathian Stages of the Atroxian (R.22 - R.43)

Habitat: Shallow Sea

Distribution: All Temperate Seas

Niche: Herbivore

Size: 2.7cm

Predecessor: Quatora rigidum

Classification: Quatoridae, Quatorea, Tubulosa

Info: One of the last of this ancestral, once very successful, group of herbivores, it ploughed the early temperate seas with its relatives until the arrival of Thanostoma. With no defence, they were all quickly wiped out by the voracious predators. In a crowded niche, it was slightly superior.

Description: In the mouth of this mossy-green, tubular animal are four chisel-like teeth. A pair of pinhole eyes with transparent, protective layers, sat on its head. At the back of the head were four gills on each side. It also has the four fins that are characteristic of the order. In the gut, it had a gizzard as well as a stomach able to digest fleshy multicellular matter. An open circulatory system bathed the organs in hemacoel, whilst the body was coordinated by two nerve cords, rungs of nerves and a slightly denser ball of ganglia. It's back was supported by a very rigid, yet fragile axochord but efficient muscles.

Cause of Extinction: Outpredated

Discoverer: Aviscerator