Praefixipiso

**Praefixipiso** (meaning spiked back or back spikes in some language) is a genus under the tribe Arpaktikoaltini, and is also the first genus under the clade Pisospicis, They evolved around 355mya and can still be found today. They are named after the fact that they have spikes on their back. They can be found in both fresh and saltwater and can even survive on land for a short period of time, but that's nothing special because almost all Arpaktikoaltidae can do that. When the continents collided together only one species survived, but thanks to Rapid Evolution Amir 333,333 years later when humans arrived to the planet it already diversified into plenty of new species. The reason why it has the name spikes back even though it's not the only genus to have spikes on its back, it is because it is believed to be the first genus to have spikes on it's back. Size can vary from species to species, but most species are typically 1 ft long 1 ft tall and 1 ft wide, with the females being 1 ft 1 in Long 1 ft 1 in tall and 1 ft 1 inch wide. But life span can also vary from species to species but most of them typically live about 30 Earth years for females and 25 Earth years for males.

## Evolution

They evolved around 355,244,133 years ago, it is unknown which genus they evolved from due to lack of fossil evidence, but genetic evidence said that they may have evolved from the genus Arpaktikoaltis. How their spikes evolved was unknown for a while due to the lack of fossil evidence, but here is some speculation, just like ray-finned fish on earth who have evolved their dorsal spine from their dorsal fin into Venom injection spikes, it is possible that these spikes started out as a part of the dorsal fin directly down the middle of the back but is evolution progressed the spikes began to move further to the sides of the back and then special scales in the shapes of cones formed around them probably to make them look more intimidating, another theory is that the cone-shaped scales evolve and then for some reason it lost the dorsal fin. A.R.F. Scientists prefer to lean more towards the first Theory because some species that will evolve from this one would evolve venom injecting spikes and the only way for that to happen is for there to be some kind of tube-like structure inside the spike AKA a spine. Upon dissection of a specimen of the genus it was discovered that inside the spikes there were tube-like structures confirming the first Theory. The reason it evolved these was probably for intimidation and self-defense and perhaps sexual selection, because it appears to be that females prefer males with big spikes, but this isn't always the case, but a lot of times it is, it seems to differ from species to species. It would later go on to evolve into a few more Genera of Arpaktikoaltini, but would also give rise to a new tribe of the Arpaktikoaltidae family, the tribe Glykounerouini, this genus would also go on to give rise to many other families orders and classes some of which are monospecific, and some of which are not, and some of these are still alive today and some are not.

## Anatomy

their Anatomy is not much different then every other genus in this family. The only thing worth pointing out is the spikes on the back. The species that live in Clearwater have decent vision for this family, a little bit blurry and in black and white, while the ones that live in kind of murky water the same kind of water that Ilektrika pezoporos lives in have eyesight along the same lines as Ilektrika pezoporos.

## Habitat

They can be found in ponds and rivers and Lakes and other bodies of water all across the entire supercontinent of Omnisterra, as well as all over the ocean. Before the supercontinent formed they could be found all around North and South Primaterra in lakes, rivers, ponds, ect, but could also be found in the ocean.

## Diet

They are primarily carnivores eating whatever creature swims by them, using their whisacles to lure in prey, and then jumping at them when they fall for the bait. Some species are 100% carnivorous meaning they eat no plants, while other species are either 90% carnivorous or 95% carnivorous meaning they eat some amount of plants or other substance.

## Breeding

It starts during The Mating Season the female release pheromones to attract males and depending on the species the female will either pick a male based on how big is back spikes are, or the males will fight and whoever wins gets to mate, or the female will pick the one with the biggest spikes, and then if another male wants her he has to fight that one, and if he wins he gets her. After that the female will find a Nook or cranny or just dig a hole to lay the eggs in, watch over them until they hatch, and after that the young are on their own.

## Adaptations

the most notable adaptation of this genus is the spikes on its back, but other individual species have their own unique adaptations too, but those will not be gone into here. One adaptation that one species had though is important to mention, because it help it survive The End Of Times Mass Extinction Event, the species that evolved this was Praefixipiso reggi, and that special adaptation was the ability to go into stasis similar to that of a naked mole rat, lung fish, or water bear. With that ability it was able to survive and it was the only species of it's Genus to survive.

## Threats

Before the intelligent species of the planet evolved they had very few natural Predators thanks to those spikes, not many creatures could get through that Spike defence, especially when they were buried in sand. The only things they had to worry about were disease, viruses, natural disasters, and starvation. After the evolution of Sapient species on Hume III they have to worry about quite a few things such as pollution, being overfished, overfishing of their natural prey, habitat loss, and the pet trade. After Society on Hume III collapsed, this Genus had started to recover, but then the continents collided wiping out all but one species, that species is Praefixipiso praefixipiso, thankfully due to Rapid evolution it diverged into at least fifty different species within the first 100 years by the time humans arrived to the planet there was plenty of species in this genus all throughout the whole supercontinent. Now that humans have arrived and have brought back Society, the same threats from before had started again with at least three species in the genus going extinct, but luckily the Sapient species as well as the humans on the planet started to turn things around for them just like humans do on Earth, conservation efforts really helped and now most species in this genus are considered least concerned with only a handful of them being vulnerable.

## Taxonomy

Domain: Exogiinosefkaryotis

Kingdom: Animalisaliena

Subkingdom: Enmetazoae

Phylum: Xenochordata

Subphylum: Psariaskoulikion

Megaclass: Epithymia

Superclass: Skoulikionpsaria

Class: Ostikiepithymia

Subclass: Efchimelovo

Order: Psithyrismenoprosopoiformes

Suborder: Programmataanichnefsiskatoidei

Clade: **Idiotamcaptionemviventem**

Subclade: Ourapterygio

Section: Mobileidiotamcaptionem

Family: Arpaktikoaltidae

Tribe: Arpaktikoaltini

Clade: Pisospicis

Genus: **Praefixipiso**

\*\*Extant species under Praefixipiso\*\*

Species: Praefixipiso praefixipiso

Add your own species here.

\*\*Extinct species under Praefixipiso\*\*

Species: Praefixipiso prima

Species: Praefixipiso reggi

Add your own species here.