Petrosapiens

The Petrosapiens are a species of silicon-based lifeforms from the planet Petropia.

Appearance
Petrosapiens are made of a green diamond-like material. They are a little taller than humans. They have four digits on their hands and none on their feet.

Male Petrosapiens have a spike on the back of their semi-cubic head and two to six on their back; females don't.

History
The Petrosapien race originally dwelled beneath Petropia's surface. After several centuries of warfare, a giant hole was accidentally ripped in the surface of Petropia, revealing a universe far beyond Petropia's heretofore self-contained existence.

Synopsis
With the inadvertent discovery of space, Petrosapiens began to stabilize their civilization and they began to explore the surface of Petropia and the rest of the universe.

Powers and Abilities
Petrosapiens are virtually invulnerable to most physical attacks.

Petrosapiens can regenerate to an extent.

Petrosapiens are able to alter their bodies into crude tools, such as blades.

Petrosapiens have other diamond-based powers: shooting diamond shards, being able to cut through most materials, and causing large, almost mountainous formations of diamond.

Being living prisms, Petrosapiens can refract light and beam-based weaponry, channeling them through their bodies and projecting them back at their source.

Weaknesses
Petrosapiens are vulnerable to sonic vibrations. While a stereo blast might cause them to splinter, certain ultra-high-pitched sound waves can cause them to completely shatter and might even fall unconscious.

The two shards on their back can leave Petrosapiens stuck to a wall or on other surfaces that they get knocked into.

Notable Petrosapiens

 * Diamondhead (the Omnitrix's DNA sample of a Petrosapien)
 * Diamondhead (RAT Timeline)
 * Tetrax Shard
 * Tetrax Shard (Dimension 23)
 * Citizens of Petropia

Notable Petrosapien Hybrids

 * Diamond Matter (½ Galvan)
 * Crystal Claws (½ Bear)
 * Kevin 11 (1/11 Petrosapien)
 * Ultimate Kevin (part Petrosapien)

Etymology
The name Petrosapien comes from petra meaning rock and sapien meaning intelligent being.

Trivia

 * Petrosapien diamond bears a resemblance to Taydenite.
 * The crystal female trainee from the Invader ZIM episode "Hobo 13" resembles a Petrosapien.