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Petrosapiens are a species of silicon-based lifeforms[1][2] from the planet Petropia.


Petrosapiens are made of a super-hard, green/blue diamond-like material.[MW 1] 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.

There are many different races of Petrosapiens - each with different gem-like colors and shapes.[pop-up 1][3]


The Petrosapien race originally dwelled beneath Petropia's crystal surface in underground cities.[pop-up 2][4] 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.

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.

At some point, due to the infighting between the various races on Petropia, it was easy for Vilgax to manipulate them, which led to its destruction.[pop-up 3][4]

Powers and Abilities

Petrosapiens' bodies are composed of extremely thick organic green crystals. They have the ability to manipulate the atomic structure of their physiology at will, allowing them to form their limbs into diamond weapons such as blades and bludgeons. Moreover, they can control all the crystals they generate, to the point that they can make them explode or lift them off the ground.[5] They can fire crystal shards sequentially out of their hands and can explode their body parts into crystalline formations,[3] as well as make crystal constructs grow from their body.

Petrosapiens can make monstrous and large clusters of crystals, conjuring walls and forming crystal shields and ramps. They can also generate crystals from the ground at a distance, can reshape their projectiles into limited shapes, and can also form gaping hands to capture enemies. Petrosapiens are capable of encasing enemies in crystals,[6] and can create crystals inside of objects and cause them to spike out.

A Petrosapien's crystalline body resembles a living prism, allowing them to deflect and absorb most energy beams and render weapons similar to lasers useless by simply refracting.[pop-up 4][3][7] Similarly, rays generated by dimensional transporter devices will reflect off of their body.[8][9]

Petrosapiens have inhuman physical abilities and are quite strong.

Due to the natural density of crystal, Petrosapiens are extremely durable to physical impacts. For example, Diamondhead has withstood being punched from Galvan Prime all the way to Galvan B by Malgax. This incident also shows that Petrosapiens can survive in the vacuum of space.[10]

Petrosapiens are resistant to fire and heat, such as that generated by a Pyronite, much like an ordinary diamond.[11]

Because they are made out of organic crystals, Petrosapiens are immune to aging. Therefore, they are impervious to time rays generated by a Chronosapien or a Chronian, as diamonds do not age.[12][13]

Petrosapiens can regenerate, but to a limited extent. They can also extend their arms, which allows them to propel themselves upwards by pushing against the ground.[14][15]

If under the effects of a cold virus, Petrosapiens are able to sneeze out tiny sharp crystals from their mouths. It is unknown if they can do this when they are not sick, however.[2]


Neither Petrosapiens nor their crystalline constructs are invulnerable and can crack and break like glass if they are exposed to sonic vibrations or are impacted with enough force.

Certain ultra-high-pitched sound waves can cause them to completely shatter and 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.

While Diamondhead can regenerate, there is a limit to how much damage he can recover from.

Despite being fireproof, a Petrosapien's shard projectiles can be dissolved by an Evolved Methanosian's fire blasts.[16]

Petrosapiens can be easily blinded by a Lepidopterran's slime should it get all over their face.[17]

Diamondhead can slip on certain surfaces, such as ice generated by a Polar Manzardill, as demonstrated by Tetrax.[18]

Notable Petrosapiens

Notable Petrosapien Hybrids


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


  • Petrosapien diamond bears a resemblance to Taydenite, though they are not made of it and their crystals have no real value.[DJW 1]
  • According to Derrick J. Wyatt, Petrosapiens do not have the ability to levitate crystal prisms, make explosive projectiles, and absorb energy; the reason why Diamondhead was shown doing so was due to a glitch in the Omnitrix.[DJW 2]
    • The reason behind the appearance of these powers on the show might be due to some storyboard artist who was not familiar with Diamondhead's powers.[DJW 2]
    • However, it is unknown if this is canon as Matt Wayne seemed to be unaware of the existence of glitch powers.[MW 2]
  • While Petrosapiens are resistant to fire, ironically real diamonds, being the only gem made of pure carbon, are known to be highly flammable under the right conditions.


Crew Statements

Derrick J. Wyatt

Matt Wayne


Sapient Species
AcrosianAerophibianAmperiAnoditeAppoplexianArachnichimpArburian PelarotaAtrocianBiot-savartianCelestialsapienCerebrocrustaceanChimera Sui GenerisChronianChronosapienChurlCitrakayahConductoidContumeliaCrystalsapienDetroviteDracosianDragonsEctonuriteFloraunaGalileanGalvanGalvanic MechamorphGeochelone AerioGimlinopithecusGourmandHighbreedHulexHuman (Osmosian)IckthyperambuloidIncurseanKineceleranKraahoLenopanLepidopterranLewodanLimaxLoboanMaxatomarMerlinisapienMethanosianNaljianNecrofriggianNemuinaNosedeenianOpticoidOrishanOrthopterranOryctiniPantophagePetrosapienPiscciss PremannPiscciss VolannPlanchakülePolar ManzardillPolymorphProtostPrypiatosian-BPugnavorePyroniteRevonnahganderSegmentasapienSlimebioteSonorosianSotoraggianSphoeroidSplixsonSylonnoidSynthroidTalpaedanTetramandThep KhufanTo'kustarTransylianUxoriteVaxasaurianVladatVreedleVulpimancerZaroffian
Unnamed Sapient Species
Argit'sAstrodactyl'sAtomix'sBall Weevil'sDagger AliensDecka'sEnforcer Alien'sGutrot'sHobble'sKickin Hawk'sMedic'sMole-Stache'sPakmar'sPickaxe AliensProbity'sStone CreaturesTack'sTechadon Weapon Master'sTiny'sToepick's
Evolved Sapient Species
Evolved AppoplexianEvolved ArachnichimpEvolved Arburian PelarotaEvolved GalileanEvolved GalvanEvolved HumanEvolved MethanosianEvolved NecrofriggianEvolved Polar ManzardillEvolved SonorosianEvolved To'kustarEvolved VaxasaurianEvolved Vulpimancer
Non-Sapient Species
Airborne Clown VirusAldebaran BeidafangsAnubian BaskurrBuglizardCassiopeian Dream EaterChupacabraCorrupturaCrabdozerDasypodidaeDravekGracklflintHavok BeastHumpbackusKaosseffexx UltimasauriaLucubraMuroidNanochipNull GuardiansOmnivoraciousPallorfangPanuncianPsycholeopterranQuartilloptusRodilia DentiaRoot SharkSand RipperScreegitScrutinSlammoidTerroranchulaVicetopusVolaticus biopsisWigzelian Org BeastXenocyteZiboson
Unnamed Non-Sapient Species Evolved Non-Sapient Species
Cyber SquidsLiving MushroomsMucilator'sSquid MonstersTime Beasts Evolved Panuncian
Non-Canon Sapient Species
Sool & Gontu's Species
Non-Canon Non-Sapient Species
Cyber Squids (Vilgax Attacks)