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Vaxasaurians[1][2] are a dinosaur-like species from the planet Terradino.[merch 1]


Vaxasaurians are a humanoid dinosaur-like species, being beige in color. They have human-like hands with four fingers, each with large gray nails. They have long dinosaur-like tails.

When they grow, the Vaxasaurians' dinosaur features become more pronounced, growing Stegosaur-like plates on their back, a crest on their forehead and spikes on their tail. Also, on their shoulders, three plates separate and grow.

Female Vaxasaurians look like males, but wear bones and a big loincloth, much like that of a caveman.

Vaxasaurians from Dimension 23 are greyish-cyan in color.


Vaxasaurians reproduce by laying eggs.[1][2]


Vaxasaurians may eat their young.[note 1]

Powers and Abilities[]

Vaxasaurians possess incredible strength, being able to effortlessly lift and throw heavy objects up to a high altitude, even into near-earth orbit.[4][5] Technically speaking, at base size, they are physically stronger than Methanosians[DM 1] and Crystalsapiens,[DM 2] but weaker than Tetramands,[DM 1] some Highbreed,[6][7][DM 3] and Evolved Vaxasaurians. Their tails are also powerful enough to easily knock away Malware's third form.[8]

Similar to Tetramands, Vaxasaurians are strong enough to create shock waves by clapping their hands together.[MW 1] Vaxasaurians can also generate earthquakes.[9]

Vaxasaurians have the power to increase or decrease their own body size and mass using dimensional displacement.[DM 4] They can grow bigger up to nearly 60 feet[AF Brief 1][merch 2] at will, increasing their natural strength as they grow.[DM 1] They can also shrink down to about 10 feet.[DM 5]

When Vaxasaurians grow, their dinosaur features become more pronounced, growing Stegosauride features such as plates on their back, a crest on their forehead, and spikes on their tail. The plates on their shoulders and arms also separate and grow, giving them a more ferocious look. These features give them an extra edge in battle both defensively and offensively. Vaxasaurians can also generate their Stegosauride features without changing size.[10][DM 6]

Vaxasaurians possess a thick, armored hide, which has proven to be durable enough to withstand getting hit by truck,[11] a fall from a very high altitude,[6] pass through Baz-l's ship's force-field,[4] and survive indirect blasts from an Evolved Vaxasaurian's missiles,[12]

Vaxasaurians are capable of jumping extremely high despite their size and weight.[8]

Vaxasaurians are quite agile for their size, as Humungousaur could somersault onto one of the Forever Knights' battle horses,[13] perform a slide tackle,[5] and evade attacks while in mid-air.[8]

Vaxasaurians can survive in the vacuum of space for a few minutes.[14][15]

A Vaxasaurian's immense size and weight make them very useful for moving against strong suction forces[16] and powerful winds.[17]

Vaxasaurians has a powerful roar,[18] which Humungousaur once used to scare away a large group of reporters.[19]

Vaxasaurians can run on all fours in a similar fashion to a bull or a rhinoceros.[20]

Also like Tetramands, when infected with a cold, Vaxasaurians gain the ability to spit slime.[21]


Vaxasaurians with their naturally large physique, makes them a very easy target for enemy attacks. Even their base size makes it impossible for them to fit into small spaces.[22]

Vaxasaurians are more of land-based aliens, meaning they cannot breathe or swim underwater, though they can hold their breath for a very long time. Furthermore, due to their immense size and weight they can sink in water.[18]

Vaxasaurians are at a massive disadvantage against a Kaosseffexx Ultimasauria due to their ability to trap them in webbing. Furthermore, Vaxasaurians are unable to lift them without struggling.[23][24]

Vaxasaurians can be stung by an Aerophibian's neuroshock blasts.[25]

Vaxasaurians are vulnerable to acid.[26]

Vaxasaurians are weak against electricity, such as that generated by Amperi[27] and the Stalker.[28]

Vaxasaurians can be imprisoned by mana-generated crystals.[29]

Despite being resistant to strong winds, Vaxasaurians can be blown away by whirlwinds generated by Ascalon.[30]

Despite being resistant to heat, Vaxasaurians cannot hold objects, such as sewer lids, if they become too hot for them to hold.[31]

Like Tetramands, if Vaxasaurians are under the effects of a cold virus, their strength and stamina will be severely reduced.[21]


Vaxasaurians are technologically more advanced than Humans, as they can travel through space and engage with other species.[DJW 1]

Notable Vaxasaurians[]

Notable Mutant Vaxasaurians[]

Notable Vaxasaurian Hybrids[]

Non-Canon Vaxasaurians[]

Naming and Translations[]

Language Name Origin
Italian Vaxasaurian From the original English name
Polish Vaxazaur From Vaxasaurian
Portuguese (Br) Vaxasaurianos From the original English name
Romanian Vaxasaurian From the original English name
Russian Ваксасауриан From the original English name
Spanish (HA) Vaxasaurio
Vaxasuaurio (The Ultimate Heist)
From Vaxasaurio, Vaxasaurian
From Vaxasuaurio, Vaxasuaurian
Turkish Vaxasaurian From the original English name


Vaxasaurian comes from the Icelandic "vaxa", which means "to grow", and "sauria", which is a clade of lizards.


  • Vaxasaurians do not hibernate.[DJW 2]


  1. Sentient Ultimate Humungousaur recounts vivid memories of his mother trying to eat him,[3] however, it is unknown whether these memories were merely created with the transformation; belonged to the genetic donor of Humungousaur's DNA; or manifested in some other way.



Crew Statements[]

Dwayne McDuffie[]

Alien Force Series Master Brief[]

Matt Wayne[]

Derrick J. Wyatt[]

Sapient Species AcrosianAerophibianAmperiAnoditeAppoplexianAquarianArachnichimpArburian PelarotaAtrocianBiot-savartianCelestialsapienCerebrocrustaceanChimera Sui GenerisChronosapienChurlCitrakayahConductoidContumeliaCrystalsapienDetroviteDracosianDragonEctonuriteFloraunaGalileanGalvanGalvanic MechamorphGeochelone AeriosGimlinopithecusGourmandHighbreedHulexHuman (Osmosian)IckthyperambuloidIncurseanKineceleranKraahoLenopanLepidopterranLewodanLimaxLoboanLucubraMaxatomarMerlinisapienMethanosianNecrofriggianNemuinaNosedeenianOpticoidOrishanOrmerowonOrthopterranOryctiniPantophagePetrosapienPiscciss PremannPiscciss VolannPlanchakülePolar ManzardillPolymorphProtostPrypiatosian-APrypiatosian-BPugnavorePyroniteRevonnahganderSegmentasapienSlime-BiotSonorosianSotoraggianSphoeroidSplixsonSylonnoidSynthroidTalpaedanTetramandThalassianThep KhufanTo'kustarTransylianUxoriteVaxasaurianVladatVreedleVulpimancerYetiZaroffian
Unnamed Sapient Species Argit'sAstrodactyl'sAtomix'sBall Weevil'sDagger AliensDecka'sEnforcer Alien'sGutrot'sHobble'sInspector 13'sKickin Hawk'sMedic'sMole-Stache'sPakmar'sPickaxe AliensProbity'sRock MonstersSmoothie Vendor'sTack'sTentacle Vendor'sTiny'sToepick'sVulpinic Tortugan
Evolved Sapient Species Evolved AppoplexianEvolved ArachnichimpEvolved Arburian PelarotaEvolved GalileanEvolved GalvanEvolved HumanEvolved MethanosianEvolved NecrofriggianEvolved Polar ManzardillEvolved SonorosianEvolved To'kustarEvolved VaxasaurianEvolved Vulpimancer
Non-Sapient Species Aldebaran BeidafangAnubian BaskurrBuglizardCassiopeian Dream EaterChupacabraCorrupturaCrabdozerDasypodidaeDravekGracklflintHavoc BeastKaosseffexx UltimasauriaKrakkenMammothMicrochipMuroidMycetian Swamp HoppersNight MareNull GuardianOmnivoraciousPallorfangPanuncianPsycholeopterranPterodactylPyroxovoreQuartilloptusRoot SharkSandripperScreegitScrutinSlammoidTime BeastsTyrannosaurus RexVicetopusVolaticus biopsisWigzelian Org BeastXenociteZombie Clown Virus
Unnamed Non-Sapient Species Alien VerminKhoros Reptilian MountLiving MushroomsLiving PumpkinsMucilator'sPiscciss KrakenRobotic Squid AlienSquid MonsterTerroranchula's
Evolved Non-Sapient Species Evolved Panuncian
Non-Canon Sapient Species BasaltCephalod-aeChronianHumpbackusLaurianSool and Gontu's
Non-Canon Non-Sapient Species Cyber SquidMacerootSnap DragonThornhoundVulpin Serpent