Dinosaur King
Dinosaur King

It is only known from its hip bones and the start of its tail. While formerly considered a tyrannosauroid, possibly a proceratosaurid, hence its name and assignment to the Fire Attribute, Siamotyrannus has since been reclassified as a late surviving metriacanthosaurid, but has more recently been moved out to an unplaced avetheropod (carnosaurs plus coelurosaurs). However, as it was introduced into Dinosaur King around 2007, this is somewhat excusable. As of 2024, it is recovered as a base tetanuran outside of the Orionides, as a close relative of Siamraptor.

General Statistics[]


full-sized Siamotyrannus

  • Name: Siamotyrannus isanensis
  • Name Meaning: Siamese Tyrant
  • Diet: Carnivore
  • Length: 6-7 meters (20-23 feet)
  • Time Period: Early Cretaceous (135 MYA)
  • Classification: Allosauroidea --> Metriacanthosauridae / Avetheropoda/Orionides --> (?)
  • Place Found: Thailand
  • Describer: Buffetaut, Suteethorn, and Tong, 1996

Dinosaur King Statistics[]

Arcade Stats[]

Siamotyrannus Intro

Siamotyrannus arcade battle intro

  • Attribute: Fire
  • Sign: Rock
  • Strength: 1200
  • Technique: 1000
  • Attack:
    • Rock (Critical): 570
    • Scissors/Paper: 440
  • Type:
    • Charge Type (in the data of the Alpha Fortress version)
    • Scissors-Scissors Type (in the data of the Japanese version)
  • Arcade Nickname: 熱帯の猛将 (The Warlord of Tropical)


This dinosaur has no official arcade release, but is included in the arcade game's programming. In Japanese arcade gameplay, it is used as one of the dinosaurs of Spectral Pirates in the gauntlet game mode.

DS Stats[]

Siamotyrannus Forest A2

Siamotyrannus DS battle intro

TCG Stats[]

Siamotyrannus TCG card

Siamotyrannus TCG card

  • Element: Fire
  • Icon: Rock
  • Power: 1400
  • Level: 2
  • Life: 1
  • Card Code: DKCG-010/160
  • Card Rarity: Common
  • Image From: (unclear, no comparisons exist)
  • Abilities:
[Berserk] When this Dinosaur attacks directly, you lose 1 Life Point.


  • DS Game Encyclopedia entry: Carnivore discovered in Thailand. Thought to be an early relative of the Tyrannosaurus[sic]
  • Its arcade card never appeared in any release edition, but the barcode was available in the machine and can be played if the game is mildly hacked (that is, to scan the corresponding barcode for it). It is also featured in the website's Dinosaur Museum. This probably means that Sega had intended to release it but ultimately didn't (perhaps resulting from Dinosaur King's hasty discontinuation).
  • Being programmed into the arcade but without a released card puts it into a similar position as the unnamed "Microraptor Move Card" and Tie Trap, though these Moves were never featured in other media, unlike Siamotyrannus.
  • Despite not properly being in the arcade game, it was featured in both the DS Game and TCG halfway through the franchise’s lifespan without issue.



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