All creatures use advanced gestation and baby stage speeds, all use gestation by default. Slots set to 600 instead of 300 and max allowed mutations to 40 instead of 20. Creatures are listed in chronological order as they were added, first to last.

Changes:

• Reduced creature size
  
• Enabled riding, breeding (uses gestation)
  
• Added fire attack, increased attack range and power
  
• Enabled leveling of speed
  
• Saddle slot allows the Classic Flyer Mod's Wyvern Stone for armor

Click for image[i.imgur.com]
Spawn Code:
Changes:

• Reduced creature size
  
• Enabled riding, breeding (uses gestation)
  
• Added lightning attack, increased attack range and power
  
• Enabled leveling of speed
  
• Saddle slot allows the Classic Flyer Mod's Wyvern Stone for armor

Click for image[i.imgur.com]
Spawn Code:
- Additional Organic Polymer sources
Changes:

• Reduced creature size
  
• Removed taming and riding ability
  
• Added to beaver spawn locations (should work on all maps with beaver dams)

Click for image[i.imgur.com]
Spawn Code:
Changes:

• Reduced creature size, stats from the seriously OP event creature used
  
• Created a custom saddle and saddle engram (cost is same as regular bronto saddle, removes ability to use the large platform saddle)

Click for image[i.imgur.com]
Spawn Code:
Changes:

• Increased creature size, stats
  
• Reduced inventory weight of most harvested resources (metal, stone, wood, flint, thatch, fiber, crystal, obsidian) from 1 to 0.0005.

Click for image[i.imgur.com]
Spawn Code:
- Modified Featherlite and Phoenix Hybrid
Changes:

• Inventory works as a forge (500x faster than a refining forge)
  
• Reduced inventory weight of most harvested resources (metal, stone, wood, flint, thatch, fiber, crystal, obsidian) from 1 to 0.00005.

Click for image[i.imgur.com]
Spawn Code:
- More changes coming soon
Changes:

• Increased creature size
  
• Increased per level increase for various stats to outperform standard herbivores
  
• Reduced inventory weight of most harvested resources (wood, berries, thatch) from 1 to 0.00005.

Click for image[i.imgur.com]
Spawn Code:
(Rebuilt from scratch on 04/19)
Changes:

• Based on assets from the Ragnarok modded map
  
• Custom projectile (now collides with structures)
  
• Reduced size by over 60%, inventory weight of most harvested resources (metal, stone, crystal, etc) from 1 to 0.0005
  
• All attacks harvest metal

Click for image[i.imgur.com]
Spawn Code:
Changes:

• Massively increased size and stats
  
• Converts 10 silica pearls and 1 obsidian to 10 black pearls in its inventory automatically
  
• Left click harvests pearls, right click harvests metal
  
• Reduced inventory weight of most harvested resources (black and white pearls, stone, metal, obsidian) from 1 to 0.0005

Click for image[i.imgur.com]
Spawn Code:
Changes:

• Massively increased size
  
• Stats based on Ankylo, slightly boosted
  
• Added ability to ride, hat armor (no saddle)
  
• Movement seriously increased, can climb steeper hills and jump small barriers.
  
• Left click harvests berries, right click harvests stone (testing in progress)
  
• Reduced inventory weight of most harvested resources (stone, metal, wood, thatch, berries) from 1 to 0.0005

Click for image[i.imgur.com]
Spawn Code:
Changes:

• Decreased size
  
• Removed all natural stat nerfs (enrage still possible), new stats based on Alpha Rex

Click for image[i.imgur.com]
Spawn Code:
Changes:

• Rideable (no saddle!), uses "Hat" for protection
  
• Stats based on zombie wyverns, takes no fall damage, special movement metrics
  
• Converts organic polymer to regular passively in its inventory, reduced inventory weight for polymer, paste and obsidian

Click for image[i.imgur.com]
Spawn Code:

Changes:

• Reduced creature size
  
• Enabled riding, breeding (uses gestation)
  
• Added poison projectile attack, increased attack range and power
  
• Enabled leveling of speed
  
• Saddle slot allows the Classic Flyer Mod's Wyvern Stone for armor

Click for image[i.imgur.com]
Spawn Code: