Prehistoric Farm WIKI
In-game model capture of Ichthyostega.
Captured game-model render.
2D capture

Verified in-game · Oct 2026

RareDevonian

Ichthyostega

One of the first four-legged animals to haul itself out onto land.

Period
Devonian
Rarity
Rare
Habitat
Riverbanks
Movement
Walker
DNA / Egg
5 fossils to make an egg
Weight
Random; shown on hatch
Acquire
Exchange a full fossil set at Dr. Ivy's DNA Lab
Contents

Growth Timeline

Growth time varies by rarity. Keep Belly above half for growth to continue.

Dinosaur growth time from hatching
StageElapsed time from hatchingRideableNotes
NewbornAt hatchingNo
JuvenileUnknownNo
SubadultUnknownYesRideable stage
AdultUnknownYes
ElderUnknownYes
Time between dinosaur growth stages
Stage reachedTime from previous stageRideableNotes
NewbornAt hatchingNo
JuvenileUnknownNo
SubadultUnknownYesRideable stage
Adult≈120 minYes
ElderUnknownYes

Fossils & DNA

Devonian period dinosaurs require 5 fossils to obtain an egg. See Fossils & DNA for the general DNA Lab rule and island-size requirements.

Hatching

This dinosaur's eggs take 5 min to hatch. Size is random and revealed when the egg hatches. Possible dinosaur sizes are Tiny, Small, Normal, Big, Giant, and Colossal. Tutorial eggs may hatch faster; see Eggs & Incubation.

Feeding

Belly over 50%Growth continuesBelly at or below 50%Growth stops
  • Meat12 coins eachMeat-eaters, sea creatures, and omnivores
  • Veggies8 coins eachPlant-eaters and omnivores
  • FishCaught while fishingCan feed meat-eating dinosaurs

Put food in the hotbar, approach a dinosaur on the ranch, and press F.

Growth & Feeding guide