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

Verified in-game · Oct 2026

EpicCambrian

Opabinia

Five stalked eyes and a long trunk ending in a claw.

Period
Cambrian
Rarity
Epic
Habitat
Open water
Movement
Swimmer
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
Subadult≈54 minYesRideable stage
AdultUnknownYes
Elder≈240 min (4 h)Yes

Fossils & DNA

Cambrian 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 10 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