Prehistoric seacreatures
Java mod listed for Minecraft 1.20. File opened and checked on 7 Oct 2026; downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.








Requires Geckolib
A mod that adds the prehistoric seacreatures along with new cool Items, tools, weapons and armour.
Liopleurodon is a large and deadly swimming reptile that is neutral on sight but if attacked it will defend itself at all costs.
The liopleurodon has serrated teeth that deals massive damage on impact.
If defeated, the liopleurodon will award you with their teeth that can be used to craft the serrated blade.
The serrated blade adds bleed to a creature on impact.
The sword can be repaired if combined with serrated teeth.
You can also craft a serrated bow that shoots the Orthoceras arrow.
The dunkleosteus is a aggressive fish that will target the player and hunt them down at any cost!
The dunkleosteus does also target smaller prey like salmon, cod and tropical fishes.
In addition to the dunkleosteus it drops dermal plates that can be crafted in to a new armourset.
The new armourset will grant the player with increased survivability while exploring the seas by giving the player increased movement speed while under water and the ability to breathe underwater.
The armour can be repaired if combined in a anvil with dermal plates.
Trilobite is a small animal living at the bottom of the ocean.
If defeated it will grant you it's shell which can be consumed for extra protection.
It can also be used for crafting a shield if you combind it in a craftingtable with a dermal plate.
Jaekelopterus is a freshwater living creature who wanders at the bottom of rivers.
It has big powerfull claws that it will sting you with.
If defeated the Jaekelopterus will give you JaekelopterusFragments that can be combinded like a hoe in a craftingtabe to form it's original state a JaekelopterusClaw.
The Claw is a powerfull weapon which will give your opponent a hard time escaping
Sacabambaspis is a fish living in the ocean, it might seem weak but it's weaker, it has enough health to survive some hits and even nab you. After it nabs you it will flee like a coward!
If you manage to kill The Sacabambaspis you will be able to take it's meat and cook it for a delicious meal.



Ichthyosaurus is a creature found swimming in packs in the ocean.
If attacked the whole group will fight you back.
However if the ichthyosaurus is fed with some sacabambaspis meat it can be tamed.
Equip it with a saddle to be able to ride it.

brygmophyseter
The brygmophyseter is a whale living in the ocean.
If fed Desmatophoca meat it can be tamed.
If the brygmophyseter is tamed it can be equiped with a saddle to enable riding.

Desmatophoca
The Desmatophoca is a creature living in the ocean.
The Desmatophoca swims around randomly just vibing.
If killed they will drop Desmatophoca meat which is used for taming the brygmophyseter

Orthoceras
The Orthoceras is a friendly entity living in the ocean.
If the Orthoceras is defeated it will drop it's shell.
If the shell is combinded with a stick and a feather it will be crafted in to an Orthoceras arrow
The arrow can be shot by the serraded bow.
When shot under water the arrow will shatter and deal damage to all creatures nearby.
If the arrow misses and hits a block it will also shatter and drop a fragment that can be crafted back in to a shell.

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- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as prehistoric_seacreatures-1.7.0-forge-1.20.1.jar — drop this file into the mods folder
- Download size: 4.2 MB
- Download link checked 3 Oct 2026 — working
These come from our own check of the pack file, not from the source page.

