Plesiosaurus preview
Basic Information
Real Creature Real Creature

Plesiosaurus dolichodeirus

Nature Nature


Health Points Health Points

Adult: 30 30hearts

Infant: 10 (10hearts)

Attack Damage Attack Damage

0 (0hearts)

Hunger Points Hunger Points

125 125hunger

Breaks Blocks Breaks Blocks


Modeled By Bluestreak52 and Raptorfarian

8.0.0 UPDATEEdit

Plesiosaurus (pleh-see-oh-sawr-us, meaning "Near To Lizard") is a small to medium-sized passive aquatic prehistoric creature that was included in the original Fossils & Archeology mod. They are cathermal, meaning active throughout the day and night, and are the largest purely aquatic piscivores, meaning they only eat fish, at approximately 4.5 blocks long and half a block tall. There is no size difference between male and female, but males have a distinct texture difference being much brighter colored. Newborns are 0.7 blocks long, and are fully grown in 7 minecraft days. They can be given essense of chicken to grow faster, at the cost of hunger.

They can drop plesiosaurus meatplesiosaurus teethleg bonesarm bonesrib cages, vertebraeclawsfeet, and skulls upon death.

Plesiosaurus, like almost all other mobs, has a mood that can drop or be raised through various means. Having a low mood means it may attack or avoid you, having a high mood will make it neutral. Mood does not effect the plesiosaurus' behavior, as they are passive. Right-click it with a DinoPedia to see what its mood is at.

A fossil version of the plesiosaurus can be created by right-clicking a bio-fossil on the ground, which will create a random skeleton of a prehistoric creature with a small chance of it being a plesiosaur.

Like almost all other mobs in the mod, they do not spawn naturally in the world and must be created by the player through the culture vat. As they are aquatic reptiles, they hatch from egg sacs that need to be placed in water.


Plesiosaurus are calm passive mobs that will wander the ocean looking for fish or spawn to eat. They will never attack or counterattack any other mob, not even the prehistoric fish, as they are small and have no natural weapons. Oddly enough however, they can break any blocks weaker than iron (excluding reinforced glass). They can be quite fast while in water, but they require at least 2 blocks of water to swim properly, and they may become stuck on nearby lilypads if the plesiosaurus float to the surface. They will not suffocate when put on land, but they cannot move when out of water either. They have no prey despite technically being carnivores, and their predators are liopleurodon, mosasaurus, sarcosuchus, and spinosaurus. They will crowd around and attempt to attack the nautilus, but this seems to be bugged. Also, they can ride in Minecarts.

Plesiosaurus will interact with the bubble blower, and will chase toy balls, bringing up their mood significantly. They cannot however interact with scratching posts or tethered logs.

Adult plesiosaurs can breed and lay egg sacs every five minutes if there is a male and female present. The breeding probability is handled by how many individuals are nearby.


Plesiosaurus is automatically tamed when hatched from an egg sac, as the player is always within 6 blocks of the sac hatching. If the plesiosaurus is somehow not tamed at birth, it can be tamed with a whip. A tamed plesiosaurus can be ordered by an empty shell. They are not rideable after being tamed, as they are too small to carry a players weight.


Plesiosaurus is a piscivore that will not hunt any other mob or eat plants. They also cannot eat from feeders. This makes them much more dependent on the player than most other mobs, as they require constant hand-feeding or dropping food near them. Plesiosaurus will eat all vanilla fish, all mod fish (alive and cooked, in item form only), fish spawn, and Sio-Chiu-Le.


Plesiosaur Idle
Plesiosaur living
Plesiosaur Hurt & Death
Plesiosaur hurt


A plesiosaur and an academy.
Basic Information
Real Creature Real Creature


Nature Nature


Health Points Health Points


Modeled By Flammarilva

7.2 UPDATEEdit

Note: The plesiosaurus is simply known as a plesiosaur in Build 7.2 and below.

Plesiosaurs (meaning "Near To Lizard") are prehistoric creatures that were included in the original Fossils and Archeology mod. It grows to an approximate size of 6 blocks tall and 11 blocks long in 7 Minecraft days. It can drop plesiosaur meatplesiosaur teethleg bonesarm bonesrib cages, vertebraeclawsfeet, and skulls upon death. Like most other mobs in the mod, they do not spawn naturally in the world and must be created by the player.


The plesiosaur is a semi-aquatic creature, meaning it can live on land as well as in the water. It has difficulties moving on land, so it is advisable to keep it in water (the eggs must be hatched on land, however). Plesiosaurs are piscivores and will therefore catch fish for themselves when in water. Their only predators are liopleurodon and mosasaurus, and they will not fight back against attacks.

Adult plesiosaurs breed every 5 minutes. The breeding probability is handled by how many individuals are nearby.


Plesiosaurs are easily tamable. You simply have to stand within six blocks of the egg as it hatches or hand-feed it fish. A plesiosaur can be ordered by an empty shell.
Nessie's Shipwreck

A player riding a plesiosaur on a sunken shipwreck.


Tamed plesiosaurs are rideable when they reach adulthood at seven days old. When ridden, the plesiosaur won't go hungry or grow up. It can be controlled only if the player is holding a Whip. Land movement uses the same WASD controls as normal movement. In water, however, the player must look up to swim upward and look down to swim downward. Please note that you can still drown while riding a plesiosaur underwater. It is not recommended that you dive for long periods of time without an enchantment or drinking a potion of water breathing.


Plesiosaurs fish for food on their own, but can also be hand-fed fish, Sio-Chiu-Le, and raw chicken. They do not eat from feeders.


Plesiosaur Idle
Plesiosaur living
Plesiosaur Hurt & Death
Plesiosaur hurt



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Carnivores appear in red. Herbivores appear in green. Omnivores appear in light blue. Piscivores appear in dark blue. Enemies/misc appear in brown. Defense Points means the creature can break blocks. Fire Ball means the creature is an apex predator/boss.