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These values may differ with what you see in-game or written elsewhere. But that is what the dossier says.
Common Name
Elasmosaurus remuspissa
Time Period
Late Cretaceous
Logo Steam.png 181.0
June 30, 2015
Logo Xbox One.svg 729.0
December 16, 2015
Logo PS4.svg 501.0
December 6, 2016
Logo Mobile.svg 1.0
May 24, 2018
Logo Nintendo Switch.png 599.0
November 30, 2018
Spawn Command
admincheat summon Plesiosaur_Character_BP_C
admincheat SpawnDino "Blueprint'/Game/PrimalEarth/Dinos/Plesiosaur/Plesiosaur_Character_BP.Plesiosaur_Character_BP'" 500 0 0 35
XP For Kill
30 XP
Special Loot Chance
Feces Size
Gestation Time
7h 56m 11s
Baby Time
18h 31m 6s
Juvenile Time
3d 2h 4m 25s
Adolescent Time
3d 20h 35m 32s
Total Maturation Time
7d 17h 11m 6s
Breeding Interval
18h - 2d

The Island Topographic Map.jpg
Spawning Plesiosaur The Island.svg

The Center Topographic Map.jpg
Spawning Plesiosaur The Center.svg

Ragnarok Ocean Topographic Map.jpg
Spawning Plesiosaur Ragnarok.svg

Common             Rare
  Untameable   Cave

The Elasmosaurus (el-lazz-mo-sore-us), more commonly known as the Plesiosaur (PLEE-see-uh-sore), is one of the marine Reptiles in ARK: Survival Evolved.

Basic Info[edit | edit source]

Dossier[edit | edit source]

This dossier section is intended to be an exact copy of what the survivor Helena, the author of the dossiers has written. There may be some discrepancies between this text and the in-game creatures.


Elasmosaurus remuspissa is typically found in the deep oceans, and has a strange role in the oceanic food chain. It almost exclusively hunts the smaller creatures in the waters, leaving most even moderately large creatures alone. The sheer size of the Elasmosaurus means that the quantity of food it must eat to sustain itself is nothing short of enormous.

Elasmosaurus is a formidable fighter. Aside from the Megalodon, I have only ever seen two creatures bring down an Elasmosaurus: a Mosasaurus, and human beings. Though I will admit, I have yet to thoroughly explore the staggeringly deep underwater caverns surrounding the Island.


Much like the Brontosaurus on land, Elasmosaurus is an excellent way to transport large quantities of goods over water. These powerful creatures are in fact so large that they can be used as mobile water bases. Ambitious tribes sometimes build bunkers right onto the backs of Elasmosaurus instead of building cargo ships.

~ Helena

Behavior[edit | edit source]

Plesiosaurs swim around in groups of two or three in the depths of the ocean, never surfacing. When players get too close, they start to attack and will follow them for a short distance; they seem to lose interest quickly, especially when swimming vertically.

Appearance[edit | edit source]

The Plesiosaur has an almost teardrop-shaped body. Its size, long neck, and four whale-like flippers make it unmistakable for any other creature. The neck itself makes up half of the creature's length, and the mouth is lined with many sharp teeth. Commonly found in pairs, this large marine reptile hunts in the island's deeper waters for fish and squid, working as a team to corral their prey. Despite their size and often camouflaged coloration, Plesiosaurs are sometimes preyed upon by other large marine predators and, occasionally, adventurous Spinosaurus heading out from the coast.

Color Scheme and Regions

This section displays the Plesiosaur's natural colors and regions. For demonstration, the regions below are colored red over an albino Plesiosaur. The colored squares shown underneath each region's description are the colors that the Plesiosaur will randomly spawn with to provide an overall range of its natural color scheme. Hover your cursor over a color to display its name and ID.

Server admins can use this region information in the Console Command "cheat SetTargetDinoColor <ColorRegion> <ColorID>".
For example, "cheat SetTargetDinoColor 0 6" would color the Plesiosaur's "body" magenta.

Plesio PaintRegion0.jpg
Region 0:
Plesio PaintRegion1.jpg
Region 1:
Facial Fins
Plesio PaintRegion2.jpg
Region 2:
Underside Highlights
X mark.svg

Region 3 is not used
for this Creature.

Plesio PaintRegion4.jpg
Region 4:
Plesio PaintRegion5.jpg
Region 5:

Drops[edit | edit source]

Base Stats and Growth[edit | edit source]

Note that creatures will have different stats in Survival of the Fittest

Basic Stats
Attribute Amount at Level 1 Increase per point Taming Bonus
Wild Domesticated1 Add Mult
Health.png Health 2400 +288 +3.24% 0.0224
Stamina.png Stamina 800 +80 +10%
Oxygen.png Oxygen 150 +15 N/A
Food.png Food 5000 +500 +10% 15%
Weight.png Weight 800 +16 +4%
Melee Damage.png Melee Damage 752 +3.75 +1.7% 14% 17.6%
Movement Speed.png Movement Speed 100% N/A3 +0.5%
Torpidity.png Torpidity 1600 +96 N/A4 0.5

1Percentages are based on the value of the stat the moment the creature was tamed (after taming effectiveness)
2The absolute Base Damage is shown here instead of the percentage.
3Wild creatures do not level up movement speed
4Torpidity increases every level on wild creatures, but can not be increased once they are tamed.

Movement Speed
Movement Type Base Speed Sprinting Stamina Used
Wild Domesticated
Walking 800 ? ? 20
Swimming 800 N/A N/A N/A

Attack Values
Bite Stamina Cost Attack Range Description
Base Minimum Activation Using the Left Mousebutton (PC), R2 Button (PS4), RT Button (Xbox One), the Plesiosaur bites the target.
0 2000 0 2300
Attack Type Damage Projectile Values Torpor Values Status Effect: Stamina Status Effect: Torpidity
Life Impulse Radius Base Mult Duration Damage Mult Amount Duration Damage Mult Amount
Melee 75

Wild Stats Level-up

Type in values of a wild creature to see on which stats it's emphasized. Green values on a high-level creature are very good for breeding. If you have already tamed your creature you can try to recover the breeding-stats with an external tool.[1]


The stat-calculator does not work in the mobile-view, see here for alternatives: Apps

Note that after the creature is tamed it gets bonuses on some stats depending on the taming effectiveness. This makes it hard to retrieve the levels on a tamed creature, so this tool is only for wild ones, but gives a first impression, how well the stats are distributed.

Combat[edit | edit source]

This section describes how to fight against the Plesiosaur.

General[edit | edit source]

It is recommended to fight in a group against a Plesiosaur. If alone, a powerful water mount or SCUBA Flippers can be invaluable. Remember that there will be two and possibly more(so far, the highest recorded amount around a single sea cave has been six individuals) attacking, so keep this in mind.

Strategy[edit | edit source]

As the Plesiosaur will only reach up to a certain height, you may be able to swim above where it won't reach and shoot down. Make sure during a battle that other creatures in the water do not attack as well. Megalodon and Dunkleosteus in the area will prove deadly and a Mosasaur can ruin the adventure if it is gone unnoticed.

With SCUBA Flippers it is easy to keep swimming above it and it will only rarely take a hit on you.

Weaponry[edit | edit source]

The crossbow is most recommended for ranged attacks, as it can be fired underwater. Melee weapons can be used, but are not recommended, due to the Plesiosaur's attack range and AOE (Area Of Effect). A melee battle will almost always end in the Plesiosaur's favor. But if you have a crossbow, then you have the advantage against the Plesiosaur instead of the other way around.

Dangers[edit | edit source]

As a larger creature, the Plesiosaur has a bigger attack range, giving it a melee advantage. Try using crossbows when attacking it. Beware of other creatures in the area. Staying too close to the sea floor can expose the player to the poisonous sting of a Eurypterid, which neutralizes the player completely. Such a hindering leads to certain death.

Weakness[edit | edit source]

Although very large, the Plesiosaur can be weak if trapped inside cave mouths. This can be useful for both killing it or taming it.

Taming[edit | edit source]

For general infos about domesticating a wild creature see Taming.

KO Strategy[edit | edit source]

The taming of the Plesiosaur is by far one of the most difficult in the game. Generally, the Plesiosaur's level seems to create an extreme difference in the resources required to tame. Due to their very fast torpor decrease, you need a large amount of narcotics to maintain a Plesiosaur unconscious.

Bows and guns will not work underwater and wild Plesiosaurs will not swim to the surface of the ocean, so you will need to either use a crossbow or lure the Plesiosaur into a cave where they can surface.

Another technique is to use the crossbow and attack the Plesiosaur from above. They seem to lose interest in you when you're near the surface, this allows you to take shots at them while still moving far enough away to make them lose interest. Repeat this process and you should be able to knock it out without much issue. This still leaves the risk of Megalodons and other Plesiosaurs attacking you and your tame, though, so be cautious.

It is also recommended to have a raft with some storage boxes and beds floating above the spot where you are planning to tame a Plesio in case you need to respawn after dying, or you want to store your narcotics and other valuables you don't want to lose. However, beware of the mighty leedsichthys which can destroy a raft extremely quickly, caution is advised.

If you lure one to an underwater cave, you can stand inside the cave where you can breathe air and tranq it safely. Then use your Megalodon to hunt for prime meat, and you can tame it very quickly.

Taming Food[edit | edit source]

Plesiosaur.png Level 1 Narcoberry Narcotic Bio Toxin Time
Kibble.png Kibble (Rex Egg) 7 9 3 2 0:13:26
Raw Mutton.png Raw Mutton 14 40 10 5 0:16:49
Cooked Lamb Chop.png Cooked Lamb Chop 26 172 42 21 0:31:10
Raw Prime Meat.png Raw Prime Meat 18 84 21 11 0:21:37
Cooked Prime Meat.png Cooked Prime Meat 35 272 67 34 0:41:58
Raw Prime Fish Meat.png Raw Prime Fish Meat 44 129 32 16 0:26:25
Raw Meat.png Raw Meat 53 471 115 58 1:03:37
Cooked Prime Fish Meat.png Cooked Prime Fish Meat 88 385 94 47 0:54:15
Cooked Meat.png Cooked Meat 105 466 114 57 1:03:01
Raw Fish Meat.png Raw Fish Meat 132 615 150 75 1:19:13
Cooked Fish Meat.png Cooked Fish Meat 263 612 149 75 1:18:55
KO: Wooden Club Hits × 160; Slingshot Hits × 66; Tranquilizer Arrows with a Bow × 18; Tranquilizer Arrows with a Crossbow × 11; Tranquilizer Dart Shots × 8; Shocking Tranquilizer Dart Shots × 4
Torpidity-depletion: 2.14 / s, Time until all torpidity is depleted: 00:12:30
Plesiosaur.png Level 30 Narcoberry Narcotic Bio Toxin Time
Kibble.png Kibble (Rex Egg) 16 119 32 16 0:30:43
Raw Mutton.png Raw Mutton 34 237 63 32 0:40:49
Cooked Lamb Chop.png Cooked Lamb Chop 62 630 168 84 1:14:20
Raw Prime Meat.png Raw Prime Meat 42 350 93 47 0:50:25
Cooked Prime Meat.png Cooked Prime Meat 84 940 250 125 1:40:42
Raw Prime Fish Meat.png Raw Prime Fish Meat 105 498 132 66 1:03:01
Raw Meat.png Raw Meat 125 1518 403 202 2:30:01
Cooked Prime Fish Meat.png Cooked Prime Fish Meat 209 1270 337 169 2:08:51
Cooked Meat.png Cooked Meat 250 1518 403 202 2:30:01
Raw Fish Meat.png Raw Fish Meat 313 1961 521 261 3:07:49
Cooked Fish Meat.png Cooked Fish Meat 625 1958 520 260 3:07:31
KO: Wooden Club Hits × 439; Slingshot Hits × 179; Tranquilizer Arrows with a Bow × 49; Tranquilizer Arrows with a Crossbow × 28; Tranquilizer Dart Shots × 20; Shocking Tranquilizer Dart Shots × 10
Torpidity-depletion: 3.55 / s, Time until all torpidity is depleted: 00:20:37
Plesiosaur.png Level 60 Narcoberry Narcotic Bio Toxin Time
Kibble.png Kibble (Rex Egg) 25 283 79 40 0:47:59
Raw Mutton.png Raw Mutton 54 502 140 70 1:04:49
Cooked Lamb Chop.png Cooked Lamb Chop 99 1201 334 167 1:58:41
Raw Prime Meat.png Raw Prime Meat 67 705 196 98 1:20:25
Cooked Prime Meat.png Cooked Prime Meat 134 1746 485 243 2:40:38
Raw Prime Fish Meat.png Raw Prime Fish Meat 167 962 267 134 1:40:13
Raw Meat.png Raw Meat 200 2776 771 386 4:00:01
Cooked Prime Fish Meat.png Cooked Prime Fish Meat 334 2333 648 324 3:25:54
Cooked Meat.png Cooked Meat 400 2776 771 386 4:00:01
Raw Fish Meat.png Raw Fish Meat 500 3555 987 494 5:00:01
Cooked Fish Meat.png Cooked Fish Meat 1000 3555 987 494 5:00:01
KO: Wooden Club Hits × 727; Slingshot Hits × 297; Tranquilizer Arrows with a Bow × 81; Tranquilizer Arrows with a Crossbow × 47; Tranquilizer Dart Shots × 33; Shocking Tranquilizer Dart Shots × 17
Torpidity-depletion: 4.63 / s, Time until all torpidity is depleted: 00:26:11
Plesiosaur.png Level 90 Narcoberry Narcotic Bio Toxin Time
Kibble.png Kibble (Rex Egg) 35 511 147 74 1:07:10
Raw Mutton.png Raw Mutton 74 810 233 117 1:28:49
Cooked Lamb Chop.png Cooked Lamb Chop 136 1836 526 263 2:43:02
Raw Prime Meat.png Raw Prime Meat 92 1109 318 159 1:50:25
Cooked Prime Meat.png Cooked Prime Meat 184 2632 754 377 3:40:34
Raw Prime Fish Meat.png Raw Prime Fish Meat 230 1491 427 214 2:18:01
Raw Meat.png Raw Meat 275 4144 1188 594 5:30:01
Cooked Prime Fish Meat.png Cooked Prime Fish Meat 459 3494 1001 501 4:42:58
Cooked Meat.png Cooked Meat 550 4144 1188 594 5:30:01
Raw Fish Meat.png Raw Fish Meat 688 5289 1516 758 6:52:49
Cooked Fish Meat.png Cooked Fish Meat 1375 5285 1515 758 6:52:31
KO: Wooden Club Hits × 1015; Slingshot Hits × 415; Tranquilizer Arrows with a Bow × 113; Tranquilizer Arrows with a Crossbow × 65; Tranquilizer Dart Shots × 46; Shocking Tranquilizer Dart Shots × 23
Torpidity-depletion: 5.6 / s, Time until all torpidity is depleted: 00:30:13
Plesiosaur.png Level 120 Narcoberry Narcotic Bio Toxin Time
Kibble.png Kibble (Rex Egg) 44 738 217 109 1:24:26
Raw Mutton.png Raw Mutton 94 1148 337 169 1:52:49
Cooked Lamb Chop.png Cooked Lamb Chop 173 2514 738 369 3:27:23
Raw Prime Meat.png Raw Prime Meat 117 1546 454 227 2:20:25
Cooked Prime Meat.png Cooked Prime Meat 234 3570 1048 524 4:40:30
Raw Prime Fish Meat.png Raw Prime Fish Meat 292 2049 602 301 2:55:13
Raw Meat.png Raw Meat 350 5585 1639 820 7:00:01
Cooked Prime Fish Meat.png Cooked Prime Fish Meat 584 4718 1385 693 6:00:01
Cooked Meat.png Cooked Meat 700 5585 1639 820 7:00:01
Raw Fish Meat.png Raw Fish Meat 875 7102 2085 1043 8:45:01
Cooked Fish Meat.png Cooked Fish Meat 1750 7102 2085 1043 8:45:01
KO: Wooden Club Hits × 1303; Slingshot Hits × 532; Tranquilizer Arrows with a Bow × 145; Tranquilizer Arrows with a Crossbow × 83; Tranquilizer Dart Shots × 59; Shocking Tranquilizer Dart Shots × 30
Torpidity-depletion: 6.5 / s, Time until all torpidity is depleted: 00:33:23
Plesiosaur.png Level 150 Narcoberry Narcotic Bio Toxin Time
Kibble.png Kibble (Rex Egg) 54 1010 302 151 1:43:37
Raw Mutton.png Raw Mutton 114 1506 451 226 2:16:49
Cooked Lamb Chop.png Cooked Lamb Chop 210 3221 964 482 4:11:44
Raw Prime Meat.png Raw Prime Meat 142 2007 601 301 2:50:25
Cooked Prime Meat.png Cooked Prime Meat 284 4545 1360 680 5:40:26
Raw Prime Fish Meat.png Raw Prime Fish Meat 355 2643 791 396 3:33:01
Raw Meat.png Raw Meat 425 7077 2118 1059 8:30:01
Cooked Prime Fish Meat.png Cooked Prime Fish Meat 709 5988 1792 896 7:17:05
Cooked Meat.png Cooked Meat 850 7077 2118 1059 8:30:01
Raw Fish Meat.png Raw Fish Meat 1063 8985 2688 1344 10:37:49
Cooked Fish Meat.png Cooked Fish Meat 2125 8981 2687 1344 10:37:31
KO: Wooden Club Hits × 1591; Slingshot Hits × 650; Tranquilizer Arrows with a Bow × 177; Tranquilizer Arrows with a Crossbow × 101; Tranquilizer Dart Shots × 72; Shocking Tranquilizer Dart Shots × 36
Torpidity-depletion: 7.37 / s, Time until all torpidity is depleted: 00:36:00

Note that the values are for optimal cases, always bring extra supplies!
For a level-dependent count of resources needed, try an external taming calculator.

Ingredients for Kibble.png Kibble (Rex Egg): 1 × Rex Egg or Tek Rex Egg.png Rex Egg or Tek Rex Egg , 1 × Longrass.png Longrass , 1 × Prime Meat Jerky.png Prime Meat Jerky , 2 × Mejoberry.png Mejoberry , 3 × Fiber.png Fiber , 1 × Water.png Water

Utility[edit | edit source]

Roles[edit | edit source]

  • Mobile Base Platform: The platform saddle can be used to build a mobile aquatic base. Structures do not affect Dinosaur weight capacity, but storage does; increase weight if used for transport (Level up Weight, Speed, and Stamina).
  • Warship: The Plesiosaur has high health and damage, which makes it useful in battle. The platform saddle also allows for cannons and siege weapons, allowing for naval warfare (Level up Health and Damage).
  • Aquatic Tank: Having a high base health, the Plesiosaur can take massive damage (Level Health and Melee Damage).
  • Oil Rig: Due to the fact the Plesiosaur can carry a large amount of weight, you can make it built for collecting enormous amounts of oil and converting it to gasoline. While not an ideal or recommended use, you could also use it for collecting crystal as well (Level up Weight, Damage and Health).
  • Deep Sea Crate Farmer: While there are other more expendable creatures such as the Ichthy and Manta that can be used to search for deep sea crates, the Plesiosaur can not be put aside as another contender for this by virtue of its respectable speed and much higher combat capability to handle various wild creatures that may be guarding a loot crate. In the case of a PvP situation it is nearly certain that anyone on a smaller creature will not trifle with a Plesiosaur being used for these runs. As of v265.0 the Plesiosaur got a significant buff to its stamina (about 3x more base stamina) so it can sprint for much longer periods of time without stamina investment. It also easily has enough carry weight to carry any items found without being encumbered. (Level up speed and some stamina.)
  • Destroyer: Along with its very high speed, good stamina and platform saddle you can put 2 miniguns to both ends of the platform and one rocket turret to the middle, so it can be used to destroy any raft, beach base or other sea animal in seconds and make a speedy escape.

Notes/Trivia[edit | edit source]

For information pertaining specifically to the real-world Plesiosaur, see the relevant Wikipedia article

  • The generic name means "thin-plate lizard". The specific name appears to be intended to mean "thick oar" (referring to its flippers), but is incorrectly constructed and of the wrong grammatical gender; the correct form would be spissiremus.
  • The dossier for Elasmosaurus actually mentions the underwater caves found in the game. This also seems to indicate that there are even more fearsome creatures in the depths of the caverns.
  • Due to its enormous size the taming time is extremely long in which it is susceptible to enemies like Megalodons. They might also lower the effectiveness due to possible inflicted damage.
  • Plesiosaurs always drop Firework Flare Gun Skin when killed.
  • Plesiosaurs are pretty rare to find but they are usually near the underwater caves, in numbers varying from about 1 - 4.
  • Despite the dossier stating it leaves most creatures the size of humans and larger alone, it is common for them to attack megaladons and other creatures on sight.
  • Before the introduction of the crossbow, plesiosaurs were usually kited into an underwater cave so that they could be tranqed.
  • The name 'Plesiosaur' refers to a large group of animals that ruled the seas from the Jurassic up to the end of the Age of Reptiles. Genus Elasmosaurus thrived in the shallow seas that covered the central United States during the Late Cretaceous period.
  • The Dossier says that the Megalodon is the only predator of the Plesiosaur, though the latter is mostly stronger.
  • Quite disturbingly the Dossier states that "Have yet to explore ... The underwater caves" directly after talking about predators of the Plesiosaur. This could hint at a new underwater boss or monster of the deep. A similar hint is dropped on the Ichthy's dossier in the form of a giant underwater monster behind it in a size comparison.
  • Until v263.0 Plesios always spawned with a minimum level of 35.

Gallery[edit | edit source]

References[edit | edit source]