# [Archelon](Rules\Source\bestiary\beast/archelon-xmm.md)
*Source: Monster Manual (2024) p. 349. Available in the <span title='Systems Reference Document (5.2)'>SRD</span> and the Free Rules (2024)*
## Animals
Use these stat blocks to represent the creatures they're named for or other similar creatures. For example, the [Panther](/Rules/Source/bestiary/beast/panther-xmm.md) stat block can also represent a mountain lion, while the [Giant Goat](/Rules/Source/bestiary/beast/giant-goat-xmm.md) stat block might represent a buffalo. Any of these stat blocks might also serve as fantastical animals with distinctive names and cosmetic details unique to your D&D adventures.
```statblock
"name": "Archelon (XMM)"
"size": "Huge"
"type": "beast"
"subtype": "dinosaur"
"alignment": "Unaligned"
"ac": !!int "17"
"hp": !!int "90"
"hit_dice": "12d12 + 12"
"modifier": !!int "3"
"stats":
- !!int "18"
- !!int "16"
- !!int "13"
- !!int "4"
- !!int "14"
- !!int "6"
"speed": "20 ft., swim 80 ft."
"skillsaves":
- "name": "[Stealth](/Rules/Source/skills.md#Stealth)"
"desc": "+5"
"senses": "passive Perception 12"
"languages": ""
"cr": "4"
"traits":
- "desc": "The archelon can breathe air and water."
"name": "Amphibious"
"actions":
- "desc": "The archelon makes two Bite attacks."
"name": "Multiattack"
- "desc": "*Melee Attack Roll:* +6, reach 5 ft. *Hit:* 14 (3d6 + 4) Piercing damage."
"name": "Bite"
"source":
- "XMM"
"image": "/Rules/Source/bestiary/beast/token/archelon-xmm.webp"
```
^statblock
## Environment
underwater