Ammonite Crab

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Ammonite Crab
Released							7 September 2017 (Update)
Members							Yes
Combat level							25
Size							2x2
Examine							Praise Helix!
Combat info
Hitpoints							100
Max hit							1 (Melee)
Aggressive							Yes
Poison							No
Weakness							Crush
Attack style							Crush
Attack speed
Combat stats
1				1				1				1				1
Aggressive stats
+0				+0				+0				+0				+0
Defensive stats
+0				+0				+0				+0				+0
Other bonuses												Immunities
+0			+0			+0			+0%			Not immune				Not immune
Advanced data
Monster ID							7799

25251001001 (Melee)? (edit)? (edit)? (edit)1111111111+0%0+00+00+00+00+00+00+00+00+00+00+00+00+00Ammonite CrabFile:Ammonite Crab.png7 September 2017 (Update)? (edit)? (edit)2x22YesPraise Helix!YesNoCrush? (edit)? (edit)CrushCrush4? (edit)0? (edit)None? (edit)Not immuneNot immuneNot immuneNot immune7799? (edit)7799Monster? (edit)? (edit)

Magic defence bonus: 0Attack speed: 4Attack bonus: 0Attack level: 1Combat level: 25Immune to venom: Not immuneNPC ID: 7799Immune to poison: Not immuneSlash attack bonus: 0Magic attack bonus: 0Hitpoints: 100Slash defence bonus: 0Stab attack bonus: 0Attack style: CrushPage type: MonsterSize: 2Ranged Strength bonus: 0Magic Damage bonus: 0Image: Stab defence bonus: 0Name: Ammonite CrabStrength level: 1Is members only: trueDefence level: 1Experience bonus: 0Magic level: 1Crush attack bonus: 0Strength bonus: 0Crush defence bonus: 0Range attack bonus: 0Range defence bonus: 0Ranged level: 1

Fossil Rock
Released							7 September 2017 (Update)
Members							Yes
Race							Crab
Quest NPC							No
Location							Fossil Island
Sells items							No
Gender							N/A
Examine							An outcrop embedded with an ammonite fossil.
Advanced data
NPC ID							7800

Fossil Rock7 September 2017 (Update)? (edit)? (edit)? (edit)YesCrabNoFossil IslandNoN/A? (edit)An outcrop embedded with an ammonite fossil.N/A78007800? (edit)? (edit)

NPC ID: 7800

Ammonite Crabs can be found on the most coastal areas and the most northern beaches of Fossil Island. They cannot be attacked by dwarf multicannons. They are popular among players for training.

Training Combat

Ammonite crabs are one of the creatures that are recommended as training monsters for members. They are used by members to train combat as they have high hit points and they have low defence and attack, meaning that the player takes little to no damage and can afk train on them. This involves running to a location where 2 or more crabs are spawned and attacking them. It will take a short while to kill one, with another one attacking at the same time but they do no damage so this is safe. By the time one has died, the one killed previously should respawn and start aggroing.

This will work until the aggro timer resets for them, which means they will not attack. This will end the afk cycle and the player will have to reset the timer by running so that the area of their minimap is out of view. They can then run back to the location and the crabs will be aggressive again.

Drops

Drop rates estimated based on 1,170,000 kills from the Old School RuneScape Wiki drop log project, unless otherwise cited.

Weapons

	Item	Quantity	Rarity	Price	High Alch
	Iron pickaxe	1	5/128	43	84

Fossilised currency

	Item	Quantity	Rarity	Price	High Alch
	Numulite	4	29/128	76	120
	Numulite	2	8/128	38	60
	Numulite	8	6/128	152	240

Materials

	Item	Quantity	Rarity	Price	High Alch
	Volcanic ash	1	6/128	94	120
	Iron ore	1	4/128	46	10
	Tin ore	3	4/128	114	3
	Opal bolt tips	5	2/128	30	20
	Coal	2	2/128	258	54
	Copper ore	3	2/128	141	3

Oysters and Seaweed

	Item	Quantity	Rarity	Price	High Alch
	Oyster	2	12/128	194	240
	Oyster	1	9/128	97	120
	Seaweed	1	4/128	41	1
	Seaweed	2	4/128	82	2
	Empty oyster	1	3/128	Not sold	3
	Seaweed	5	2/128	205	5
	Edible seaweed	2	2/128	40	2
	Oyster pearl	1	1/128	71	67
	Empty oyster	3	1/128	Not sold	9

Other

	Item	Quantity	Rarity	Price	High Alch
	Fishing bait	10	2/128	40	10
	Calcite	1	1/128	34	18
	Pyrophosphite	1	1/128	108	18
	Seaweed spore	2	1/128	696	24
	Casket	1	1/128	1,002	30

Gem drop table

There is a 1/128 chance of rolling the gem drop table.

	Item	Quantity	Rarity	Price	High Alch
	Uncut sapphire	1	1/512; 1/260	472	15
	Uncut emerald	1	1/1,024; 1/520	747	30
	Uncut ruby	1	1/2,048; 1/1,040	1,320	60
	Nature talisman	1	1/5,461.33; 1/2,773.33	789	2
	Uncut diamond	1	1/8,192; 1/4,160	2,942	120
	Loop half of key	1	1/16,384; 1/8,320	9,855	60
	Tooth half of key	1	1/16,384; 1/8,320	10,058	60
	Rune javelin	5	1/16,384; 1/8,320	885	1,200
	Rune spear	1	1/262,144; 1/15,600	11,855	12,480
	Shield left half	1	1/524,288; 1/31,200	65,506	66,000
	Dragon spear	1	1/699,050.67; 1/41,600	37,460	37,440

Tertiary

	Item	Quantity	Rarity	Price	High Alch
	Clue scroll (easy)	1	1/128	Not sold	12
	Numulite	5–14	27/175	95-266	150-420
	Unidentified small fossil	1	3/350	Not sold	60
	Unidentified medium fossil	1	3/700	Not sold	120
	Unidentified large fossil	1	3/875	Not sold	180
	Unidentified rare fossil	1	3/3,500	Not sold	750

Changes

Date	Changes
12 July 2018 (update | poll)	The drop of seaweed spores was increased from 1 to 2.

Trivia

• The examine text is a reference to the Helix Fossil meme from Twitch Plays Pokémon.

References

Navbox JSON: {"groups":[{"type":"subgroup","title":"[[Museum Camp]]","contents":[[],{"text":"Fossil Storage","link":"Fossil Storage"},{"text":"Fossil Island General Store","link":"Fossil Island General Store"},{"text":"Charles","image":"Charles (Fossil Island) chathead.png","link":"Charles (Fossil Island)"},{"text":"David","image":"David (Fossil Island) chathead.png","link":"David (Fossil Island)"},{"text":"Dog","link":"Dog (Museum Camp)"},{"text":"Fossil Collector","image":"Fossil Collector chathead.png","link":"Fossil Collector"},{"text":"Jardric","image":"Jardric chathead.png","link":"Jardric"},{"text":"Peter","image":"Peter chathead.png","link":"Peter"},{"text":"John","image":"John chathead.png","link":"John"},{"text":"John","image":"Petrified Pete chathead.png","link":"John (Fossil Island)"},{"text":"Mattimeo","image":"Mattimeo chathead.png","link":"Mattimeo"},{"text":"Petrified Pete","image":"Petrified Pete chathead.png","link":"Petrified Pete"},{"text":"Shop keeper","image":"Shop keeper (Fossil Island) chathead.png","link":"Shop keeper (Fossil Island)"},{"text":"Fossil Island fossils","link":"Fossil Island fossils"},{"text":"Numulite","image":"Numulite.png","link":"Numulite"}]},{"type":"subgroup","title":"[[Mushroom Forest]]","contents":[[],{"text":"Mycelium pool","link":"Mycelium pool"},{"text":"Wyvern Cave","link":"Wyvern Cave"},{"text":"Ancient Zygomite","link":"Ancient Zygomite"},{"text":"Squirrel","image":"Squirrel (Fossil Island, brown) chathead.png","link":"Squirrel (Fossil Island)"},{"text":"Irene","image":"Irene chathead.png","link":"Irene"},{"text":"Herbiboar","link":"Herbiboar"},{"text":"Weve","image":"Weve chathead.png","link":"Weve"},{"text":"Ammonite Crab","link":"Ammonite Crab"},{"text":"Pyrophosphite","image":"Pyrophosphite.png","link":"Pyrophosphite"},{"text":"Calcite","image":"Calcite.png","link":"Calcite"}]},{"type":"subgroup","title":"[[Tar Swamp]]","contents":[[],{"text":"Sulliuscep","link":"Sulliuscep"},{"text":"Hoop Snake","link":"Hoop Snake"},{"text":"Charles Charlington","image":"Charles Charlington chathead.png","link":"Charles Charlington"},{"text":"Tar Monster","link":"Tar Monster"},{"text":"Deranged archaeologist","image":"Deranged archaeologist chathead.png","link":"Deranged archaeologist"},{"text":"Hoop snake","image":"Hoop snake.png","link":"Hoop snake"},{"text":"Sulliuscep cap","image":"Sulliuscep cap.png","link":"Sulliuscep cap"},{"text":"Uncooked mushroom pie","image":"Uncooked mushroom pie.png","link":"Uncooked mushroom pie"},{"text":"Mushroom pie","image":"Mushroom pie.png","link":"Mushroom pie"},{"text":"Breadcrumbs","image":"Breadcrumbs.png","link":"Breadcrumbs"},{"text":"Archaeologist's diary","image":"Archaeologist's diary.png","link":"Archaeologist's diary"}]},{"type":"subgroup","title":"[[Fossil Island Volcano]]","contents":[[],{"text":"Volcanic Mine","link":"Volcanic Mine"},{"text":"Ash pile","link":"Ash pile"},{"text":"Petrified Pete's Ore Shop","link":"Petrified Pete's Ore Shop"},{"text":"Lava beast","link":"Lava beast"},{"text":"Petrified Pete","image":"Petrified Pete chathead.png","link":"Petrified Pete"},{"text":"Maz","image":"Maz chathead.png","link":"Maz"},{"text":"Soda ash","image":"Soda ash.png","link":"Soda ash"},{"text":"Volcanic ash","image":"Volcanic ash.png","link":"Volcanic ash"},{"text":"Volcanic mine teleport","image":"Volcanic mine teleport.png","link":"Volcanic mine teleport"},{"text":"Calcite","image":"Calcite.png","link":"Calcite"},{"text":"Pyrophosphite","image":"Pyrophosphite.png","link":"Pyrophosphite"},{"text":"Iron ore fragment","image":"Iron ore fragment.png","link":"Iron ore fragment"},{"text":"Silver ore fragment","image":"Silver ore fragment.png","link":"Silver ore fragment"},{"text":"Coal fragment","image":"Coal fragment.png","link":"Coal fragment"},{"text":"Gold ore fragment","image":"Gold ore fragment.png","link":"Gold ore fragment"},{"text":"Mithril ore fragment","image":"Mithril ore fragment.png","link":"Mithril ore fragment"},{"text":"Adamantite ore fragment","image":"Adamantite ore fragment.png","link":"Adamantite ore fragment"},{"text":"Runite ore fragment","image":"Runite ore fragment.png","link":"Runite ore fragment"},{"text":"Large rock","image":"Large rock.png","link":"Large rock"},{"text":"Ash covered tome","image":"Ash covered tome.png","link":"Ash covered tome"},{"text":"Heat-proof vessel","image":"Heat-proof vessel.png","link":"Heat-proof vessel"}]},{"type":"subgroup","title":"[[Underwater]]","contents":[[],{"text":"Mairin's Market","link":"Mairin's Market"},{"text":"Mernia","image":"Mernia chathead.png","link":"Mernia"},{"text":"Mairin","image":"Mairin chathead.png","link":"Mairin"},{"text":"Ceto","image":"Ceto chathead.png","link":"Ceto"},{"text":"Annette","image":"Annette chathead.png","link":"Annette"},{"text":"Puffer Fish","link":"Puffer Fish"},{"text":"Harlequin Fish","link":"Fish (harlequin)"},{"text":"Paradise Fish","link":"Fish (paradise)"},{"text":"Red Fantail","link":"Fish (red fantail)"},{"text":"Fish shoal","link":"Fish shoal"},{"text":"Lobstrosity","link":"Lobstrosity"},{"text":"Mermaid's tear","image":"Mermaid's tear.png","link":"Mermaid's tear"},{"text":"Glistening tear","image":"Glistening tear.png","link":"Glistening tear"},{"text":"Pufferfish","image":"Pufferfish.png","link":"Pufferfish"},{"text":"Drift net","image":"Drift net.png","link":"Drift net"},{"text":"Merfolk trident","image":"Merfolk trident.png","link":"Merfolk trident"},{"text":"Seaweed spore","image":"Seaweed spore.png","link":"Seaweed spore"},{"text":"Bowl of fish","image":"Bowl of fish.png","link":"Bowl of fish"}]},{"type":"subgroup","title":"[[House on the Hill]]","contents":[[],{"text":"Mycelium Transportation System","link":"Mycelium Transportation System"},{"text":"Skeka","link":"Skeka"},{"text":"Ancient wyvern shield","image":"Ancient wyvern shield.png","link":"Ancient wyvern shield"},{"text":"Small enriched bone","image":"Small enriched bone.png","link":"Small enriched 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