Generation of completely detached fossils when using a customized world type with following presets:

{"coordinateScale":840.0,"heightScale":840.0,"lowerLimitScale":36.0,"upperLimitScale":156.0,"depthNoiseScaleX":204.0,"depthNoiseScaleZ":204.0,"depthNoiseScaleExponent":1.2,"mainNoiseScaleX":84.0,"mainNoiseScaleY":132.0,"mainNoiseScaleZ":84.0,"baseSize":8.0,"stretchY":11.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":64,"useCaves":true,"useDungeons":true,"dungeonChance":36,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":5,"useLavaLakes":true,"lavaLakeChance":75,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":4,"riverSize":5,"dirtSize":32,"dirtCount":20,"dirtMinHeight":48,"dirtMaxHeight":216,"gravelSize":24,"gravelCount":16,"gravelMinHeight":24,"gravelMaxHeight":240,"graniteSize":32,"graniteCount":20,"graniteMinHeight":0,"graniteMaxHeight":240,"dioriteSize":32,"dioriteCount":20,"dioriteMinHeight":0,"dioriteMaxHeight":240,"andesiteSize":32,"andesiteCount":20,"andesiteMinHeight":0,"andesiteMaxHeight":240,"coalSize":18,"coalCount":40,"coalMinHeight":12,"coalMaxHeight":252,"ironSize":8,"ironCount":40,"ironMinHeight":12,"ironMaxHeight":252,"goldSize":8,"goldCount":4,"goldMinHeight":12,"goldMaxHeight":36,"redstoneSize":8,"redstoneCount":16,"redstoneMinHeight":12,"redstoneMaxHeight":36,"diamondSize":6,"diamondCount":2,"diamondMinHeight":0,"diamondMaxHeight":24,"lapisSize":8,"lapisCount":4,"lapisCenterHeight":216,"lapisSpread":24}

Used seed: -4407640656897668703 with coordinates in screenshots to verify.

I do not know whether this occurs using the default world type generation. I suspect either not or only in extreme circumstances. In more extreme world types, I suspect it will be the same. I did not see other structures being generated completely detached despite the non default world type.

I suspect it to be non intended.