"Is there a definitive list of biomes and what spawns in them?"

#PokemonGO: With the Valentines event, we've been able to identify a clear biome split in our town.We have a train line which runs through the whole town, north of that railway line, is quite clearly an electric biome, it's where 99% of our Porygon's seem to spawn. Upon further analysis from others, we only have reports of the classic other electric biome Mon (Magnemite, Magneton, Voltorb, Electrode, Lapras) spawning only north of the tracks.However, we are struggling to identify the biome to the south of the tracks. Everything we find here seems to also spawn in the north of the town, so a list maybe would help to identify it.Thanks in advance. via /r/TheSilphRoad http://ift.tt/2kRrzvA