Words to Describe subzone

How subzone often is described ("________ subzone")

• third
• regional
• upper
• polar
• mediterranean
• highest
• central
• western
• lower
• norite
• owenites
• humid
• ammonite
• late
• higher
• south
• lowermost
• abyssal
• eastern
• second
• northern
• arctic
• lowest
• dry
• boreal
• arid
• tundra
• separate
• sahelian
• topographic
• first
• taiga
• underlying
• subarctic
• typical
• steppe
• middle
• uppermost
• temperate
• arabian
• early
• dark
• southern
• previous