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In some senses, cryptozoic is marked as archaic. Watch for register when choosing this word.
cryptozoic
adj 3name 1
Definitions
name
1
An eon or other time period before the Cambrian, when the fossils of hard-shelled animals first appeared in the geological record.
adj
1
Living in a cavity or small cave.
2
Hidden (especially in the soil); not easily visible.
The arthropods of the forest biome can be divided into two ecological groups: the cryptozoic inhabitants of the soil and leaf litter, and the terrestrial and arboreal forms that live in more exposed localities.
3
Relating to a cryptozoite.
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