Relating to or belonging to the group of barrel-shaped, transparent marine animals called copelata or appendicularians.
From copelata combined with the adjectival suffix -ate. Used in scientific and zoological contexts to describe characteristics or membership in this marine class.
The copelate body plan—clear and barrel-shaped—is so efficient for ocean living that these creatures haven't needed to evolve much in millions of years, making them 'living fossils' of marine design.
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