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Thesaurus: paleechinoidea
An extinct order of sea urchins found in the Paleozoic rocks. They had more than twenty vertical rows of plates. Called also Palaeechini.
Related headwords
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Definitions
- n. pl. An extinct order of sea urchins found in the Paleozoic rocks. They had more than twenty vertical rows of plates. Called also Palaeechini.
- An extinct order of sea urchins found in the Paleozoic rocks. They had more than twenty vertical rows of plates. Called also Palæechini. [Written also Palæechinoidea.]
- An extinct order of sea urchins found in the Paleozoic rocks.They had more than twenty vertical rows of plates. Called alsoPalæechini. [Written also Palæechinoidea.]