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paleechinoidea

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1. 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. Source: opted
2. 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.] Source: webster
3. 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.] Source: adambom

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called extinct found order pal paleozoic plates rocks rows sea they twenty urchins vertical echini echinoidea written

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pale yellow pale-colored pale-faced pale-hued palea paleaceous

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