Definition of Palaeechinoidea. Meaning of Palaeechinoidea. Synonyms of Palaeechinoidea
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Definition of Palaeechinoidea
PalaeechinoideaPaleechinoidea Pa`le*["e]ch`i*noi"de*a, n. pl. [NL. See
Paleo-, and Echinoidea.] (Zo["o]l.)
An extinct order of sea urchins found in the Paleozoic rocks.
They had more than twenty vertical rows of plates. Called
also Pal[ae]echini. [Written also Pal[ae]echinoidea.]
Meaning of Palaeechinoidea from wikipedia
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