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ophiurids

ophiurids Sentence Examples

  • Turning to fossil Asteroidea, we find the earlier ophiurids scarcely distinguishable from the asterids, while in the alternation of the ambulacrals, which undoubtedly correspond to the flooring-plates of Edrioaster, both groups approach the Pelmatozoan type.

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  • There is no difficulty in deducing the highly differentiated asterids and ophiurids of a later day from these simpler types.

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  • 3, D) and ophiurids (fig.

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  • Turning to fossil Asteroidea, we find the earlier ophiurids scarcely distinguishable from the asterids, while in the alternation of the ambulacrals, which undoubtedly correspond to the flooring-plates of Edrioaster, both groups approach the Pelmatozoan type.

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  • There is no difficulty in deducing the highly differentiated asterids and ophiurids of a later day from these simpler types.

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