The interrelationships of the echinoderm classes: morphological and molecular evidence
Littlewood, D.T.J.; Smith, A.B.; Clough, K.A.; Emson, R.H. (1997). The interrelationships of the echinoderm classes: morphological and molecular evidence. Biol. J. Linn. Soc. 61: 409-438
In: Biological Journal of the Linnean Society. Academic Press: London; New York. ISSN 0024-4066; e-ISSN 1095-8312, more
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