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Fundamentals of Invertebrate PalaeontologyEchinoids

Fundamentals of Invertebrate Palaeontology: Echinoids [Of the five classes of echinoderm (Fig. 6.1), echinoids are the most diverse and well represented, from shallow waters to abyssal depths. The echinoderm account for 90 % of the biomass even at the depth of ocean trenches; echinoderm are bottom-dwellers except for a few swimming sea cucumbers. They are radially symmetrical in adults, and range from a few mm to more than a meter in diameter and live with their mouth downward-facing.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Fundamentals of Invertebrate PalaeontologyEchinoids

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Publisher
Springer India
Copyright
© Springer India 2017
ISBN
978-81-322-3656-6
Pages
175 –210
DOI
10.1007/978-81-322-3658-0_6
Publisher site
See Chapter on Publisher Site

Abstract

[Of the five classes of echinoderm (Fig. 6.1), echinoids are the most diverse and well represented, from shallow waters to abyssal depths. The echinoderm account for 90 % of the biomass even at the depth of ocean trenches; echinoderm are bottom-dwellers except for a few swimming sea cucumbers. They are radially symmetrical in adults, and range from a few mm to more than a meter in diameter and live with their mouth downward-facing.]

Published: Nov 25, 2016

Keywords: Brittle Star; Apical System; Genital Plate; Sand Dollar; Primary Spine

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