Chapter

Monoplacophora (Tryblidia)

Gerhard Haszprunar

in Phylogeny and Evolution of the Mollusca

Published by University of California Press

Published in print March 2008 | ISBN: 9780520250925
Published online March 2012 | e-ISBN: 9780520933705 | DOI: http://dx.doi.org/10.1525/california/9780520250925.003.0005
Monoplacophora (Tryblidia)

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This chapter examines the phylogeny and evolution of the molluscan class Monoplacophora. It highlights the likely multiple paraphylyl or even polyphlyl of the fossils grouped as monoplacophorans and describes the systematic position of this class. It suggests that the main controversy around the Tryblidia centers around their serial multiplication of several organ systems and highlights the lack of ecological, fine-structural, immunocytochemical, ontogenetic data on Tryblidia.

Keywords: Monoplacophora; phylogeny; evolution; fossils; systematic position; Tryblidia; organ systems

Chapter.  4130 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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