Chapter

Relationships of Higher Molluscan Taxa

Gerhard Haszprunar, Christoffer Schande and Kenneth M. Halanych

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/9780520250925.003.0002
Relationships of Higher Molluscan Taxa

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This chapter investigates the relationships among the members of the higher taxa of phylum Mollusca. It explains the systematic position of the Mollusca and evaluates the application of a hypothetical ancestral mollusc (HAM) in validating any hypothesis on molluscan origin and evolution. It discusses evidence from fossils and stresses the need to sample molluscan lineages more densely to overcome problems of limited phylogenetic signal from some genes.

Keywords: Mollusca; higher taxa; HAM; molluscan origin; evolution; fossils; molluscan lineages; phylogenetic signal

Chapter.  7109 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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