Shell Microstructure of the Basal Pectinid Pleuronectites laevigatus: Implications for Pectinoid Phylogeny (Mollusca: Bivalvia: Pteriomorphia)

Joseph G. Carter; Michael Hautmann

doi:10.1666/10-094.1

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Joseph G. Carter,¹ Michael Hautmann²

¹Department of Geological Sciences, University of North Carolina at Chapel Hill, NC 27599-3315, USA ⟨ ⟩ treatise@unc.edu
²Paläontologisches Institut und Museum, Karl Schmid-Strasse 4, CH-8006 Zürich, Switzerland ⟨ ⟩ michael.hautmann@pim.uzh.ch

Abstract

New shell microstructure data for the Triassic pectinid Pleuronectites reinforce shell morphological data suggesting that its family Pectinidae was derived from the superfamily Aviculopectinoidea and not from the Pernopectinidae-Entolioidesidae-Entoliidae clade. This would make the superfamily Pectinoidea, as defined by recent authors, polyphyletic. This would also imply that alivincular-alate ligaments evolved independently in the Pernopectinidae-Entolioidesidae-Entolidae and Pectinidae clades.

Citation Download Citation

Joseph G. Carter and Michael Hautmann "Shell Microstructure of the Basal Pectinid Pleuronectites laevigatus: Implications for Pectinoid Phylogeny (Mollusca: Bivalvia: Pteriomorphia)," Journal of Paleontology 85(3), 464-467, (1 May 2011). https://doi.org/10.1666/10-094.1

Accepted: 1 November 2010; Published: 1 May 2011

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