SYSTEMATICS AND PHYLOGENY OF THE GENUS AMEGHINOMYA IHERING, 1907 (BIVALVIA: CHIONINAE) FROM THE CENOZOIC OF ARGENTINA AND CHILE

Authors

  • Damián E. Pérez División Paleoinvertebrados - Museo Argentino de Ciencias Naturales
  • Claudia J. del Río División Paleoinvertebrados - Museo Argentino de Ciencias Naturales
  • Sven N. Nielsen Institut für Geowissenschaften, Christian-Albrechts-Universität zu Kiel, Ludewig-Meyn-Str

Keywords:

Ameghinomya, Protothaca, Chioninae, Veneridae, Filogenia, Argentina, Chile, Cenozoico

Abstract

A systematic revision of the genus Ameghinomya Ihering, 1907 is conducted and its phylogenetic relationships are explored through a cladistic analysis based on morphological characters of extant and fossil species. The resulting strict consensus shows one clade consisting of Protothaca Dall and Austrovenus Finlay and another one encompassing the species of Ameghinomya, the latter being monophyletic. Ornamentation of the valves is shown to have systematic value which until now had not been appropriately explored. Based on the results of the phylogenetic and systematic analysis, it is proposed to assign the species Venus antiqua King, 1832 (extant, Southwestern Atlantic) and Venus chiloensis Philippi, 1887 (Miocene, Chile) to the genus Ameghinomya. Ameghinomya camachoi sp. nov. is described from the Carmen Silva Formation (Miocene, Isla Grande de Tierra del Fuego, Argentina)

Author Biographies

  • Damián E. Pérez, División Paleoinvertebrados - Museo Argentino de Ciencias Naturales
    Becario Post-GradoTipo I - Conicet
  • Claudia J. del Río, División Paleoinvertebrados - Museo Argentino de Ciencias Naturales
    Curadora Colección Nacional de Paleoinvertebrados Investigador Independiente Conicet

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Published

2013-07-06

Issue

Vol. 50 No. 3 (2013)

Section

Articles

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How to Cite

SYSTEMATICS AND PHYLOGENY OF THE GENUS AMEGHINOMYA IHERING, 1907 (BIVALVIA: CHIONINAE) FROM THE CENOZOIC OF ARGENTINA AND CHILE. (2013). Ameghiniana, 50(3), 354 – 374. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/594

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