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Callochiton monteleonensis n. sp., first record of Polyplacophora (Mollusca) from the Neogene of Argentina

Published online by Cambridge University Press:  14 July 2015

Diego Urteaga ,
Miguel Griffin  and
Guido Pastorino
Diego Urteaga
Affiliation:
1Museo Argentino de Ciencias Naturales, Av. Angel Gallardo 470 3° lab. 80, C1405DJR, Buenos Aires, Argentina, ,
Miguel Griffin
Affiliation:
2Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina,
Guido Pastorino
Affiliation:
1Museo Argentino de Ciencias Naturales, Av. Angel Gallardo 470 3° lab. 80, C1405DJR, Buenos Aires, Argentina, ,
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Abstract

A new species of chiton is described from early Miocene deposits of the Monte León Formation, in Santa Cruz Province, Argentina. Callochiton monteleonensis n. sp. clearly differs from known fossil and Recent species of the southwestern Atlantic because the central area of its intermediate valves has a stepped appearance, in which each step is marked by a longitudinal rib. It is similar to Callochiton kapitiensis Mestayer, 1926, a Recent species from New Zealand. Biogeographic implications are discussed. This is the first record of a polyplacophoran from Neogene deposits of Argentina.

Type
Research Article
Information
Journal of Paleontology , Volume 85 , Issue 6 , November 2011 , pp. 1181 - 1187
Copyright
Copyright © The Paleontological Society 

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