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Cardium platense d'Orbigny 1842 from: Griffin, M..Nielsen, S.N.. (2008): A revision of the type specimens of Tertiary molluscs from Chile and Argentina described by d’Orbigny (1842), Sowerby (1846), and Hupé (1854) . Journal of Systematic Palaeontology
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Species Cardium platense d'Orbigny 1842



Discussion / Comments:
Griffin & Nielsen (2008):
TYPE MATERIAL. A search through the collections at the MNHN in Paris was unsuccessful in locating the sole specimen that d’Orbigny illustrated. He probably had additional syntypes, but – as in the case of the illustrated one – none of them was found. REMARKS. D’Orbigny (1842) mentioned the fact that this species is rarely found with its shell. This suggests that he had available more than one specimen. The material described more recently by del Río as Dinocardium novus (del Río 1994, p. 106-107, pl. 1, fig. 5) from Valdés Peninsula is very well preserved and generally with most of the shell. This group of bivalves is in need of revision in order to clarify its taxonomic relationship and nomenclature, but the species introduced by del Río seems to be a synonym of d’Orbigny’s large species, and the features she stated as differentiating the two taxa can be attributed to size and normal intraspecific variation.
Synonym list:
Griffin & Nielsen (2008):
1842 Cardium platense d'Orbigny. - d'Orbigny : p.120 pl. 14; fig. 12-14
1893 Cardium bravardi Philippi. - Philippi : p.10 pl. 1; fig. 11
1901 Cardium magnum Born. - Borchert : 34-35
1994 Dinocardium n sp. novus del Rio. - del Rio : 106-107 pl. 1; fig. 5
2000 Dinocardium novus del Rio. - del Rio : fig. 11.9
2008 Dinocardium platense d'Orbigny. - Griffin & Nielsen : pl. 12; fig. 8
References:

d'Orbigny,A. (1842):
Voyage dans l'Amerique méridionale.
In: Paléontologie Vol. 3(4) p. 187

Philippi,R.A.. (1893):
Fósiles terciarios de la República Argentina . Anales del Museo Nacional de Chile p. 11

Borchert,A.. (1901):
Molluskenfauna und das Alter der Paraná-Stufe . Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, Beilage Vol. 14 p. 171-245

del Rio,C.J.. (1994):
Middle Miocene Bivalves of the Puerto Madryn Formation, Valdés Peninsule, Chubut Province, Argentina. Part II : Lucinidae - Pholadidae . Palaeontographica A Vol. 231 p. 93-132

del Rio,C.J.. (2000):
Malacofauna de las Formaciones Paraná y Puerto Madryn (Mioceno marino, Argentina): su origen, composición y significado bioestratigráfico.
In: El Neógeno de Argentina, Serie Correlación Geológica Vol. 14 Eds: Aceñolaza, F.G..Herbst, R.. p. 77-101

Griffin,M.. and Nielsen,S.N.. (2008):
A revision of the type specimens of Tertiary molluscs from Chile and Argentina described by d’Orbigny (1842), Sowerby (1846), and Hupé (1854) . Journal of Systematic Palaeontology

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