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Species Pleurotoma subaequalis Sowerby 1846


Discussion / Comments:
Griffin & Nielsen (2008):
TYPE MATERIAL. Holotype: NHM- G26344. REMARKS. Pleurotoma subaequalis comes from the Pliocene of Isla Guafo (Sowerby 1846) as has been confirmed by Frassinetti (2000).
Synonym list:
Griffin & Nielsen (2008):
1846 Pleurotoma subaequalis Sowerby. - Sowerby : p.257 pl. 4; fig. 52
2000 Gemmula subaequalis Sowerby. - Frassinetti : 145-147 pl. 2; fig. 13-17
2008 Gemmula (Ptychosyrinx) subaequalis Sowerby. - Griffin & Nielsen : pl. 23; fig. 18-19
Was used in synonym list of:
Gemmula (Ptychosyrinx) subaequalis Sowerby 1846
Gemmula (Ptychosyrinx) pseudosubaequalis
References:

Sowerby,G.B.. (1846):
Descriptions of Tertiary fossil shells from South America..
In: Geological observations on South America. Eds: Darwin, C.. p. 249-264

Frassinetti,D.. (2000):
Moluscos del plioceno superior marino de Isla Guafo, sur de Chile. Parte II: gastropoda . Boletín del Museo nacional de historia natural, n°spécial:, Santiago Vol. 49 p. 131-161

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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