Parvamussium alabamensis (Aldrich, 1886)
ALDRICH, T. H. 1886. Preliminary report on the Tertiary fossils of Alabama and Mississippi. Geological Survey of Alabama, Bulletin, 1 (1): 15-60, pls 1-6 [p. 40, pl. 4, fig. 8]
1886 Pecten (Pleuronectia) alabamensis Aldrich, 1886
T. H. Aldrich, 1886, plate 4.
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«Shell small, suborbicular; upper valve covered with equidistant concentric lines which run over upon the anterior ear; a few raised radial lines upon the center and anterior side; ears small; right valve nearly smooth; within both valves eight raised prominent rounded ribs, becoming obsolete as they approach the beak.
Locality.— Matthews' Landing, Ala. Seems to unite Pleuroiiectia and Pecten. One specimen shows concentric strise and ribs in the younger part of the shell, these becoming obsolete toward the ventral margin. The enlarged figure gives a view of the interior.» TRUMAN HEMINWAY ALDRICH, 1886
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«During the Cenozoic, Parvamussium was present in Europe (see records and bibliography in SCHULTZ 2001), eastern Asia (MASUDA 1962), and western North America where at least five Paleocene to Pleistocene species have been described (see MOORE 1984 for bibliography). In eastern North America, P. alabamense (ALDRICH, 1886) was recorded from the Matthews Landing Member, Porters Creek Formation, Midway Group (Paleocene) of Alabama, Arkansas and Texas by GARDNER (1935: 144) and PALMER & BRANN (1965: 28; as “Amusium (Propeamussium) alabamense”).»
DEL RÍO, C. J., A. BEU & S. A. MARTÍNEZ. 2008. The pectinoidean genera Delectopecten Stewart, 1930 and Parvamussium Sacco, 1897 in the Danian of Northern Patagonia, Argentina. Neues Jahrbuch für Geologie und Paläontologie -Abhandlungen, 249: 281-295, figs. 1-4. [p. 284]
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