. Bulletin. Natural history; Natuurlijke historie. 54 BROWNSPORT FORMATION DiscxrssiON. Roemer called this species Strophomerm pecten after the Linnean species Anomia pecten although he noted that the American species was smaller and the costellae coarser. He also thought that Strophomena suhplana (Conrad) was a synonym. Foerste, however, believed the Brownsport form to be distinct from S. pecten and also noted several differences between it and S. suhplana. He proposed roemeri for this species, first referring it to the genus Ortlwthetes and later changing it to Schuchertella. Bassler (1915,
. Bulletin. Natural history; Natuurlijke historie. 54 BROWNSPORT FORMATION DiscxrssiON. Roemer called this species Strophomerm pecten after the Linnean species Anomia pecten although he noted that the American species was smaller and the costellae coarser. He also thought that Strophomena suhplana (Conrad) was a synonym. Foerste, however, believed the Brownsport form to be distinct from S. pecten and also noted several differences between it and S. suhplana. He proposed roemeri for this species, first referring it to the genus Ortlwthetes and later changing it to Schuchertella. Bassler (1915, p. 1150) erroneously credited the species pecten to Roemer and thought that the specimens studied by Roemer and Foerste constituted two distinct species. The writer believes Foerste was cor- rect in thinking that the two were identical. The specimens collected agree in outline, size and ornamentation with those figured by Roemer and Foerste. Roemer's figure of the lateral profile (1860, pi. 5, fig. 4b) shows a reversal of curvature which is probably due to crushing of the specimen. The shell wall of this species is thin and commonly shows distortion. Neither Roemer nor Foerste mentions the dorsal sulcus, but this is not conspicu- ous and is only displayed in well preserved specimens. Distribution. Silurian, Brownsport formation of western Tennessee. Not a com- mon species; collections from the following localities: 4-(14), (44); 18-(2), (13); 25-(4); 33-(100); 40-(123); 49-(109). Found throughout most of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Peabody Museum of Natural History. New Haven : The Museum
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