Tetraphalerella sp. (external) and T. cf. T. musculosa (internal)
photo from Pope, 1982
Scale bar is 1 cm
Very similar to Strophomena. On weathered or etched specimens, pseudopunctae in Tetraphalerella can be seen to be arranged in radial rows, whereas they are irregularly distributed in Strophomena.
Tetraphalerella neglecta (James, 1881)
Occurrence: Waynesville, Whitewater
Reference: Dalvé, 1948
Originally Strophomena neglecta
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