Graeff and Kociolek in Graeff et al. 2012 Category: Symmetrical biraphid
BASIONYM: Frustulia rexii
SEM scalebar = 1 µm
Site ID: JPK 5807
Site Name: Bryant's Bog
Latitude: 45.566822
Longitude: -84.711802
Caption: Abruptly widening longitudinal ribs near internal apices.
Contributor: Carrie Graeff - March 2011