SEE Figure 21-1
Difflugia
urens Patterson et al. 1985
Difflugia urens PATTERSON et al.
1985, p. 130, pl.
3, figs. 5-14
Specimen from Midway Lake, Nova Scotia.
| Key Position: 21 | Back to (20b) |
| 21 a.
Aperture very small with expanded flanged collar of
variable width. SEE Figure 21-1 |
21 b. Aperture wide, collar of variable shapes and sizes. |
| FIGURE 21-1
Difflugia
urens Patterson et al. 1985
|
|