TABLE 1. Dimensions shown in measurement of specimens of Norestheria franconica n. sp. Collection numbers in the left column refer to the collection of the Museum Terra Triassica (SMTE). Abbreviations: L, total valve length in millimetres; H, total height of valve in millimetres; H/L, ratio height/length; 1, length of dorsal margin; 1/L, ratio length of dorsal margin vs. total length; GL, number of growth lines; AMmax/H, ratio of anterior margin height vs. total height of valve; PMmax/H, ratio of posterior margin height vs. total height of valve; VMmax/L, ratio of ventral ventral margin vs. maximum valve length.
| L | H | H/L | l | l/L | GL | AMmax/H | PMmax/H | VMmax/L | |
| 5930-1-198a | 6.72 | 4.92 | 0.73 | 3.11 | 0.46 | >18 | 0.48 | 0.51 | 0.50 |
| 5930-4-673a | 5.17 | 3.3 | 0.64 | -- | -- | >11 | 0.45 | 0.57 | 0.48 |
| 6030-1-218I | 6.26 | 4.58 | 0.73 | 3.14 | 0.50 | >12 | 0.47 | 0.55 | 0.50 |
| 6030-1-254a | 6.65 | 4.4 | 0.66 | 3.0 | 0.45 | >17 | 0.43 | 0.63 | 0.53 |
| 6030-1-255a | 5.3 | ||||||||
| 6030-1-390a | 6.9 | 5.0 | 0.72 | 3.25 | 0.47 | >15 | 0.47 | 0.59 | 0.50 |
| 6030-1-500a | 5.0 | 3.75 | 0.75 | >25 | |||||
| 6030-1-512a | 6.25 | -- | -- | -- | -- | ||||
| 6030-1-517a | 4.,6 | 3.1 | 0.68 | >10 | |||||
| 6030-1-547 | 8.0 | 5.25 | 0.66 | >23 | |||||
| 6030-1-623 | 6.29 | 4.86 | 0.77 | 3.35 | 0.53 | >15 | 0.42 | 0.56 | 0.50 |
| 6030-1-625 | 6.5 | 4.0 | 0.73 | >11 | |||||
| 6030-1-626 | 8.0 | 5.4 | 0.68 | 3.98 | 0.49 | >24 | 0.46 | 0.56 | 0.49 |
