TABLE 1. Diagnostic value of the elements of MNHNL LM266 if taken individually.
| Anatomical element | Individual diagnostic value |
| Snout fragment (premaxillae, dentaries, splenials, teeth) | Leptonectidae |
| Possible surangular | Vertebrata |
| Centra (one dorsal and one posterior caudal) | Neoichthyosauria |
| Ribs (and possible gastralia) | Neoichthyosauria |