Table 1.
Measurements of total specimen length, the length of the basal extension and the relative proportion of the specimen this area comprises
| Specimen | Total length (mm) | Basal extension (mm) | Length of the basal extension as a proportion of total organism length (%) |
|---|---|---|---|
| GSM 105978 | 118 | 20.84 | 18 |
| GSM 106040 | >111.31 | 11.61 | N/A |
| GSM 105966 | 98.89 | 0 | 0 |
| Holotype | >220.09 | 26.61 | N/A |
| GSM 106078 | 131.41 | 26.26 | 20 |
| GSM 105989 | 75.66 | 8.86 | 12 |
| GSM 105979 | 100.97 | 3.40 | 3 |
| GSM 105997 | >173.90 | 26.51 | N/A |
| GSM 105972 | 120.24 | 9.64 | 8 |
| GSM 106084 | 25.7 | 0 | 0 |
‘N/A’ represents cases where the total length data are not precise, and therefore proportions cannot be accurately determined. Specimens from Bed B, Charnwood Forest, UK; housed at BGS.