| Registration No. : |
GSM 10183 . |
Type : |
Not Designated a Type |
| Identifications : |
| Not Entered: |
Arthropoda: Trilobita |
Niobina davidis Lake |
| Locality : |
Portmadoc, Caernarvonshire |
| Grid Reference : |
Not available
|
Country : |
England & Wales |
| 1:50K map : |
|
|
| Chronostratigraphy : |
Tremadoc Series
— Tremadoc Series
|
| Lithostratigraphy : |
TREMADOC ROCKS (UNDIFFERENTIATED) |
| Collector / Donor : |
Available from curator
|
| References : |
| Salter 1866 Cambrian Trilobites Mon. Palaeont. Soc. 133 |
| Salter 1866 Mem. Geol. Surv. 3 |
| Wyatt-Edgell 1867 Geol. Mag. 4 15 |
| Lake 1946 British Cambrian Trilobites Mon. Palaeont. Soc. |
| Reed 1931 Ann Mag Nat Hist 7 10 |
