Fossil specimen : BGS GSM35586 – Lectotype
| Taxonomic Group |
Kingdom Animalia Phylum Arthropoda Class Trilobita Order Corynexochida |
|---|---|
| Fossil Name | Illaenus (Parillaenus) davisi Salter |
| Type Status | Lectotype |
| Name History | Illaenus (Parillaenus) davisi Salter Illaenus davisi Salter |
| Registration No. | GSM35586 |
|---|---|
| Collector | n/k |
| Donor or Associated Person | Name not available |
| Held By |
 British Geological Survey
|
| Comments | Sample also consists of a quantity of matrix. |
| Country | Wales |
|---|---|
| Locality | Rhiwlas, Bala, Merionethshire |
| Grid Reference | Not available |
| Rock Unit | Rhiwlas Limestone Member |
|---|---|
| Biozone | Phillipsinella parabola |
| Geological Age |
Ashgill Series (Ordovician Period) (443.8 – 449 Ma B.P.) [Closest ICS interval: Late Ordovician Epoch ] |
| References | Geol. Surv. Decades II pl.II,fig.1 Pal. Soc. 1864 pl. XXIX,fig. 11-13 Pal.Soc. 1854 pl.XXIX,fig. 11-13 Whittington,1965,Pal. Soc. Mon., "Ord. Tril.Bala",pt. III pl.XXI, fig. 1-3 |
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