Fossil specimen : BGS GSM18991 – Lectotype
| Taxonomic Group |
Kingdom Animalia Phylum Arthropoda Class Trilobita Order Corynexochida |
|---|---|
| Fossil Name | Stygina latifrons (Portlock) |
| Type Status | Lectotype |
| Name History | Stygina latifrons (Portlock) |
| Registration No. | GSM18991 |
|---|---|
| Collector | Portlock |
| Donor or Associated Person | Name not available |
| Held By |
 British Geological Survey
|
| Comments |
| Country | Northern Ireland |
|---|---|
| Locality | Desertcreat, Co. Tyrone |
| Grid Reference | Not available |
| Rock Unit | Ashgill Formation |
|---|---|
| Biozone | Not available |
| Geological Age |
Hirnantian Age (Ordovician Period) – Rawtheyan Stage (Ordovician Period) (443.8 – 447 Ma B.P.) |
| References | HB. Whittington, Jour. Palaeont. vol.24, no. 5 1950 ibid pp. 547-549 pl. 72 fig.1-3 Ingham 1970,Pal. Soc. Mon. pg. 16 Portlock, Geol. Rep. Londonderry etc. ,1843 as Asaphus latifrons ibid. pg. 292 pl. 7,fig. 6a Salter," Mon. Brit. Trilobites " Pal. Soc. 1866 ibid. pg. 172 pl. XVIII,fig. 7,pars 10 Salter,Dec. XI, Mem. Geol. Surv. ,1864 pl. 2,fig. 1,2 |
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