Fossil specimen : SM A 16362 – Syntype
| Taxonomic Group |
Kingdom Animalia Phylum Arthropoda Class Trilobita Order Asaphida |
|---|---|
| Fossil Name | Trinucleus (Cryptolithus) |
| Type Status | Syntype |
| Name History | Trinucleus (Cryptolithus) Trinucleus concentricus var. arcuatus Smith: Syntype |
| Registration No. | A 16362 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Pomeroy Expedition |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | Northern Ireland |
|---|---|
| Locality | Little River, Tirnaskea, Pomeroy, County Tyrone, Northern Ireland |
| Grid Reference | Not available |
| Rock Unit | Desertcreat Group |
|---|---|
| Biozone | Not available |
| Geological Age |
Cautleyan Stage (Ordovician Period) – Pusgillian Stage (Ordovician Period) (447 – 449 Ma B.P.) [Closest ICS interval: Katian Age ] |
| References | Smith 1907. Proceedings of the Royal Irish Academy vol. xxiv b in Fearnsides, Elles and Smith (1): pp.119, 122 pl. viii fig.6 |
|---|
Available Images
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