Fossil specimen : SM A 17309 – Syntype
| Taxonomic Group |
Kingdom Animalia Phylum Hemichordata Class Graptolithina Order Graptoloidea |
|---|---|
| Fossil Name | Tetragraptus serra (Brongniart) |
| Type Status | Syntype |
| Name History | Tetragraptus serra (Brongniart) Tetragraptus halli Hopkinson: Syntype |
| Registration No. | A 17309 |
|---|---|
| Collector | Hopkinson, J. |
| Donor or Associated Person | Name not available |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments | part and counterpart |
| Country | Wales |
|---|---|
| Locality | Whitesand Bay, St. David's, Pembrokeshire, Wales |
| Grid Reference | Not available |
| Rock Unit | Arenig |
|---|---|
| Biozone | Not available |
| Geological Age |
Arenig Series (Ordovician Period) (465.5 – 477.7 Ma B.P.) [Closest ICS interval: Mid Ordovician Epoch – Early Ordovician Epoch ] |
| References | Elles & Wood 1902. A monograph of British Graptolites Palaeontographical Society Monographs vol. 100 (2): p.65 pl. vi fig.4 d Hopkinson 1875. Quarterly Journal of the Geological Society of London vol. xxxi (1): p.651 pl. xxxiii fig.11 b |
|---|
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