Fossil specimen : SM A 17298 – Syntype
| Taxonomic Group |
Kingdom Animalia Phylum Hemichordata Class Graptolithina Order Graptoloidea |
|---|---|
| Fossil Name | Tetragraptus amii Elles & Wood ex Lapworth ms. |
| Type Status | Syntype |
| Name History | Tetragraptus amii Elles & Wood ex Lapworth ms.: Syntype Tetragraptus serra (Brongniart) |
| Registration No. | A 17298 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Hopkinson, John (1844-1919) |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | Wales |
|---|---|
| Locality | Whitsand Bay, St. David's, Wales |
| Grid Reference | Not available |
| Rock Unit | Middle Arenig |
|---|---|
| Biozone | D. extensus (zone 3) |
| 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.60 pl. v fig.4 c Hopkinson 1875. Quarterly Journal of the Geological Society of London vol. xxxi (1): p.650 pl. xxxiii fig.10 |
|---|
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