Fossil specimen : SM A 4695 – Holotype
| Taxonomic Group |
Kingdom Animalia Phylum Hemichordata Class Graptolithina Order - |
|---|---|
| Fossil Name | Callograptus hopkinsoni Bulman |
| Type Status | Holotype |
| Name History | Callograptus hopkinsoni Bulman: Holotype Callograptus salteri Hall |
| Registration No. | A 4695 |
|---|---|
| Collector | Hopkinson, J. |
| Donor or Associated Person | Name not available |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments | part and counterpart : (parts a-b) |
| Country | Wales |
|---|---|
| Locality | Whitesand Bay (slate quarry), Pembrokeshire, Wales |
| Grid Reference | Not available |
| Rock Unit | Middle Arenig |
|---|---|
| Biozone | D. extensus (prob upper part) |
| Geological Age |
Arenig Series (Ordovician Period) (465.5 – 477.7 Ma B.P.) [Closest ICS interval: Mid Ordovician Epoch – Early Ordovician Epoch ] |
| References | Bulman, O.M.B. 1934. A monograph of British dendroid Graptolites Palaeontographical Society Monographs (2): p.84 text-fig. 41 b pl. viii fig.1 Hopkinson & Lapworth 1875. Quarterly Journal of the Geological Society of London vol. xxxi (1): p.667 pl. xxxvi fig.10 |
|---|
Available Images
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