Fossil specimen : SM A 17491 – Holotype
| Taxonomic Group |
Kingdom Animalia Phylum Hemichordata Class Graptolithina Order Dendroidea |
|---|---|
| Fossil Name | Ptilograptus cristula Hopkinson |
| Type Status | Holotype |
| Name History | Ptilograptus cristula Hopkinson: Holotype |
| Registration No. | A 17491 |
|---|---|
| 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 | Uchaf Road, Ramsey I., St. David's, Pembrokeshire, Wales |
| Grid Reference | Not available |
| Rock Unit | Lower 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 | Hopkinson 1875. Quarterly Journal of the Geological Society of London vol. xxxi (1): p.661 pl. xxxvi figs.2 a-b |
|---|
Available Images
High resolution photographs
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Steroscopic photographs
/CAMSM/P870960.jp2
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