Fossil specimen : SM A 17247 – Holotype
| Taxonomic Group |
Kingdom Animalia Phylum Hemichordata Class Graptolithina Order Graptoloidea |
|---|---|
| Fossil Name | Didymograptus stabilis Elles & Wood |
| Type Status | Holotype |
| Name History | Didymograptus stabilis Elles & Wood: Holotype Didymograptus indentus (Hall) |
| Registration No. | A 17247 |
|---|---|
| Collector | Hicks, Henry |
| Donor or Associated Person | Hopkinson, John (1844-1919) |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | Wales |
|---|---|
| Locality | Porth Haygog, Ramsey I., St. David's, Pembrokeshire, Wales |
| Grid Reference | Not available |
| Rock Unit | Upper Arenig |
|---|---|
| Biozone | D. bifidus |
| Geological Age |
Llanvirn Series (Ordovician Period) (458.4 – 465.5 Ma B.P.) [Closest ICS interval: Mid Ordovician Epoch ] |
| References | Elles & Wood 1901. A monograph of British Graptolites Palaeontographical Society Monographs (2): p.49 text-figs.31 a-b pl. iv fig.2 Hopkinson 1875. Quarterly Journal of the Geological Society of London vol. xxxi (1): p.647 pl. xxxiii figs.7 a-b |
|---|
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