Fossil specimen : SM A 19524 – Undifferentiated Type
| Taxonomic Group |
Kingdom Animalia Phylum Hemichordata Class Graptolithina Order - |
|---|---|
| Fossil Name | Dicranograptus nicholsoni Hopkinson |
| Type Status | Undifferentiated Type |
| Name History | Dicranograptus nicholsoni Hopkinson Dicranograptus nicholsoni Hopkinson: Undifferentiated Type Dicranograptus nicholsoni Hopkinson: Syntype |
| Registration No. | A 19524 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Hopkinson, John (1844-1919) |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | Scotland |
|---|---|
| Locality | Laggan Burn, Ayrshire, Dobb's Linn, Moffat, Dumfriesshire, Scotland |
| Grid Reference | Not available |
| Rock Unit | Hartfell Shale |
|---|---|
| Biozone | Not available |
| Geological Age |
Ashgill Series (Ordovician Period) – Caradoc Series (Ordovician Period) (443.8 – 458.4 Ma B.P.) [Closest ICS interval: Late Ordovician Epoch ] |
| References | Bulman, O.M.B. 1945. A monograph of the Caradoc (Balclatchie) graptolites from limestones in the Laggan Burn, Ayrshire Palaeontographical Society Monographs (3): p.41 text-fig.18 c Elles & Wood 1904. A monograph of British Graptolites Palaeontographical Society Monographs (2): p.171 pl. xxv fig.1 f Hopkinson 1870. Geological Magazine vol. vii (1): p.357 pl. xvi figs.3 a-b |
|---|
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