Fossil specimen : SM A 29997 – Holotype
| Taxonomic Group |
Kingdom Animalia Phylum Mollusca Class Cephalopoda Order Orthocerida |
|---|---|
| Fossil Name | Orthoceras fluctuatum Salter |
| Type Status | Holotype |
| Name History | Orthoceras fluctuatum Salter Orthoceras fluctuatum Salter Orthoceras recticinctum Blake Orthoceras fluctuatum Salter: Holotype Orthoceras subundulatum Portlock |
| Registration No. | A 29997 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Name not available |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | Wales |
|---|---|
| Locality | Wellfield, Builth, Radnorshire? |
| Grid Reference | Not available |
| Rock Unit | Llandeilo Bed |
|---|---|
| Biozone | Not available |
| Geological Age |
Caradoc Series (Ordovician Period) – Abereiddian Stage (Ordovician Period) (449 – 465.5 Ma B.P.) [Closest ICS interval: Late Ordovician Epoch – Darriwilian Age ] |
| References | Blake, J.F. 1882. A monograph of the British fossil Cephalopoda vol. i Palaeontographical Society Monographs (3): p.122 McCoy 1852 a. A synopsis of the classification of the British Palaeozoic rocks with a systematic description of the British Palaeozoic fossils Palaeontographical Society Monographs (1): p.317 Reed, F.R.C. 1902 a. Geological Magazine n.s. dec. iv, vol. ix (5): p.145 pl. vii fig.2 Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (2): p.37 Salter's no. a 611 Woods, H. 1891. Catalogue of the Type Fossils in the Woodwardian Museum, Cambridge. Henry Woods with preface by T. McKenny Hughes CUP. 180+xiv SPL: II. 16 (4): p.129 |
|---|
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