Fossil specimen : SM A 16691 – Lectotype
| Taxonomic Group |
Kingdom Animalia Phylum Arthropoda Class Trilobita Order Asaphida |
|---|---|
| Fossil Name | Homalopteon radians (M'coy), 1849 |
| Type Status | Lectotype |
| Name History | Homalopteon radians (M'coy), 1849: Lectotype Barrandia radians (McCoy): Holotype Barrandia (Homalopteon) radians (McCoy) Barrandia radians (McCoy) Ogygia radians McCoy: Holotype Ogygia radians McCoy |
| Registration No. | A 16691 |
|---|---|
| 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 | Pen Cerrig, Builth, Pen-cerig Lake, Radnorshire, Wales |
| Grid Reference | Not available |
| Rock Unit | Glyptograptus teretiusculus Shale (near top) |
|---|---|
| Biozone | gracilis |
| Geological Age |
Wenlock Epoch (Silurian Period) – Llandeilian Stage (Ordovician Period) (427.4 – 460.5 Ma B.P.) |
| References | Hughes 1979. Bulletin of the British Museum (Natural History). Geology vol. 32 (6): p.164 fig.143 McCoy 1849 b. Annals and Magazine of Natural History ser. 2 vol. iv (1): p.408 McCoy 1851 a. A synopsis of the classification of the British Palaeozoic rocks with a systematic description of the British Palaeozoic fossils (2): p.149 pl. i f figs.2, 2 a McCoy 1854 a. Contributions to British Palaeontology (1): p.147 Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (3): p.33 Whittard, W.F. 1961. The Ordovician trilobites of the Shelve Inlier, West Shropshire Palaeontographical Society Monographs vol. 17 (5): p.227 pl. xxxiii fig.10 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.140 |
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