Fossil specimen : SM A 520 – Lectotype
| Taxonomic Group |
Kingdom Animalia Phylum Arthropoda Class Trilobita Order Asaphida |
|---|---|
| Fossil Name | Psilocephalus innotatus Salter |
| Type Status | Lectotype |
| Name History | Psilocephalus innotatus Salter – See Stubblefield, C.J. (1951): Lectotype Psilocephalus innotatus Salter – See Lake (1942) Symphysurus innotatus (Salter) Psilocephalus innotatus Salter – See Woods, H. (1891) Psilocephalus innotatus Salter – See Salter (1873) Psilocephalus innotatus Salter – See Ramsay (1866a): Syntype Psilocephalus innotatus Salter – See Salter, J.W. (1866): Syntype |
| Registration No. | A 520 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Homfray, David (1822-1893) |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | Wales |
|---|---|
| Locality | Borth, Caernarvonshire, Wales |
| Grid Reference | Not available |
| Rock Unit | Lower Tremadoc |
|---|---|
| Biozone | Not available |
| Geological Age |
Tremadoc Series (Ordovician Period) (477.7 – 485.4 Ma B.P.) [Closest ICS interval: Tremadocian Age ] |
| References | Lake 1942. A monograph of the British Cambrian Trilobites Palaeontographical Society Monographs p.311 pl. xliv fig.2 Ramsay 1866 a. The geology of North Wales Memoirs of the Geological Survey of England and Wales 1st edition appendix, p.315 pl. vi figs.9, 9 a Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge p.15 Salter, J.W. 1866. Palaeontographical Society Monographs p.175 pl. xx fig.14 Stubblefield, C.J. 1951. Geological Magazine vol. lxxxviii p.213 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 p.151 |
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