Fossil specimen : SM A 29185 - A 29188 – Paratype
| Taxonomic Group |
Kingdom Animalia Phylum Brachiopoda Class Strophomenata Order Strophomenida |
|---|---|
| Fossil Name | Leptestiina derfelensis (Jones O.T.), 1928 |
| Type Status | Paratype |
| Name History | Leptestiina derfelensis (Jones O.T.), 1928 Leptellina derfelensis (Jones O.T.) Leptelloidea derfelensis Jones: Paratype Plectambonites llandeiloensis (Davidson) |
| Registration No. | A 29185 - A 29188 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Elles, Gertrude Lilian (1872-1960) |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | Wales |
|---|---|
| Locality | Derfel gorge, Arenig Station, Wales |
| Grid Reference | Not available |
| Rock Unit | Derfel Limestone (base) |
|---|---|
| Biozone | Not available |
| Geological Age |
Caradoc Series (Ordovician Period) (449 – 458.4 Ma B.P.) [Closest ICS interval: Late Ordovician Epoch ] |
| References | Elles, G.L. 1922. The Bala Country: its Structure and Rock Succession Quarterly Journal of the Geological Society of London volume lxxviii pages 132 - ? (1): p.169 Jones, O.T. 1928. Memoirs of the Geological Survey of England and Wales (Palaeontology) vol. i part 5 (2): i part 5, p.479 |
|---|
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