Fossil specimen : SM A 36532 – Lectotype
| Taxonomic Group |
Kingdom Animalia Phylum Echinodermata Class Crinoidea Order Diplobathrida |
|---|---|
| Fossil Name | Balacrinus basalis (McCoy) |
| Type Status | Lectotype |
| Name History | Balacrinus basalis (McCoy): Lectotype Glyptocrinus basalis McCoy Glyptocrinus basalis McCoy: Paratype Glyptocrinus basalis McCoy |
| Registration No. | A 36532 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Name not available |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments | part and counterpart : (parts a-b) |
| Country | Wales |
|---|---|
| Locality | Alt yr Anker / Allt yr Anker / Gallt-yr-Ancr, Meifod, Montgomeryshire, Wales |
| Grid Reference | Not available |
| Rock Unit | Bed C2 (probably) |
|---|---|
| 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 | McCoy 1850 a. Annals and Magazine of Natural History ser. 2 vol. vi (1): P.289 McCoy 1851 a. A synopsis of the classification of the British Palaeozoic rocks with a systematic description of the British Palaeozoic fossils (2): p.57 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 (2): p.351 McCoy 1854 a. Contributions to British Palaeontology (1): p.177 Ramsbottom 1961 for 1960. A monograph of British Ordovician Crinoids Palaeontographical Society Monographs vol. 30 (4): v p.25 pl. vii fig.4 (a.36, 532a) Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (3): p.45 |
|---|
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