Taxonomic Group |
Kingdom Animalia Phylum Arthropoda Class Trilobita Order Lichida |
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Fossil Name | Primaspis semievoluta (Reed) |
Type Status | Paratype |
Name History | Primaspis semievoluta (Reed): Paratype Acidaspis semievoluta Reed: Syntype |
Registration No. | A 29952 |
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Collector | Name not available |
Donor or Associated Person | Turnbull, V.M. |
Held By | Sedgwick Museum of Earth Sciences, University of Cambridge |
Comments |
Country | England |
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Locality | Alston (road cutting), Melmerby, Cumberland, England |
Grid Reference | Not available |
Rock Unit | Lower Melmerby Bed (matrix) |
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Biozone | Not available |
Geological Age |
Cheneyan Stage (Ordovician Period) (451.5 – 452.75 Ma B.P.) [Closest ICS interval: Katian Age ] |
References | Dean 1962 a. Bulletin of the British Museum (Natural History). Geology vol. 7 (2): p.122 pl.17 fig.10 Reed, F.R.C. 1910 a. Geological Magazine n.s. dec. v, vol vii (1): pp.211, 214 pl. xvii fig.2 |
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