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Spiniferites alaskensis
| alaskensis | |
| Marret, F., de Vernal, A., Pedersen, T.F. and McDonald, D. (2001) | |
| Fensome, R.A. and Williams, G.L. (2004) | |
| active | |
| 0.12 | |
| 0.08 | |
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No synonyms
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No synonyms
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