| Alainaspis platyrhina Temporal range:
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| Genus: | Alainaspis Elliott & Dineley, 1985
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| Species: | A. platyrhina
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| Binomial name | |
| Alainaspis platyrhina Elliott & Dineley, 1985
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Alainaspis platyrhina is an extinct cyathaspidid heterostracan agnathan vertebrate which existed in a marine environment in what is now the Northwest Territories of Canada, during the upper Silurian period.[1] It was first named by David Elliott and David Dineley in 1985, and is placed in the monotypic genus Alainaspis, closely related to Boothiaspis.[2]