Hay, OP, 1899, On the nomenclature of certain American fossil vertebrates

Hay, OP, 1899, On the nomenclature of certain American fossil vertebrates, The American Geologist 24, pp. 345-349

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https://doi.org/10.1126/science.10.243.253

link to original document

https://doi.org/10.1126/science.10.243.253

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