Meek, F. B. (1871). Descriptions of new species of invertebrate fossils from the Carboniferous and Devonian rocks of Ohio. Proceedings of the Academy of Natural Sciences of Philadelphia. 23(1): 57-88.
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Meek, F. B.
1871
Descriptions of new species of invertebrate fossils from the Carboniferous and Devonian rocks of Ohio
Proceedings of the Academy of Natural Sciences of Philadelphia