Meek, F. B. (1868). Remarks of the geology of the valley of the Mackenzie River, with figures and descriptions of fossils from that region, in the museum of the Smithsonian Institution, chiefly collected by the late Robert Kennicott, Esq. Chicago. Acad. Sci., Trans. 1: 61-114, Pls. 12-14.
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Meek, F. B.
1868
Remarks of the geology of the valley of the Mackenzie River, with figures and descriptions of fossils from that region, in the museum of the Smithsonian Institution, chiefly collected by the late Robert Kennicott, Esq. Chicago