Girty G.H. (1909). Paleontology of the Manzano group. <em>Bulletin of the United States Geological Survey.</em> 389: 40-141. page(s): 103, pl. 11, fig. 1 [details]
original descriptionGirty G.H. (1909). Paleontology of the Manzano group. <em>Bulletin of the United States Geological Survey.</em> 389: 40-141. page(s): 103, pl. 11, fig. 1 [details]
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