Lochman C., Duncan D.C. (1944). Early Upper Cambrian faunas of central Montana. <em>Geological Society America Bulletin.</em> 54: 461-477. page(s): 42, pl. 4, fig. 6 [details] Available for editors [request]
original descriptionLochman C., Duncan D.C. (1944). Early Upper Cambrian faunas of central Montana. <em>Geological Society America Bulletin.</em> 54: 461-477. page(s): 42, pl. 4, fig. 6 [details] Available for editors [request]
Present Inaccurate Introduced: alien Containing type locality
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