Published online by Cambridge University Press: 01 May 2009
The original specimen (a 878) is in a very perfect condition and comes from the Wenlock Limestone of Dudley. It also belongs to the Fletcher Collection. There is no other specimen of this species in the Woodwardian Museum. Salter calls it “a new square species.”
For previous articles see Geol. Mag., 1901, pp. 5, 106, 246, 355, and 576.
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