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Ptenidium kishenehnicum (Coleoptera: Ptiliidae), a new fossil described from the Kishenehn oil shales, with a checklist of previously known fossil ptiliids
On our present knowledge of the invertebrate fauna of the Lower Carboniferous or Calciferous Sandstone Series of the Edinburgh neighbourhood, especially of that division known as the Wardie Shales; and on the first appearance of certain species in these beds