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†Perisphinctes (Pseudopomerania) Wright 1996
urn:lsid:organismnames.com:name:1189409
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438
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†Perisphinctes (Pseudopomerania) Wright 1996
Wright 1996. Perisphinctid ammonites of the Upper Calcareous Grit (Upper Oxfordian) of North Yorkshire. Palaeontology (Oxford), 39(2), July 1996: 433-469