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†Cleviceras Howarth 1992
urn:lsid:organismnames.com:name:928225
Microreference
89
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†Cleviceras Howarth 1992
Howarth 1992. The ammonite family Hildoceratidae in the Lower Jurassic of Britain. Part 1. Palaeontographical Society Monographs (London), 145No. 586 1992: 1-106