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Siphuncular structure in a Silurian narthecoceratid nautiloid cephalopod from the Island of Gotland

Pages 375-378 | Received 09 Jan 1998, Published online: 06 Aug 2009

References

  • Dzik , J. 1984 . Phylogeny of the Nautiloidea . Palaeontologia Polonica , 45 : 3 – 203 .
  • Flower , R.H. 1968 . Silurian cephalopods of James Bay Lowland, with a revision of the family Narthecoceratidae . Geological Survey of Canada Bulletin , 164 : 1 – 88 .
  • Flower , R.H. 1984 . New species and structures in the Narthecoceratidae (Nautiloidea, Orthocerida) . Paläontologisches Zeitschrift , 58 : 79 – 87 .
  • Frey , R.C. 1981 . Nathecoceras (Cephalopoda) from the Upper Ordovician (Richmondian) of southwest Ohio . Journal of Paleontology , 55 : 1217 – 1224 .
  • Mutvei , H. 1997a . Characterization of actinoceratoid cephalopods by their siphuncular structure . Lethaia , 29 : 339 – 348 .
  • Mutvei , H. 1997b . Siphuncular structure in Ordovician endocerids . Acta Palaeontologica Polonica , 42 : 375 – 390 .

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