Additional observations on the Jurassic Belemnoids of Poland
Halina Pugaczewska
Acta Palaeontologica Polonica 10 (1), 1965: 111-123
Four species of belemnoids, one new: Belemnopsis wiekensis n. sp . from the Middle Jurassic and from lower horizons of the Upper Jurassic of Poland, belonging to the subfamily Belemnopsinae Naef, 1922, are described tog ether with observations on the ontogeny, variability and structure of rostra.
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