The Ammonoidea of the Upper Chalk. Part 2

  title={The Ammonoidea of the Upper Chalk. Part 2},
  author={W. J. Kennedy},
  journal={Monographs of the Palaeontographical Society},
  pages={106 - 290}
  • W. J. Kennedy
  • Published 2020
  • Geology
  • Monographs of the Palaeontographical Society
  • ABSTRACT A total of 40 species, assigned to 17 genera, belonging to the Suborder Ancyloceratina are described. One species is new. Sixteen are from the Upper Turonian, nine from the Lower Campanian, and 15 from the Upper Campanian. Eight types of aptychi are described.