Pycnobasis Boardman, 1960

Type species: Leptotrypella (Pycnobasis) amphelicta Boardman, 1960

This genus includes the species:

  1. Pycnobasis amphelicta
  2. Boardman, 1960 Devonian Givetian USA
  3. Pycnobasis hunanensis
  4. Yang, Hu & Xia, 1988 U. Devonian Frasnian China
  5. Pycnobasis laxa
  6. Lu, 1983 M. Devonian China
  7. Pycnobasis muralispina
  8. Yang, Hu & Xia, 1988 U. Devonian Frasnian China
  9. Pycnobasis obliqua
  10. Yang, Hu & Xia, 1988 U. Devonian Frasnian China
  11. Pycnobasis pachyphragma
  12. Boardman, 1960 Devonian Givetian USA
  13. Pycnobasis polita
  14. Boardman, 1960 Devonian Givetian USA
  15. Pycnobasis spissa
  16. Yang, Hu & Xia, 1988 U. Devonian Frasnian China
  17. Pycnobasis tuberata
  18. Boardman, 1960 Devonian Givetian USA
  19. Pycnobasis undulata
  20. Yang, Hu & Xia, 1988 U. Devonian Frasnian China

This information is based upon various sources, but no personal knowledge. I am indebted to the late Alan Horowitz for his compilation, and to Dr. J. Pachut.
I would be grateful for corrections to, or critical reviews of this information. This is not a 'final' version (an impossible ideal), but a working document.


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Edited by Phil Bock
Modified on 25th February 2005
This URL is http://bryozoa.net/trepostomatida/atactotoechidae/pycnobasis.html