Pachydictya Ulrich, 1882

Type species: Pachydictya robusta Ulrich, 1882

This genus includes the species:

  1. Pachydictya angusticellata
    		2. Astrova, 1965 M. Ordovician Russia WoRMS 1406114
  2. Pachydictya bromidensis
    		3. Loeblich, 1942 Ordovician (Caradoc) USA (Oklahoma) WoRMS 1406115
  3. Pachydictya copiosa
    		4. Astrova, 1965 M. Ordovician Russia WoRMS 1406116
  4. Pachydictya coxi
    		5. Oakley, 1938 Ordovician (Caradoc) Canada WoRMS 1406117
  5. Pachydictya cystiphragma
    		6. Astrova, 1965 M. Ordovician Russia WoRMS 1406118
  6. Pachydictya dichotoma
    		7. Nekhoroshev, 1955 Silurian (Llandovery) Russia WoRMS 1406119
  7. Pachydictya emaciata
    		8. Foerste, 1887 Silurian (Llandovery) USA (Ohio) WoRMS 1406120
  8. Pachydictya emarcescens
    		9. Foerste, 1889 Silurian (Llandovery) USA (Ohio) WoRMS 1406121
  9. Pachydictya everetti
    		10. Ulrich, 1890 Ordovician (Caradoc) USA, Mongolia WoRMS 1406122
  10. Pachydictya everettiformis
    		11. Astrova, 1965 M. Ordovician Russia WoRMS 1406123
  11. Pachydictya? famelica
    		12. (Foerste, 1889) Silurian (Llandovery) USA (Ohio) WoRMS 1412667
  12. Pachydictya firma
    		13. Ulrich, 1890 Ordovician (Ashgill) USA, Canada WoRMS 1406124
  13. Pachydictya flabellum
    		14. (Leuchtenberg in Eichwald, 1855) Ordovician (Caradoc) Russia, Estonia, Belarus WoRMS 1412668
  14. Pachydictya hexagonalis
    		15. Ulrich, 1889 Ordovician, Silurian Canda WoRMS 1406125
  15. Pachydictya kuckersensis
    		16. Bekker, 1919 Ordovician USA WoRMS 1406126
  16. Pachydictya magnipora
    		17. Ulrich, 1889 Ordovician (Caradoc) USA, Canada WoRMS 1406127
  17. Pachydictya meneghinii
    		18. Vinassa de Regny, 1942 Ordovician (Caradoc) Italy (Sardinia) WoRMS 1406128
  18. Pachydictya miranda
    		19. Astrova, 1965 M. Ordovician Russia WoRMS 1406129
  19. Pachydictya pectinata
    		20. Nekhorosheva, 1970 Ordovician (Ashgill) Russia WoRMS 1406130
  20. Pachydictya robusta
    		21. Ulrich, 1882 Ordovician (Caradoc) USA (Tennessee) WoRMS 1406131
  21. Pachydictya? sardoa
    		22. Vinassa de Regny, 1942 Ordovician Italy WoRMS 1406132
  22. Pachydictya senilis
    		23. Coryell, 1921 Ordovician USA (Tennessee) WoRMS 1406133
  23. Pachydictya sheldonensis
    		24. Ross, 1963 Ordovician USA (Vermont) WoRMS 1406134
  24. Pachydictya splendens
    		25. Ulrich, 1890 Ordovician (Ashgill) USA (Illinois) WoRMS 1406135
  25. Pachydictya? suffruticosa
    		26.  (Meneghini, ?1880) Ordovician Caradoc=Sandbian-Katian Italy Sardinia WoRMS 1412669
  26. Pachydictya uralica
    		27. Astrova, 1965 Ordovician USA WoRMS 1406136

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 7th April 2004
Modified on 13/9/2017 (Added P.suffruticosa, removed three species)
Modified on 13/6/2020 (Added WoRMS links)
This URL is http:// bryozoa.net/cryptostomida/rhinidictyidae/pachydictya.html