Cyphotrypa Ulrich & Bassler, 1904

Type species: Leptotrypa acervulosa Ulrich, 1893

This genus includes the species:

  1. Cyphotrypa acervulosa
  2. (Ulrich, 1893) Ordovician USA (Iowa)
  3. Cyphotrypa alexandrae
  4. Modzalevskaya, 1978 L. Silurian Russia
  5. Cyphotrypa alternata
  6. Liu, 1980 M. Ordovician NE China
  7. Cyphotrypa americana
  8. (Fritz, 1957) Ordovician Caradoc Canada Ontario
  9. Cyphotrypa antiqua
  10. (Modzalevskaya, 1953) Ordovician Arenigian Russia
  11. Cyphotrypa bulbosa
  12. (Billings, 1865) Ordovician Ashgill Canada Anticosti Is.
  13. Cyphotrypa clarksvillensis
  14. MacFarlan, 1931 Ordovician Ashgillian USA Kentucky
  15. Cyphotrypa columnaris
  16. Kopajevich, 1984 Devonian Givetian-Frasnian Mongolia
  17. Cyphotrypa? corrugata
  18. (Weller, 1903) Silurian-Devonian USA, Belarus
  19. Cyphotrypa corrugatiformis
  20. Kopajevich, 1984 U. Silurian Mongolia
  21. Cyphotrypa definita
  22. Morozova, 1959 Devonian Russia ?
  23. Cyphotrypa expanda
  24. Bassler, 1923 Silurian, Pridolian USA West Virginia, Pennsylvania
  25. Cyphotrypa explorata
  26. Troitzkaia, 1968 U. Devonian Kazakhstan
  27. Cyphotrypa hexagonalis
  28. (Nekhorosheva, 1965) Ordovician Caradocian Russia
  29. Cyphotrypa informis
  30. (Ulrich, 1895) Ordovician Caradocian USa Minnesota
  31. Cyphotrypa insulans
  32. Astrova, 1970 L. Silurian Estonia
  33. Cyphotrypa juruensis
  34. Astrova, 1970 L. Silurian Estonia
  35. Cyphotrypa? kojimensis
  36. Astrova, 1945 Silurian Russia
  37. Cyphotrypa kondomensis
  38. Morozova, 1959 Devonian Frasnian Russia?
  39. Cyphotrypa kossjensis
  40. (Astrova, 1940) Ordovician Russia
  41. Cyphotrypa lamellosa
  42. Ross, 1961 Devonian Australia
  43. Cyphotrypa liuyangensis
  44. Li, 1992 Devonian China (Hunan)
  45. Cyphotrypa maculata
  46. Astrova, 1970 U. Silurian Estonia
  47. Cyphotrypa madisonensis
  48. Brown & Daly, 1985 U. Ordovician USA (Indiana)
  49. Cyphotrypa magna
  50. Boulange, 1964 Ordovician France (Languedoc)
  51. Cyphotrypa minuscula
  52. Volkova, 1974 M. Devonian Russia
  53. Cyphotrypa murrumbidgensis
  54. Ross, 1961 Devonian Australia (NSW)
  55. Cyphotrypa normalis
  56. Pushkin, 1976 U. Silurian Belarus
  57. Cyphotrypa olgae
  58. Tolokonnikova, 2010 Late Devonian Famennian Russia Gornyi Altai
  59. Cyphotrypa osgoodensis
  60. Perry & Hattin, 1960 Silurian USA (Indiana)
  61. Cyphotrypa pachymuralis
  62. Brown, 1965 Ordovician USA (Kentucky)
  63. Cyphotrypa perillustris
  64. Troitzkaia, 1968 M. Devonian Kazakhstan
  65. Cyphotrypa polygona
  66. Bassler, 1928 Ordovician Ashgill Canada
  67. Cyphotrypa putunggouensis
  68. Liu, 199x(undated) Devonian China (Szechuan)
  69. Cyphotrypa regularis
  70. Jiménez-Sánchez, 2015 Late Ordovician Katian Morocco
  71. Cyphotrypa simplex
  72. Hu, 1988 Devonian Frasnian China
  73. Cyphotrypa sphaerica
  74. Astrova, 1959 Silurian Russia?
  75. Cyphotrypa switzeriensis
  76. Karklins, 1984 U. Ordovician USA (Kentucky)
  77. Cyphotrypa undulata
  78. Hu, 1990 L. Silurian China
  79. Cyphotrypa verae
  80. Modzalevskaya, 1978 L. Silurian Russia
  81. Cyphotrypa waynensis
  82. Utgaard & Perry, 1964 U. Ordovician USA (Indiana, Ohio)
  83. Cyphotrypa whiteavesi
  84. McCammon, 1960 Devonian Canada (Manitoba)
  85. Cyphotrypa yak
  86. (Salter & Blanford, 1865) Late Ordovician India
  87. Cyphotrypa zlichovensis
  88. Kulich, 1984 L. Devonian Czech Republic?

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.

Cyphotrypa from Cincinnati region: at University of Georgia.
Cyphotrypa from Nashville region: at University of Georgia.


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Edited by Phil Bock
Modified on 11/06/2016
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