Heterotrypa Nicholson, 1879

Type species: Monticulipora frondosa d'Orbigny, 1850

Synonyms Author Type Species
Dekayella Ulrich, 1882 Dekayella obscura Ulrich, 1883 (designation invalid?)

This genus includes the species:

  1. Heterotrypa aculeata
    		2. Hu, 1986 Late Ordovician Ashgill China WoRMS 1403811
  2. Heterotrypa affinis
    		3. (Ulrich, 1890) Late Ordovician Ashgill USA (Illinois) WoRMS 1411492
  3. Heterotrypa astrovae
    		4. Pushkin, 1976 Late Ordovician Caradoc Belarus WoRMS 1403812
  4. Heterotrypa compressa
    		5. Brood, 1978 Late Ordovician Ashgill Sweden Gotland WoRMS 1403813
  5. Heterotrypa crassimuralis
    		6. (Astrova, 1965) Middle Ordovician Arctic Russia WoRMS 1411493
  6. Heterotrypa cystata
    		7. (Cumings, 1901) Late Ordovician Ashgill USA (Indiana) WoRMS 1411494
  7. Heterotrypa? dalpiazzi
    		8. Vinassa de Regny, 1921 Late Ordovician Italy WoRMS 1403814
  8. Heterotrypa definita
    		9. Dyer, 1925 Late Ordovician Ashgill Canada (Ontario) WoRMS 1403815
  9. Heterotrypa enodis
    		10.  Ernst & Carrera, 2022 Late Ordovician Sandbian Argentina WoRMS 1590009
  10. Heterotrypa enormis
    		11. Astrova, 1959 Silurian Ludlovian Russia WoRMS 1403816
  11. Heterotrypa exovaria
    		12. Marintsch, 1998 Middle Ordovician USA (Tennessee) WoRMS 1403817
  12. Heterotrypa extensa
    		13. Fan & Hu, 1985 Late Silurian China WoRMS 1403818
  13. Heterotrypa foliacea
    		14. (Ulrich & Bassler, 1904) Late Ordovician Caradoc USA (Kentucky) WoRMS 1411495
  14. Heterotrypa frondosa
    		15. (d'Orbigny, 1850) Late Ordovician Caradoc USA (Ohio, Indiana, Kentucky) WoRMS 1411496
  15. Heterotrypa georgii
    		16. Modzalevskaya, 1968 Silurian Ludlovian Russia WoRMS 1403819
  16. Heterotrypa? girvanensis
    		17. (Nicholson, 1881) Late Ordovician Caradoc Scotland WoRMS 1411497
  17. Heterotrypa humensis
    		18. Ross, 1961 Silurian Australia (NSW) WoRMS 1403820
  18. Heterotrypa incelebrata
    		19. Modzalevskaya, 1968 Silurian Ludlovian Russia WoRMS 1403821
  19. Heterotrypa incrustans
    		20. Pushkin, 1976 Silurian, Llandovery Belarus WoRMS 1403822
  20. Heterotrypa inflectiformis
    		21.  Pushkin, 1987 Late Ordovician Belarus WoRMS 1438693
  21. Heterotrypa lata
    		22. Kopajevich, 1984 Late Ordovician Ashgill Mongolia WoRMS 1403823
  22. Heterotrypa magnopora
    		23. Boulange, 1963 Late Ordovician Ashgill France WoRMS 1403824
  23. Heterotrypa magnopora
    (Homonym)
    		24. Marintsch, 1998 Middle Ordovician USA (Tennessee) WoRMS 1403825
  24. Heterotrypa meafordensis
    		25. Fritz, 1975 Late Ordovician Ashgill Canada WoRMS 1403826
  25. Heterotrypa? megacanthopora
    		26. (Owen, 1960) Silurian Ludlovian Wales WoRMS 1411498
  26. Heterotrypa microstigma
    		27. Cumings & Galloway, 1913 Late Ordovician Ashgill USA (Indiana) WoRMS 1403827
  27. Heterotrypa obscura
    		28. (Ulrich, 1883) Late Ordovician Caradoc USA (Ohio) WoRMS 1411499
  28. Heterotrypa obvoluta
    		29.  Pushkin, 2011 Ordovician Belarus WoRMS 1439624
  29. Heterotrypa ovata
    		30. Astrova, 1957 Late Silurian Ludlovian Russia WoRMS 1403828
  30. Heterotrypa pajkhoyensis
    		31. (Astrova, 1948) Middle Ordovician Russia WoRMS 1411500
  31. Heterotrypa parvulipora
    		32. Ulrich & Bassler, 1904 Late Ordovician Caradoc USA (Tennessee, Kentucky) WoRMS 1403829
  32. Heterotrypa patera
    		33. Coryell, 1921 Late Ordovician Caradoc USA (Tennessee, Alabama) WoRMS 1403830
  33. Heterotrypa pauca
    		34. Perry, 1962 Late Ordovician Caradoc USA (Iowa, Illinois) WoRMS 1403831
  34. Heterotrypa paupera
    		35. (Ulrich, 1883) Late Ordovician Caradoc USA (Ohio) WoRMS 1411501
  35. Heterotrypa peripherilata
    		36. Fan & Hu, 1985 Late Silurian China (Yunnan) WoRMS 1403832
  36. Heterotrypa? perplexa
    		37. Perry & Hattin, 1960 Silurian, Wenlockian USA (Indiana) WoRMS 1403833
  37. Heterotrypa pontensis
    		38. Ross, 1961 Early Devonian Australia (Vic.) WoRMS 1403834
  38. Heterotrypa praenuntia
    		39. (Ulrich, 1893) Late Ordovician Caradoc USA Minnesota, Estonia, Canada WoRMS 1411502
  39. Heterotrypa praenuntia alexandria
    		40.  (Fritz, 1957) Ordovician Caradoc=Sandbian-Katian Canada Ontario WoRMS 1415158
  40. Heterotrypa praenuntia echinata
    		41. (Ulrich, 1893) Late Ordovician Caradoc USA, Canada WoRMS 1415159
  41. Heterotrypa praenuntia multipora
    		42. (Ulrich, 1893) Late Ordovician Caradoc USA (Minnesota) WoRMS 1415160
  42. Heterotrypa praenuntia naevigera
    		43. (Ulrich, 1893) Late Ordovician Caradoc USA, Estonia WoRMS 1415161
  43. Heterotrypa praenuntia simplex
    		44. (Ulrich, 1893) Late Ordovician Caradoc USA, Estonia WoRMS 1415162
  44. Heterotrypa pretiosa
    		45. Modzalevskaya, 1968 Silurian Ludlovian Russia WoRMS 1403835
  45. Heterotrypa qujingensis
    		46. Fan & Hu, 1985 Late Silurian China (Yunnan) WoRMS 1403836
  46. Heterotrypa? ramosa
    		47.  (Owen, 1960) Late Silurian Ludlovian England WoRMS 1411503
  47. Heterotrypa rapinae
    		48. Pedder, 1971 Early Devonian Pragian Australia (NSW) WoRMS 1403837
  48. Heterotrypa ridleyana
    		49. (Coryell, 1921) Late Ordovician Caradoc USA (Tennessee, Alabama) WoRMS 1411504
  49. Heterotrypa ringerikensis
    		50.  Ernst & Nakrem, 2015 Silurian Wenlock Norway WoRMS 1403838
  50. Heterotrypa robusta
    (Homonym?)
    		51.  (Foord, 1884) Ordovician Ashgill=Katian-Hirnantian Canada Ontario WoRMS 1411505
  51. Heterotrypa robusta
    		52. Dyer, 1925 Late Ordovician Ashgill
    Silurian    		 Canada
    Mongolia    		 WoRMS 1403839
  52. Heterotrypa rugosa
    		53. Marintsch, 1998 Middle Ordovician USA (Tennessee) WoRMS 1403840
  53. Heterotrypa semisphaerica
    		54. Pushkin, 1976 Ordovician Llandeilo Belarus WoRMS 1403841
  54. Heterotrypa simplex
    		55. Dyer, 1925 Late Ordovician Ashgill Canada WoRMS 1403842
  55. Heterotrypa simplex maculosa
    		56. Dyer, 1925 Late Ordovician Ashgill Canada WoRMS 1414900
  56. Heterotrypa singularis
    		57. Ulrich, 1890 Late Ordovician Ashgill USA (Illinois, Wisconsin, Indiana) WoRMS 1403843
  57. Heterotrypa sladei
    		58. Buttler, 1991 Late Ordovician Ashgill Wales WoRMS 1403844
  58. Heterotrypa solitaria
    		59.  Ulrich, 1883 Late Ordovician Caradoc USA, Canada WoRMS 1403845
  59. Heterotrypa solitaria
    (Homonym)
    		60. (Dyer, 1925) Late Ordovician Ashgill Canada WoRMS 1411506
  60. Heterotrypa spinosa
    		61. Kopajevich, 1984 Silurian Landovery-Wenlockian Mongolia WoRMS 1403846
  61. Heterotrypa subfrondosa
    		62. (Cumings, 1902) Late Ordovician Ashgill USA (Indiana) WoRMS 1411507
  62. Heterotrypa subramosa
    		63. (Ulrich, 1879) Late Ordovician Ashgill USA, Canada WoRMS 1411508
  63. Heterotrypa subtrentonensis
    		64. Marintsch, 1998 Middle Ordovician USA (Tennessee) WoRMS 1403847
  64. Heterotrypa taffi
    		65. Loeblich, 1942 Late Ordovician Caradoc USA (Oklahoma) WoRMS 1403848
  65. Heterotrypa tenuis
    		66. Astrova, 1959 Silurian Ludlovian Russia WoRMS 1403849
  66. Heterotrypa trentonensis
    		67. (Ulrich, 1883) Late Ordovician Caradoc USA, Canada WoRMS 1411509
  67. Heterotrypa ulrichi
    		68. (Nicholson, 1881) Late Ordovician Caradoc USA WoRMS 1411510
  68. Heterotrypa undata
    undulata?
    		69. Stewart, 1922 Devonian ?Pragian USA WoRMS 1403850
  69. Heterotrypa undata
    		70.  Pushkin, 1987 Late Ordovician Sandbian Latvia WoRMS 1438695
  70. Heterotrypa wilmingtonensis
    		71. (Ulrich & Bassler, 1904) Late Ordovician USA, Russia, Mongolia WoRMS 1411511
  71. Heterotrypa? zubovkaensis
    		72. Modzalevskaya, 1968 Silurian Wenlock Russia WoRMS 1403851

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.

Heterotrypa praenuntia has also been referred to Dekayia, which presumably would reassign all the subspecies to the latter genus.

Dekayella (=Heterotrypa) at University of Georgia.
Dekayella (=Heterotrypa) from Nashville region: at University of Georgia.
Heterotrypa at University of Georgia.
Heterotrypa from Nashville region: at University of Georgia.

Heterotrypa subfrondosa reconstructions at DryDredgers.org.

Heterotrypa from fossiilid.info.

Home Page Systematic Family List Alphabetic Family List Family Page
 
Edited by Phil Bock
Modified on 3/07/2015
Modified on 3/6/2020 (Added WoRMS links)
Modified on 4/6/2020 (Added 4 species)
Modified on 18/6/2022 (Added H.enodis)
This URL is http://bryozoa.net/trepostomatida/heterotrypidae/heterotrypa.html