1. Maconiceras
    [Maconiceras sp. (?m)]
  2. Macrocephalites
    [Macrocephalites (Kamptokephalites) aff. cossmani (m)]
  3. Macrocephalites
    [Macrocephalites (Kamptokephalites) lophopleurus (m)]
  4. Macrocephalites
    [Macrocephalites (Macrocephalites) gracilis (M)]
  5. Macrocephalites
    [Macrocephalites (Macrocephalites) gracilis (m)]
  6. Macrocephalites
    [Macrocephalites (Macrocephalites) lamellosus (M)]
  7. Macrocephalites
    [Macrocephalites (Macrocephalites) sp. (M)]
  8. Macrocephalites
    [Macrocephalites (Macrocephalites) subtrapezinus (M)]
  9. Macrocephalites
    [Macrocephalites (Macrocephalites) verus (M)]
  10. Macroscaphites
    [Macroscaphites striatisulcatus]
  11. Macroscaphites
    [Macroscaphites striatisulcatus]
  12. Macroscaphites
    [Macroscaphites yvani (M)]
  13. Macroscaphites
    [Macroscaphites yvani (m)]
  14. Maeneceras
    [Maeneceras subvaricatum subvaricatum]
  15. Mammites
    [Mammites asflaensis]
  16. Mammites
    [Mammites asflaensis]
  17. Mammites
    [Mammites mohovanensis]
  18. Mammites
    [Mammites nodosoides]
  19. Mammites
    [Mammites nodosoides]
  20. Mammites
    [Mammites nodosoides]
  21. Mammites
    [Mammites nodosoides]
  22. Mammites
    [Mammites nodosoides]
  23. Mammites
    [Mammites nodosoides]
  24. Mammites
    [Mammites nodosoides]
  25. Mammites
    [Mammites nodosoides]
  26. Mammites
    [Mammites nodosoides]
  27. Mammites
    [Mammites nodosoides]
  28. Mammites
    [Mammites nodosoides]
  29. Mantelliceras
    [Mantelliceras cantianum]
  30. Mantelliceras
    [Mantelliceras cantianum]
  31. Mantelliceras
    [Mantelliceras dixoni (M)]
  32. Mantelliceras
    [Mantelliceras mantelli (M)]
  33. Mantelliceras
    [Mantelliceras picteti (M)]
  34. Mantelliceras
    [Mantelliceras saxbii (M)]
  35. Manticoceras
    [Manticoceras gr. latisellatum]
  36. Maorites
    [Maorites (Maorites) subtilistriatus]
  37. Mariella
    [Mariella (Mariella) cenomanensis]
  38. Mariella
    [Mariella (Mariella) dorsetensis]
  39. Mariella
    [Mariella (Mariella) essenensis]
  40. Mariella
    [Mariella (Mariella) essenensis]
  41. Mariella
    [Mariella (Mariella) gallienii]
  42. Martelites
    [Martelites sarasini]
  43. Medioclymenia
    [Medioclymenia saourensis]
  44. Melchiorites
    [Melchiorites emerici]
  45. Melchiorites
    [Melchiorites strigosus]
  46. Menabites
    [Menabites (Menabites) lenoblei]
  47. Menuites
    [Menuites "wittekindi"]
  48. Menuites
    [Menuites "wittekindi"]
  49. Menuites
    [Menuites arrialoorensis (M)]
  50. Menuites
    [Menuites fresvillensis (M)]
  51. Menuites
    [Menuites sp.]
  52. Menuites
    [Menuites sp. (m)]
  53. Mesoturrilites
    [Mesoturrilites aumalensis]
  54. Mesoturrilites
    [Mesoturrilites serpuliforme]
  55. Metaderoceras
    [Metaderoceras gr. muticum]
  56. Metaderoceras
    [Metaderoceras venarense]
  57. Metagarantiana
    [Metagarantiana media (M)]
  58. Metaplacenticeras
    [Metaplacenticeras subtilistriatum]
  59. Metasigaloceras
    [Metasigaloceras rusticum]
  60. Metatissotia
    [Metatissotia cf. thomasi]
  61. Metatissotia
    [Metatissotia ewaldi]
  62. Metatissotia
    [Metatissotia ewaldi]
  63. Metatissotia
    [Metatissotia fourneli]
  64. Metengonoceras
    [Metengonoceras dumbli]
  65. Metoicoceras
    [Metoicoceras geslinianum]
  66. Microbiplices
    [Microbiplices (?) prowitteanus (m)]
  67. Micromphalites
    [Micromphalites (Clydomphalites) clydocromphalus]
  68. Mimimitoceras
    [Mimimitoceras comtum]
  69. Mollistephanus
    [Mollistephanus mollis]
  70. Morphoceras
    [Morphoceras (Ebrayiceras) pseudoanceps (m)]
  71. Morphoceras
    [Morphoceras jactatum (M)]
  72. Morphoceras
    [Morphoceras macrescens (M)]
  73. Morphoceras
    [Morphoceras macrescens (M)]
  74. Morphoceras
    [Morphoceras macrescens (M)]
  75. Morphoceras
    [Morphoceras multiforme (M)]
  76. Morrisiceras
    [Morrisiceras morrisi (M) juv.]
  77. Morrowites
    ["Morrowites dixeyi"]
  78. Morrowites
    ["Morrowites dixeyi"]
  79. Morrowites
    [Morrowites wingi]
  80. Morrowites
    [Morrowites wingi]
  81. Moutoniceras
    [Moutoniceras moutonianum]
  82. Mucrodactylites
    [Mucrodactylites mucronatus (m)]
  83. Muniericeras
    [Muniericeras bilottei]
  84. Muniericeras
    [Muniericeras bilottei]
  85. Muniericeras
    [Muniericeras palmarum]
  86. Myloceras
    [Myloceras cf. nautiloides]