1. Maconiceras
    [Maconiceras sp. (?m)]
  2. Macrocephalites
    [Macrocephalites (Kamptokephalites) aff. cossmani (m)]
  3. Macrocephalites
    [Macrocephalites (Kamptokephalites) lophopleurus (m)]
  4. Macrocephalites
    [Macrocephalites (M.) gracilis (m)]
  5. Macrocephalites
    [Macrocephalites (M.) gracilis (M)]
  6. Macrocephalites
    [Macrocephalites (M.) lamellosus (M)]
  7. Macrocephalites
    [Macrocephalites (M.) sp. (M)]
  8. Macrocephalites
    [Macrocephalites (M.) subtrapezinus (M)]
  9. Macrocephalites
    [Macrocephalites (M.) verus (M)]
  10. Macroscaphites
    [Macroscaphites striatisulcatus]
  11. Macroscaphites
    [Macroscaphites striatisulcatus]
  12. Macroscaphites
    [Macroscaphites yvani (m)]
  13. Macroscaphites
    [Macroscaphites yvani (M)]
  14. Mammites
    [Mammites nodosoides]
  15. Mammites
    [Mammites nodosoides]
  16. Mammites
    [Mammites nodosoides]
  17. Mammites
    [Mammites nodosoides]
  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. Mantelliceras
    ["Mantelliceras" cf. aumalense]
  26. Mantelliceras
    [Mantelliceras cantianum]
  27. Mantelliceras
    [Mantelliceras cantianum]
  28. Mantelliceras
    [Mantelliceras dixoni (M)]
  29. Mantelliceras
    [Mantelliceras mantelli (M)]
  30. Mantelliceras
    [Mantelliceras picteti (M)]
  31. Mantelliceras
    [Mantelliceras saxbii (M)]
  32. Maorites
    [Maorites (M.) subtilistriatus]
  33. Mariella
    [Mariella (M.) dorsetensis]
  34. Mariella
    [Mariella (M.) essenensis]
  35. Mariella
    [Mariella (M.) essenensis]
  36. Mariella
    [Mariella (M.) gallienii]
  37. Martelites
    [Martelites sarasini]
  38. Melchiorites
    [Melchiorites emerici]
  39. Melchiorites
    [Melchiorites strigosus]
  40. Menabites
    [Menabites (M.) lenoblei]
  41. Menuites
    [Menuites arrialoorensis (M)]
  42. Menuites
    [Menuites fresvillensis (M)]
  43. Menuites
    [Menuites sp.]
  44. Menuites
    [Menuites sp. (m)]
  45. Menuites
    [Menuites "wittekindi"]
  46. Menuites
    [Menuites "wittekindi"]
  47. Mesoturrilites
    [Mesoturrilites aumalensis]
  48. Mesoturrilites
    [Mesoturrilites serpuliforme]
  49. Metaderoceras
    [Metaderoceras gr. muticum]
  50. Metaderoceras
    [Metaderoceras venarense]
  51. Metaplacenticeras
    [Metaplacenticeras subtilistriatum]
  52. Metasigaloceras
    [Metasigaloceras rusticum]
  53. Metatissotia
    [Metatissotia ewaldi]
  54. Metengonoceras
    [Metengonoceras dumbli]
  55. Metoicoceras
    [Metoicoceras geslinianum]
  56. Micromphalites
    [Micromphalites (Clydomphalites) clydocromphalus]
  57. Mollistephanus
    [Mollistephanus mollis]
  58. Morphoceras
    [Morphoceras macrescens (M)]
  59. Morphoceras
    [Morphoceras macrescens (M)]
  60. Morphoceras
    [Morphoceras multiforme (M)]
  61. Morphoceras
    [Morphoceras sp. (M)]
  62. Morphoceras
    [Morphoceras (Ebrayiceras) pseudoanceps (m)]
  63. Morrowites
    ["Morrowites dixeyi"]
  64. Morrowites
    ["Morrowites dixeyi"]
  65. Morrowites
    [Morrowites wingi]
  66. Morrowites
    [Morrowites wingi]
  67. Mortoniceras
    [Mortoniceras (M.) cf. inflatum]
  68. Mortoniceras
    [Mortoniceras (M.) kiliani]
  69. Mortoniceras
    [Mortoniceras (M.) pricei]
  70. Mortoniceras
    [Mortoniceras (Subschloenbachia) rostratum]
  71. Moutoniceras
    [Moutoniceras moutonianum]
  72. Mucrodactylites
    [Mucrodactylites mucronatus (m)]
  73. Muniericeras
    [Muniericeras bilottei]
  74. Muniericeras
    [Muniericeras bilottei]
  75. Muniericeras
    [Muniericeras palmarum]