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 yvani (m)]
  11. Malbosiceras
    [Malbosiceras gr. malbosi]
  12. Mammites
    [Mammites nodosoides]
  13. Mammites
    [Mammites nodosoides]
  14. Mammites
    [Mammites nodosoides]
  15. Mammites
    [Mammites nodosoides]
  16. Mantelliceras
    [Mantelliceras cantianum]
  17. Mantelliceras
    [Mantelliceras cantianum]
  18. Mantelliceras
    [Mantelliceras dixoni (M)]
  19. Mantelliceras
    [Mantelliceras mantelli (M)]
  20. Mantelliceras
    [Mantelliceras mantelli juv.]
  21. Mantelliceras
    [Mantelliceras picteti (M)]
  22. Mantelliceras
    [Mantelliceras saxbii (M)]
  23. Maorites
    [Maorites (M.) subtilistriatus]
  24. Martelites
    [Martelites sarasini]
  25. Melchiorites
    [Melchiorites emerici]
  26. Menabites
    [Menabites (M.) lenoblei]
  27. Menuites
    [Menuites arrialoorensis (M)]
  28. Menuites
    [Menuites fresvillensis (M)]
  29. Menuites
    [Menuites sp.]
  30. Menuites
    [Menuites sp. (m)]
  31. Metaderoceras
    [Metaderoceras venarense]
  32. Metaplacenticeras
    [Metaplacenticeras subtilistriatum]
  33. Metasigaloceras
    [Metasigaloceras rusticum]
  34. Metatissotia
    [Metatissotia ewaldi]
  35. Metengonoceras
    [Metengonoceras dumbli]
  36. Metoicoceras
    [Metoicoceras geslinianum]
  37. Morphoceras
    [Morphoceras macrescens (M)]
  38. Morphoceras
    [Morphoceras macrescens (M)]
  39. Morphoceras
    [Morphoceras multiforme (M)]
  40. Morphoceras
    [Morphoceras sp. (M)]
  41. Morphoceras
    [Morphoceras (Ebrayiceras) pseudoanceps (m)]
  42. Mortoniceras
    [Mortoniceras (M.) cf. inflatum]
  43. Mortoniceras
    [Mortoniceras (M.) kiliani]
  44. Mortoniceras
    [Mortoniceras (M.) pricei]
  45. Mortoniceras
    [Mortoniceras (Subschloenbachia) rostratum]
  46. Moutoniceras
    [Moutoniceras moutonianum]
  47. Mucrodactylites
    [Mucrodactylites mucronatus (m)]
  48. Muniericeras
    [Muniericeras bilottei]
  49. Muniericeras
    [Muniericeras lapparenti]
  50. Muniericeras
    [Muniericeras palmarum]