Machairodinae, Machairodus 727.
Maclurea 316.
Macrauchenia 752, 753.
Macrocephalenschichten 15, 439.
Macrocephalites 439.
Macrochilus 323.
Macrodon 247.
Macropodidae 702, 703.
Macropoma 563.
Macropus 713.
Macroscaphites 422.
Macrotherium 778.
Macrura 504.
Mactra 245.
Madrepora 97.
Madreporaria 87.
Madreporenplatte 120.
Madreporinae 97.
Maeandrospongidae 63, 66.
Magas 226.
Magnosellares (Goniat.) 399.
Mahlzähne (Vertebr.) 526.
Mainzer Stufe 13.
Malacostraca 478, 502.
Malm 15.
Mammalia 527, 587, 678.
Mammalia d. alten Welt 816.
Mammalia d. neuen Welt 819.
Mammalia, Geol. Verbr. d. 814, 823.
Mammalia, Stammbaum d. 822.
Manatus 709.
Mandibula (Vertebr.) 521.
Manidae 736.
Manticoceras 396.
Margaritatus-Zone 15, 415.
Marsupialia 695, 700, 814.
Marsupites 155, 168.
Mastodon 758.
Mastodonsaurus 613.
Maxillare (Vertebr.) 524.
Maxillare (Quadr.) 592.
Mediterranstufen 13.
Medlicottia 410.
Meeresmolasse 13.
Meeressand 13.
Megaceros 807.
Megalithista 59.
Megalodon 267.
Megalodontidae 258, 266.
Megalonychinae 740.
Megalonyx 741.
Megalonyx-Beds 741, 820, 824, 826.
Megalosauridae 660.
Megalosaurus 660.
Megalurus 577.
Megamorina 52, 58.
Megamys 735.
Megaphyllites 418.
Megatheriidae 737, 739.
Megatheriinae 739.
Megatherium 739.
Megerlea 226.
Melanerpeton 607.
Melania 306, 331.
Melanidae 317, 321.
Melanopsis 304, 322.
Meletta 580.
Melocrinidae 158.
Melocrinus 154, 158.
Melonites 123.
Membranipora 194.
Menevian-Stufe 18.
Meniscotheriidae 750, 751.
Meniscotherium 751.
Menodus 768, 778.
Menophyllum 100.
Mensch 745.
Merychippus 769, 782.
Merychyus 800.
Merycochoerus 800.
Mesenterialfächer, Mesenterialfalten 84.
Mesites 180.
Mesohippus 769, 781.
Mesonychidae 712, 713.
Mesonyx 713.
Mesopithecus 745.
Mesosaurus 627.
Mesozoicum 11.
Mesozoische Periode 12.
Metabola 513.
Metacarpus (Quadr.) 598.
Metalophodon 764.
Metapophyse (Mamm.) 680.
Metastoma 498.
Metatarsale (Quadr.) 598.
Metaxytherium 708.
Metriorhynchus 655.
Miacidae 712, 716.
Michelinia 112.
Micraster 138.
Microdon 574.
Microlestes 699.
Micromeryx 806.
Miesmuschel 284.
Milchgebiss (Mamm.) 688.
Miliola 21, 23.
Miliolidae 22, 23.
Miliolidenkalk 23, 38.
Miliolina 23.
Millepora, Milleporidae 77.
Mimoceras 394.
Mimoceratinae 391, 394.
Miocän 13.
Mioclaenus 712.
Miohippus 781.
Miolophus 729.
Mittelschild (Trilob.) 482.
Mixosaurus 642.
Modiola 284.
Molar (Mamm.) 688.
Molasse 13.
Mollusca 19, 228.
Molluscoidea 19, 189.
Moltkia 86.
Monactinellidae 49, 59.
Monakt 47.
Monograptus 79.
Monomyaria 233, 279.
Monophyllites 420.
Monophyodontes Gebiss (Vertebr.) 527.
Monopleura, Monopleuridae 271, 274.
Monoprionidae 78, 79.
Monotis 239, 279.
Monotremata 695, 696.
Monotrypa 113.
Monticulipora 113.
Monticuliporidae 108, 113.
Montlivaultia 91.
Montmartre-Gyps 13.
Morosauridae, Morosaurus 663.
Mosasaurus 646.
Moschus 805.
Mucronatenkreide 469.
Muensteroceras 393.
Multilobati 392, 394.
Multituberculata 695, 698, 814.
Muraenidae 576.
Murchisonae-Schichten 15, 288.
Murchisonia 304, 310.
Murex 304, 333.
Muricidae 330, 333.
Muridae 735.
Muschelkalk 16.
Muschelsandstein 13, 16.
Mustela 723.
Mustelidae 718, 723.
Mutation 18.
Mya 244.
Myacites 242, 243, 264.
Myliobatis, Myliobatidae 549.
Mylodon 740.
Myodes 735.
Myolagus 736.
Myomorpha 732, 735.
Myophoria 251, 253.
Myoxus 732.
Myriapoda 476, 512.
Myrmecobiidae 701, 703.
Myrmecobius 703.
Myrmecophagidae 737, 741.
Mytilacea 279, 280.
Mytilidae 280, 284.
Mytiloides-Pläner 283.
Mytilus, Mytilusschichten 284.
Myxospongiae 48, 49.