The Ancient Life History of the Earth / A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science

by Henry Alleyne Nicholson

Baculites, [273]; anceps, [274].
Bagshot and Bracklesham Beds, [287].
Bakewellia, [198].
Balœna, [315].
Bala Group, [93], [94].
Bala Limestone, [93].
Balanidœ, [267].
Banksia, [262], [308].
Barbadoes Earth, [33].
Barnacles, [267].
Bath Oolite, [227].
Bats, [304], [322].
Bears, [330], [359].
Beaver, [322], [336].
Beetles, [182], [311].
Belemnitella mucronata, [275].
Beleminites, [214], [240], [274]; canaliculatus, [241].
Belemnitidœ, [240], [285].
Belemnoteuthis, [240].
Belinurus, [179].
Bellerophon, [111], [129], [148], [186]; Argo, [111].
Belodon, [218]; Carolinensis, [219].
Belosepia, [295].
Beloteuthis subcostata, [239], [240].
Bembridge Beds, [288].
Beryx, [276]; Lewesiensis, [276].
Beyrichia, [107]; complicata, [107].
Bird's-eye Limestone, [95], [96].
Birds, of the Trias, [222]; of the Jurassic, [251-253]; of the Cretaceous, [281], [282]; of the Eocene, [297]; of the Post-Pliocene, [345-348].
Bison priscus, [356].
Bituminous Schists of Caithness, [36].
Bivalves (see Lamellibranchiata).
Black-lead (see Graphite).
Black-River Limestone, [95], [96].
Blastoidea, [176]; of the Devonian, [143]; of the Carboniferous, [176].
Boidœ, [296].
Bolderberg Beds, [307].
Bone-bed, of the Upper Ludlow, [116]; of the Trias, [224].
Bony Fishes (see Teleostean Fishes).
Bos primigenius, [356]; taurus, [356].
Boulder-clay, [337].
Bourgueticrinus, [266].
Bovey-Tracy Beds, [305], [309].
Brachiopoda, [125]; of the Cambrian rocks, [87]; of the Lower Silurian, [108-110]; of the Upper Silurian, [125-128]; of the Devonian, [147], [148]; of the Carboniferous, [184-186]; of the Permian, [198]; of the Trias, [211]; of the Jurassic, [234]; of the Cretaceous, [268]; of the Eocene, [292].
Brachymetopus, [179].
Brachyurous Crustaceans, [180], [197].
Bradford Clay, [227].
Breaks in the Geological and Palæontological record, [44-52].
Breccia, [19].
Brick-earths, [339].
Bridlington Crag, [325], [326], [336].
Brittle-stars (see Ophiuroidea).
Bronteus, [145].
Brontotheridœ, [316].
Brontotherium ingens, [316].
Brontozoum, [206].
Buccinum, [237].
Bucklandia, [230].
Bulimus, [294].
Bunter Sandstein, [203], [204], [206].
Butterflies, [233], [311].
Byssoarca, [198].

Cainozoic (see Kainozoic).
Calamaries, [239].
Calamites, [165], [166], [196]; cannœformis, [166].
Calcaire Grossier, [287], [288].
Calcareous rocks, [20-32]; Tufa, [21].
Calciferous Sand-rock, [95], [96].
Calveria, [178].
Calymene, [108], [123]; Blumenbachii, [107].
Camarophoria globulina, [198].
Cambrian period, [77-90]; rocks of, in Britain, [77], [78]; in Bohemia, [79]; in North America, [79]; life of, [80-90].
Camelopardalidœ, [317].
Camels, [317], [354].
Canis lupus, [336]; Parisiensis, [304].
Caradoc rocks, [93], [94], [96].
Carbon, origin of, [36].
Carboniferous Limestone, [157], [158].
Carboniferous period, [157-192]; rocks of, [157-160]; life of, [160-191].
Carboniferous Slates of Ireland, [135], [158], [159].
Carcharias, [275].
Carcharodon, [295], [312]; productus, [313].
Cardinia, [235].
Cardiocarpon, [137].
Cardiola, [128]; fibrosa, [128]; interrupta, [128].
Cardita, [213], [292]; planicosta, [292], [293].
Cardium, [292]; Rhœticum, [211], [212].
Caribou, [355].
Carnivora, of the Eocene, [304]; of the Miocene, [322]; of the Pliocene, [330], [331]; of the Post-Pliocene, [359-361].
Caryocaris, [107], [108].
Caryocrinus ornatus, [106].
Castor fiber, [336].
Castoroides Ohioensis, [361].
Catastrophism, theory of, [3].
Catopterus, [214].
Cauda-Galli Grit, [135], [137].
Caulopteris, [136], [164].
Cave-bear, [360].
Cave-deposits, [337], [339], [341-344].
Cave-hyæna, [360].
Cave-lion, [361].
Caves, formation of, [341]; deposits in, [342].
Cavicornia, [317].
Cement-stones, [31].
Cephalaspis, [152].
Cephalopoda, of the Cambrian period, [88]; of the Lower Silurian, [111-114]; of the Upper Silurian, [130]; of the Devonian, [149]; of the Carboniferous, [186], [187]; of the Permian, [199]; of the Trias, [212]; of the Jurassic, [237-240]; of the Cretaceous, [272-275]; of the Eocene, [294]; of the Miocene, [312].
Ceratiocaris, [108].
Ceratites, [212-214]; nodosus, [212].
Ceratodus, [214]; altus, [214]; Fosteri, [214]; serratus, [214].
Ceriopora, [145]; Hamiltonensis, [146].
Cerithium, [213], [293]; hexagonum, [294].
Cervidœ, of the Miocene period, [314]; of the Pliocene, [329]; of the Post-Pliocene, [354], [355].
Cervus, [317]; capreolus, [336], [354]; elaphus, [336], [355]; megaceros, [354], [355]; tarandus, [354].
Cestracion Philippi, [188], [255].
Cestracionts, of the Devonian, [154]; of the Carboniferous, [188]; of the Permian, [199]; of the Trias, [214]; of the Jurassic, [242]; of the Cretaceous, [275].
Cetacea, [299]; of the Eocene, [299]; of the Miocene, [315].
Cetiosaurus, [249], [25].
Chœropotamus, [302].
Chœtetes, [105], [173]; tumidus, [174].
Chain-coral, [119].
Chalk, [259]; structure of, [21-23]; Foraminifera of, [22], [263]; origin of, [23]; with flints, [253]; without flints, [259].
Chama, [236].
Chamœrops, [308]; Helvetica, [309].
Chazy Limestone, [95], [96].
Cheiroptera, of the Eocene, [304], [305]; of the Miocene, [322].
Cheirotherium, [215], [216].
Cheirurus, [108], [123]; bimucronatus, [124].
Chelichnus Duncani, [202].
Chelone Benstedi, [280]; planiceps, [251].
Chelonia, of the Permian, [202]; of the Jurassic, [251]; of the Cretaceous, [280]; of the Eocene, [296]; of the Miocene, [213].
Chemnitzia, [213].
Chemung Group, [135], [136], [137].
Chert, [34].
Chillesford Beds, [325], [326], [336].
Chonetes, [127], [147], [184]; Hardrensis, [185].
Chonophyllum, [173].
Cidaris, [266].
Cincinnati Group, [95], [96].
Cinnamomum polymorphum, [309].
Cinnamon-trees, [262], [290], [306], [308], [309].
Cladodus, [188].
Claiborne Beds, [289].
Clathropora, [145]; intertexta, [146].
Clay, [20]; Red, origin of, [35].
Clay-ironstone, nodules of, [31].
Cleidophorus, [111].
Cleodora, [312].
Climacograptus, [101], [119].
Clinton Formation, [116], [117].
Clisiophyllum, [173].
Clupeidœ, [276].
Clymenia, [149]; Sedgwickii, [149].
Coal, [36]; structure of, [163]; mode of formation of, [162].
Coal-measures, [159], [160]; mineral characters of, [159]; mode of formation of, [160], [162]; plants of, [162-170].
Coccoliths, [261].
Coccosteus, [151], [152].
Cochliodus, [188]; cantortus, [189].
Coleoptera, [182], [311].
Colossochelys Atlas, [313].
Columnaria, [105]; alveolata, [105].
Comatula, [232], [266].
Conclusions to be drawn from Fossils, [52-56].
Concretions, calcareous, [29]; phosphatic, [31]; of clay-ironstone, [31]; of manganese, [31].
Conglomerate, [18].
Coniferœ, [262]; wood of, [13]; of Devonian period, [138]; of the Carboniferous, [170]; of the Permian, [196]; of the Trias, [208]; of the Jurassic period, [230].
Coniston Flags and Grits, [116].
Connecticut Sandstones, footprints of, [222], [346].
Conocoryphe Mathewi, [85]; Sultzeri, [85].
Conodonts, [114], [131].
Constellaria, [105].
Constricting serpents of the Eocene, [296].
Contemporaneity of strata, [44-46].
Continuity, theory of, [5-7].
Conularia, [111], [129], [148], [186], [199], [237]; ornata, [149].
Conulus, [186].
Conus, [293].
Coomhola Grits, [158], [159].
Coprolites, [31], [243].
Coralline Crag, [324].
Corallines, [25].
Corallium, [311].
Coral-rag, [227], [229], [230].
Coral-reefs, [24-26].
Coral-rock, [26].
Coral-sand, [19], [26].
Corals, [103]; of the Lower Silurian, [104]; of the Upper Silurian, [119]; of the Devonian, [140-143]; of the Carboniferous, [172-175]; of the Permian, [197]; of the Trias, [209]; of the Jurassic, [230], [231]; of the Cretaceous, [266]; of the Eocene, [292]; of the Miocene, [311].
Corbula, [235].
Cornbrash, [227], [229].
Corniferous Limestone, [135], [137].
Cornulites, [123].
Cornus, [262].
Coryphodon, [300].
Cowries, [259], [271], [293].
Crabs, [180], [197], [233], [267].
Crag, Red, [324]; White, [324]; Norwich, [324]; Antwerp, [325]; Bridlington, [325]; Coralline, [324].
Crania, [110], [127], [198], [269]; Ignabergensis, [269].
Crassatella, [292].
Crepidophyllum, [142]; Archiaci, [142].
Cretaceous period, [256-283]; rocks of, in Britain, [257-259]; in North America, [260], [261]; life of, [261-283].
Crinoidal Limestone, [24], [25].
Crinoidea, [120]; of the Cambrian, [82]; of the Lower Silurian, [105]; of the Upper Silurian, [120-122]; of the Devonian, [143]; of the Carboniferous, [175]; of the Permian, [197]; of the Triss, [209]; of the Jurassic, [231]; of the Cretaceous, [266]; of the Eocene, [292].
Crioceras, [273]; cristatum, [274].
Crocodilia, [218]; of the Trias, [218]; of the Jurassic, [251]; of the Cretaceous, [280]; of the Eocene, [296], [297].
Cromer Forest-bed, [336].
Crossozamites, [230].
Crotalocrinus, [122].
Crustacea, of the Cambrian, [83-87]; of the Lower Silurian, [107], [108]; of the Upper Silurian, [123-125]; of the Devonian, [144]; of the Carboniferous, [178-181]; of the Permian, [197]; of the Trias, [210]; of the Jurassic, [233]; of the Cretaceous, [267].
Cryptogams, [164], [262].
Ctenacanthus, [188].
Ctenodonta, [111].
Cupressus, [262].
Cursores, [297], [346].
Cuttle-fishes (see Dibranchiate Cephalopods).
Cyathocrinus, [175].
Cyathophyllum, [119], [142], [173].
Cycadopteris, [262].
Cycads, [208]; of the Carboniferous, [170]; of the Permian, [197]; of the Trias, [208]; of the Jurassic, [230]; of the Cretaceous, [261].
Cyclas, [268].
Cyclonema, [129].
Cyclophthalmus senior, [181].
Cyclostoma, [294]; Arnoudii, [294].
Cynodraco, [220].
Cyprœa, [271], [293]; elegans, [393].
Cypress, [262], [308], [311].
Cypridina, [145].
Cypridina Slates, [145].
Cyrena, [235], [268], [292].
Cyrtina, [213], [214].
Cyrtoceras, [114].
Cystiphyllum, [119], [142], [173]; vesiculosum, [141].
Cystoidea, [105-107]; of the Cambrian, [82]; of the Lower Silurian, [106]; of the Upper Silurian, [120].

Dachstein Beds, [205], [206].
Dadoxylon, [138], [170].
Daonella, [211]; Lommelli, [211].
Dasornis Londinensis, [297].
Decapod Crustaceans, [180].
Deer, [317], [329], [354].
Deinosauria, [248]; of the Trias, [221]; of the Jurassic, [248-251]; of the Cretaceous, [277-279].
Deinotherium, [319], [320]; giganteum, [320].
Denbighshire Flags and Grits, [115].
Dendrocrinus, [82].
Dendrograptus, [100].
Desmids, [138], [262].
Devonian Formation, [133-136]; origin of name, [133]; relation to Old Red Sandstone, [133], [134]; of Devonshire, [134]; of North America, [135], [136]; life of, [136-156].
Diadema, [266].
Diatoms, [33]; of the Devonian, [138]; of the Carboniferous, [164]; of flints, [261]; of Richmond Earth, [33], [307].
Dibranchiate Cephalopods, [112]; of the Trias, [212]; of the Jurassic, [239-241]; of the Cretaceous, [274], [275]; of the Eocene, [294]; of the Miocene, [312].
Diceras, [236]; arietina, [236].
Diceras Limestone, [227], [236].
Dichobune, [303].
Dichograptus, [101]; octobrachiatus, [101].
Dicotyledonous plants, [262].
Dicotyles antiquus, [317].
Dicranograptus, [101], [119].
Dictyonema, [89], [100], [119]; sociale, [89].
Dicynodon, [220]; lacerticeps, [221].
Didelphys, [254], [315]; gypsorum, [299].
Didus ineptus, [348].
Didymograptus, [101]; divaricatus, [102].
Dikellocephalus Celticus, [84]; Minnesotensis, [84].
Dimorphodon, [247].
Dinichthys, [153]; Hertzeri, [151].
Ditoceras, [303]; mirabilis, [304].
Dinocerata, [303], [304].
Dinophis, [296].
Dinornis, [346], [348]; elephantopus, [346]; giganteus, [346].
Dinosauria (see Deinosauria).
Dinotherium (see Deinotherium).
Diphyphyllum, [142].
Diplograptus, [101], [119]; pristis, [102].
Dipnoi, [153], [187], [215].
Diprotodon, [348], [349]; australis, [348].
Diptera, [311].
Discina, [87], [110], [127], [198].
Discoidea, [266]; cylindrica, [267].
Dithyrocaris, [179]; Scouleri, [180].
Dodo, [348].
Dog whelks.
Dolomite, [293].
Dolomitic Couglomerate of Bristol, [201], [219].
Dolphins, [299], [315].
Dorcatherium, [317].
Downton Sandstone, [116].
Draco volans, [245].
Dragon-flies, [311].
Drift, Glacial, [337].
Dremotherium, [317].
Dromatherium sylvestre, [223], [224].
Dryandra, [262].
Dryopithecus, [323].
Dugougs, [299].

Echinodermata, of the Cambrian, [82]; of the Lower Silurian, [105]; of the Upper Silurian, [120]; of the Devonian, [143]; of the Carboniferous, [175]; of the Permian, [197]; of the Trias, [209]; of the Jurassic, [231]; of the Cretaceous, [266]; of the Eocene, [292].
Echinoidea, [177]; of the Upper Silurian, [120]; or the Devonian, [143]; of the Carboniferous, [177]; of the Permian, [197]; of the Jurassic, [233]; of the Cretaceous, [266].
Edentata, [349]; of the Eocene, [299]; of the Miocene, [315]; of the Post-Pliocene, [349-353].
Edriocrinus, [122].
Eifel Limostone, [135].
Elasmobranchii (See Placoid Fishes).
Elasmosaurus, [276].
Elephants, [319], [320], [330].
Elphas, [320]; Americanus, [357]; antiquus, [329], [330], [336], [341], [357]; Falconeri, [359]; Melitensis, [359]; meridionalis, [329], [330], [336], [357]; planifrons, [321]; primigenius, [339], [341], [357], [358].
Elk, [354]; Irish, [354], [355].
Ellipsocephalus Hoffi, [84].
Elotherium, [317].
Emydidœ, [296].
Emys, [280].
Enaliosaurians, [219], [242], [276].
Encrinital warble, [24].
Encrinurus, [123].
Encrinus liliiformis, [209], [210].
Endogenous plants, [261].
Endophyllum, [173].
Endothyra, [171]; Bailyi, [172].
Engis skull, [364].
Entomis, [145].
Entomoconchus Scouleri, [179], [180].
Eocene period, [284]; rocks of, in Britain, [287], [288]; in France, [288]; in North America, [288], [289]; life of, [289, 305].
Eocidaris, [197].
Eophyton, [80]; Linneanum, [81].
Eophyton Sandstone, [79].
Eosaurus Acadianus, [191].
Eozoic rocks, [67].
Eozoön Bavaricum, [76].
Eozoön Canadense, [68], [76]; appearance of, in mass, [69]; minute structure of, [70], [71]; affinities of, with Foraminifera, [71-74].
Ephemeridœ, [145], [183].
Equisetaceœ, [166].
Equisetites, [196].
Equidœ, [301], [302], [316], [328].
Equus, [302]; caballus, [354]; excelsus, [328]; fossilis, [336], [354].
Eridophyllum, [142].
Eryon arctiformis, [233], [234].
Eschara, [267].
Escharidœ, [267].
Escharina, [267]; Oceani, [268].
Estheria, [145], [179], [210]; tenella, [180].
Eucalyptocrinus, [122]; polydactylus, [122].
Eucladia, [120].
Euomphalus, [128], [148], [186], [199], [213]; discors, [129].
Euplectella, [265].
Euproöps, [179].
European Bison, [356].
Eurypterida, [124], [179]; of the Upper Silurian, [124]; of the Devonian, [144].
Even-toed Ungulates, [300], [317], [354].
Exogenous plants, [266].
Exogyra, [236]; virgula, [236].
Extinction of species, [57], [58].

Fagus, [262].
Faluns, [306].
Fan-palms, [308].
Favistella, [105].
Favostites, [119], [142]; Gothlandica, [143]; hemisphœrica, [143].
Faxöe Limestone, [259], [286].
Felis angustus, [330]; leo, [361]; spelœa, [361].
Fenestella, [108], [125], [145], [184], [198], [210]; cribrosa, [146]; magnifica, [146]; retiformis, [198].
Fenestellidœ, [183].
Ferns, of the Devonian, [136]; of the Carboniferous, [164]; of the Permian, [196]; of the Trias, [207]; of the Jurassic, [229]; of the Cretaceous, [261].
Fig-shells, [293].
Fishes, [150]; of the Upper Silurian, [130], [131]; of the Devonian, [150-155]; of the Carboniferous, [187], [188]; of the Permian, [199], [200]; of the Trias, [214], [215]; of the Jurassic, [240-242]; of the Cretaceous, [275], [276]; of the Eocene, [295], [296]; of the Miocene, [312], [313].
Flint, [33]; structure of, [34]; origin of, [34]; organisms of, [34], [138], [263]; of Chalk, [34], [259], [261]. Human implements associated with bones of extinct Mammals, [363], [364].
Flora (see Plants).
Footprints of Cheirotherium, [215], [216]; of the Triassic sandstones of Connecticut, [222].
Foraminifera, [22-24], [71-74]; of the Cambrian, [82]; of the Lower Silurian, [98]; of the Carboniferous, [171], [172]; of the Permian, [197]; of the Trias, [209]; of the Jurassic, [230]; of the Cretaceous, [21], [22], [263]; of the Eocene, [290]; of the Miocene, [311]; of the Post-Pliocene, [338]; of Atlantic ooze, [22], [23]; as builders of limestone, [24], [25], [28]; as forming green sands, [34].
Forbesiocrinus, [175].
Forest-bed of Cromer, [336].
Forest-bugs, [311].
Forest-marble, [227].
Formation, definition of, [18]; succession of, [42].
Fossiliferous rocks, [14-37]; chronological succession of, [37-44].
Fossilisation, processes of, [11-14].
Fossils, definition of, [11]; distinctive, of rock-groups, [38]; conclusions to be drawn from, [52-56]; biological relations of, [57-61].
Foxes, [304].
Fringe-finned Ganoids, [153].
Fucoidal Sandstone, [79], [80].
Fucoids, [80], [97].
Fuller's Earth, [227], [229].
Fusulina, [172]; cylindrica, [172].
Fusus, [237], [293].

Galeocerdo, [312].
Galerites, [266]; albo-galerus, [267].
Galestes, [254].
Ganoid Fishes, [150]; of the Upper Silurian, [130]; of the Devonian, [150-153]; of the Carboniferous, [187], [188]; of the Permian, [199]; of the Trias, [214]; of the Jurassic, [241]; of the Cretaceous, [275]; of the Eocene, [292], [293].
Gaspé Beds, [134].
Gasteropoda, of the Cambrian, [88]; of the Lower Silurian, [111]; of the Upper Silurian, [128], [129]; of the Devonian, [148]; of the Carboniferous, [186]; of the Permian, [199]; of the Trias, [213]; of the Jurassic, [236], [237]; of the Cretaceous, [271]; of the Eocene, [292], [293].
Gastornis Parisiensis, [297].
Gault, [257], [258].
Gavial, [251], [297].
Genesee Slates, [135].
Geological record, breaks in the, [47-52].
Giraffes, [317].
Glacial period, [335]; deposits of, [337], [338].
Glandulina, [311].
Glauconite, [34], [74], [98], [263].
Glauconome, [126], [184]; pulcherrima, [183].
Globe Crinoids (see Cystoidea).
Globigerina, [22], [23], [264].
Glutton, [360].
Glyptaster, [120].
Glyptocrinus, [122].
Glyptodon, [351], [352]; clavipes, [352].
Glyptolœmus, [153].
Goats, [318].
Goniatites, [130], [149], [187], [214]; Jossœ, [187].
Gorgonidœ, [292].
Grallatores, [297].
Graphite, [36]; mode of occurrence of, [36], [68]; origin of, [36].
Graptolites, [89], [100]; structure of, [100]; of the Lower Silurian, [100-103]; of the Upper Silurian, [118], [119].
Great Oolite, [227], [229]; Upper, [257], [258], [260].
Greenland. Miocene plants of, [311].
Greensand, Lower, [257].
Green sands, origin of, [44], [263].
Grevillea, [262], [308].
Griffithides, [197].
Grizzly Bear, [359].
Groond Sloths, [351].
Gryphœa, [236]; incurva, [236].
Guelph Limestone, [117].
Gulo luscus, [360]; spelœus, [360].
Guttenstein Beds, [205], [206].
Gymnospermous Exogens, [262].
Gypsum, [32], [193], [204].
Gyracanthus, [188].
Gyroceras, [130].

Hadrosaurus, [278].
Halitherium, [299].
Hallstadt Beds, [205], [206].
Halobia, [211].
Halysites, [119]; agglomerata, [120]; catenularia, [120].
Hamilton formation, [135], [137].
Hamites, [273]; rotundus, [274].
Haplophlebium Barnesi, [182].
Harlech Grits, [78], [79].
Harpes, [108], [123]; ungula, [124].
Hastings Sands, [257].
Headon and Osborne series, [287], [288].
Heart-urchins, [311].
Heliolites, [105], [119], [266].
Heliophyllum, [142], [173]; exiguum, [141].
Helix, [294].
Helladotherium, [317].
Helopora fragilis, [126].
Hemicidaris crenularis, [233].
Hemiptera, [311].
Hemitrochiscus paradoxus, [197].
Hempstead Beds, [306].
Hesperornis, [281], [282]; regalis, [282].
Heteropoda, [111]; of the Lower Silurian, [111]; of the Upper Silurian, [129]; of the Devonian, [148]; of the Carboniferous, [186].
Hinnites, [213].
Hipparion, [301], [302], [316], [317], [328].
Hippopodium, [235].
Hippopotamus, [302]; amphibus, [317], [329]; major, [329], [336], [354]; Sivalensis, [318].
Hippothoa, [108].
Hippurite Marble, [270].
Hippurites, [270]; Toucasiana, [271].
Hippuritidœ, [270], [285].
Histioderma, [82].
Hollow-horned Ruminants, [317].
Holocystis elegan, [266].
Holopea, [129]; Subconica, [129].
Holopella, [129], [213]; obsoleta, [129].
Holoptychius, [153]; nobilissimus, [154].
Holostomatous Univalves, [236], [293].
Holothurians, [120].
Holtenia, [264].
Homacanthus, [188].
Homalonotus, [123], [145]; armatus, [144].
Homo diluvii testis, [313].
Honeycomb Corals, [142].
Hoofed Quadrupeds, [300].
Hudson River Group, [95].
Huronian Period, [75], [76]; rocks of, [75].
Hyœna crocuta, [360]; spelœa, [360]; Hipparionum, [330].
Hyœnictis, [322].
Hyœnodon, [304].
Hyalea D'Orbignyana, [312].
Hybodus, [214], [242], [275].
Hydractinia, [265].
Hydroid Zoophytes, [103], [265].
Hymenocaris vermicauda, [84], [88].
Hymenophyllites, [165].
Hymenoptera, [311].
Hyopotamus, [302].
Hyperodapedon, [218].
Hypsiprymnopsis, [224].
Hystrix primigenius, [322].

Ichthyocrinus lœvis, [122].
Ichthyornis, [281], [282]; dispar, [281], [282].
Ichthyosaurus, [242], [243], [276]; communis, [242].
Ictitherium, [322].
Iguana, [277].
Iguanodon, [277], [278]; Mantelli, [278].
Ilfracombe Group, [134].
Illœnus, [108], [123].
Imperfection of the palæontological record, [50], [51].
Inferior Oolite, [227], [229].
Infusorial Earth, [33].
Inoceramus, [269]; sulcatus, [270].
Insectivora, of the Eocene, [305]; of the Miocene, [322].
Insects, of the Devonian, [145]; of the Carboniferous, [182]; of the Jurassic, [233]; of the Miocene, [311], [312].
Irish Elk, [354], [355].
Ischadites, [99], [118].
Isopod Crustaceans, [84].

Jackson Beds, [289].
Jurassic period, [226]; rocks of, [226-229]; life of, [229-255].

Kaidacarpum, [230].
Kainozoic period, [44], [284-287].
Kangaroo, [348].
Kelloway Rock, [227].
Kent's Cavern, deposits in, [343].
Keuper, [204], [206].
Kimmeridge Clay, [227], [229].
King-crabs, [84], [124], [125], [179].
Koninckia, [213], [214].
Kössen Beds, [205], [206].