A monograph of the British fossil corals - kreidefossilien.de

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. Iviii BRITISH FOSSIL CORALS. instead of occupying only the one or two loculi. It is also to be remembered that the septal apparatus, although more or less rudimentary, has the same general mode of arrangement as in the preceding sub-orders, and never presents the crucial character which we shall find in Zoantharia rugosa This section comprises four families : Favositidse, Milleporidae, Seriatoporidse, and Thecidae. Family VIII. MILLEPORID^. Corallum principally composed of a very abundant coenenchyma, distinct from the walls of the corallites, and of a tubular or cellular structure. Septa not numerous ; tabular numerous, and well formed. 1. Genus Millepora. {Pars) Lamarck, Syst. des An. sans Vert., p. 373, 1801 ; Palmipora, Blainville, Diet, des Sc. Nat., t. Ix, p. 3.'")6, 1830. Corallum of various forms, but more or less foliaceous. Coenenchyma extremely abundant, of an irregular subtubular structure. Calices of very different dimensions in the same corallum. No distinct septa. Tabula horizontal. Typ. sp., Millepora alcicorrds, Lamarck, loc. cit. ; Milne Edw., Atlas du Regne Anim. de Cuvier, Zooph., tab. Ixxxix, fig. 1. 2. Genus Heliopora. {Pars) Blainville, Diet, des Sc. Nat., vol. Ix, p. 357, 1830; Dana, Zooph., p. 539, 1846. Corallum lobulate, somewhat massive, and differing from MiUepora by the regular tubular structure of the coenenchyma, and the existence of small but distinct septa. Typ. sp., Heliopora ccertdea, Blainville, loc. cit., p. 357. 3. Genus Hbliolites. Dana, Zooph., p. 541, 1846 ; Palesopora, M'Coy, Ann. and Mag. of Nat. Hist., 2d series, vol. iii, p. 129, 1849; Geoporites, D'Orbigny, Prodr. de Palseont. stratif. Uuivers., t. i, p. 49, 1849. Corallum sub-globose. Canenchjma regularly tubular. Septal radii advancing almost to the centre of the visceral chamber on the upper surface of the tabulce, which are horizontal. Typ. sp., Heliolites pyriformis, Dana, loc. cit., p. 542 ; Heliolite pyriforme, etc., Guettard, Mem. sur les Sc. et les Arts, vol. Hi, pi. x.\ii, figs. 13, 14.
INTRODUCTION. lix 4. Genus Fistulipora. M'Coy, Ann. and Mag. of Nat. Hist., 2d series, vol. iii, p. 130, 1849. Corallum with vesicular coeiienchyma ; thick walls and infmidibuhform tabulae. Typ. sp., Fistulipora minor, M'Coy, loc. cit., figs, a, b. 5. Ge7lUS PliASMOPORA. Milne Edw. and J. Haime, Comptes rend., t. xxix, p. 2C2, 1849. Corallum free, sub-hemispheric, with a basal plate covered with an epitheca presenting concentric folds. Calices immersed. Septa rudimentary. Tabulce horizontal. Walls thin. Ccenenchyma composed of large, vertical, radiate lamina^, united by smaller horizontal plates, and resembling much the costal cceneuchyma of the Astreidae. Typ. sp., Plasmopora petaliformis, nob. ; Porites jjetaliformis, Lonsdale, in Murchison, Sil. Syst., pi. svi, fig. 4. 6. Genus Propora. Milne Edw. and J. Haime, Comptes rend., t. xxix, p. 262, 1849. Coralliun difi'ering from the preceding genus by the calices having exsert margins ; septa being more developed, and extending outwards so as to constitute small costae. the exclusis). Typ. sp., Propora tuhulata, nob. ; Porites tuhulata, Lonsdale, SU. Syst., pi. xvi, figs. 3, 3", 3' (cseteris 7. Genus Axopora. Corallum composite, incrusting, and forming thin expansions, which are often superposed. CcenencJiipna abundant, find forming irregular ridges between the calices, which are small and deep. Sejjta rudimentary. Columella well developed, fasciculate, and expanding at its passage through each of the tabulae. Typ. sp., Axcpora pyriformis, nob. ; Geodia pyriformis, Michelin, Icon., tab. xlvi, fig. 2. 8. Genus Lobopora. Corallum having the same structure as in the preceding genus, but forming large, thick, foliaceous expansions, the two smfaces of which are covered with calices. Typ. sp., Lobopora Solanderi, nob. ; Palmipora Solanderi, Michelin, op. cit., tab. xlv, fig. 9.
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THE PALiEONTOGRAPHICAL SOCIETY. INS
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i. E. ADLJIED, PBINTr.B, BARTHOLOME
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e 7b-^,pi'? PRINTED BY C. AND .1. A
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INTRODUCTION. iii centre of the ram
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INTRODUCTION. v certain parts of th
Page 17 and 18: INTRODUCTION. vii in which the mult
Page 19 and 20: INTRODUCTION. ix Sub-class 1. CORAL
Page 21 and 22: ; INTRODUCTION. xi Sub-order 1. ZOA
Page 23 and 24: INTRODUCTION. xiii 3. Genus Acantho
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Page 27 and 28: ; INTRODUCTION. xvii IS. Genus Plat
Page 29 and 30: INTRODUCTION. xix Aberrant Group. P
Page 31 and 32: INTRODUCTION. xxi 8. Genus Amphelia
Page 33 and 34: INTRODUCTION. xxiii 3. Genus Dkndra
Page 35 and 36: INTRODUCTION. xxv 5. Genus Ccelosmi
Page 37 and 38: INTRODUCTION. xxvii in the two prec
Page 39 and 40: ; INTRODUCTION. xxix 23. Genus Pler
Page 41 and 42: ; INTRODUCTION. xxxi 30. Genus Hete
Page 43 and 44: INTRODUCTION. xxxiii 30. Genm Symph
Page 45 and 46: ;; INTRODUCTION. xxxv 44. Gentts Tr
Page 47 and 48: LNTRODUCTION. xxxvii 50. Genus Dipl
Page 49 and 50: INTRODUCTION. xxxix Section IV.—
Page 51 and 52: ; INTRODUCTION. xli 64. Genus Astro
Page 53 and 54: INTRODUCTION. xliii which thus form
Page 55 and 56: ; INTRODUCTION. xlv 79. Genus Oclan
Page 57 and 58: INTRODUCTION. xlvii 4. Genus Micbab
Page 59 and 60: INTRODUCTION. xlix 14. Genus Ctclos
Page 61 and 62: INTRODUCTION. li the sclerenchyma,
Page 63 and 64: INTRODUCTION. liii 7. Genus Stephan
Page 65 and 66: INTRODUCTION. Iv Family VII. PORITI
Page 67: . INTRODUCTION. Ivii Second Tribe
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Page 73 and 74: INTRODUCTION. Ixiii Family X. SERIA
Page 75 and 76: ; INTRODUCTION. Ixv Family XIII. CY
Page 77 and 78: INTRODUCTION. kvii 7. Gejius Hallia
Page 79 and 80: INTRODUCTION. hix 17. Genus Gonioph
Page 81 and 82: INTRODUCTION. Ixxi or costal radii
Page 83 and 84: INTRODUCTION. • Ixxiii The genera
Page 85 and 86: INTRODUCTION. Ixxv Family I. ALCYON
Page 87 and 88: INTRODUCTION. Ixxvii Second Tribe
Page 89 and 90: INTRODUCTION. Ixxix 1 7. Ge?ius Dis
Page 91 and 92: INTRODUCTION. Ixxxi 8. Genus Soland
Page 93 and 94: INTRODUCTION. Ixxxiii 3. Ge7lUS ViR
Page 95: INTRODUCTION. Ixxxv Order 3. PODACT
Page 98 and 99: CORALS OF THE UPPER CHALK. 46 towar
Page 100 and 101: CORALS OF THE UPPER CHALK. 47 Famil
Page 102 and 103: : CORALS FROIM THE UPPER CHALK. 49
Page 104 and 105: CORALS FROM THE UPPER CHALK. 51 Tho
Page 106 and 107: CORALS FROM THE LOWER CHALK. 53 CHA
Page 108 and 109: CORALS FROM THE LOWER CHALK. 55 the
Page 110 and 111: CORALS FROM THE UPPER GREENSAND. 57
Page 112 and 113: ; CORALS FROM THE UPPER GREENSAND.
Page 114 and 115: CORALS FROM THE GAULT. CHAPTER VI.
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CORALS FROM THE GAULT. 65 found nea
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CX)RALS FROM THE GAULT. G7 and have
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' Petref. : ; CORALS FROM THE GAULT
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; CORALS FROM THE LOWER GREENSAND.
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TAB. IX. CORALS FROM THE UPPER CHAL
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TAB. XI. CORALS FROM THE GAULT. Cya
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302 TABLE OF BRITISH FOSSIL CORALS.
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304 TABLE OF BRITISH FOSSIL CORALS.
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A. GENERAL INDEX;
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308 GENERAL INDEX.
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310 GENERAL INDEX.
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312 GENERAL INDEX. Dendrophyllia de
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314 GENERAL INDEX. . Halysites cate
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310 GENERAL INDEX.
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318 GENERAL INDEX.
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320 GENERAL INDEX.
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322 GENERAL INDEX. Xenia Zaphrentis
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