A monograph of the British fossil corals - kreidefossilien.de

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Ixx BRITISH FOSSIL CORALS. 22. Genus Clisiophtllum. {Pars) Dana, Exploring Exped., Zoophytes, p. 361, 1816. Corallum simple, turbinate. Septa well developed, and rising towards the centre of the calice so as to form a spurious columella, but not twisted. Typ. sp., CUsiophyllum Danianum, nob. 23. Gemts Aulophyllum. Corallum simple. Septa well developed. A double mural investment; the interior wall dividing the visceral chamber into two portions—one central and columnar, the other exterior and annular. No columella. Tabulce but little developed. Typ. sp., Aulophyllum prolapsum ; CUsiophyllum prolapsum, M'Coy, in Ann. and Mag. of Nat. Hist., '2d series, vol. iii, p. 3. 24. Genus Acervularia. Schweigger, Ilaiidb. der Naturg., p. 418, 1820. Corallum composite, increasing by calicular gemmation. Corallitcs provided with a double mural investment; the inner wall disposed as in the preceding genus. Septal apparatus well developed between the outer and the inner walls, but much less so in the central area. No columella. Tahulce not well developed. Typ. sp., Acervularia Rcemeri ; Astrea Hennahi, Roemer, Verst. der Hartzgeb., tab. ii, fig. 13 (not Lonsdale). 25. Genus Strombodes. (Pars) Schweigger, Handb. der Naturg., p. 418, 1820; Goldfuss, Petref. Germ., vol. i, p. 62, 1826; Acervularia, Lonsdale, Sil. Syst., p. 689, 1S39; ArachnophyUum, Dana, Zoopb., p. 360, 1846; Strombodes and Actinocyathus, D'Orbigny, Prod, de Paleont. stratigr., vol. i, p. 107, 1849. Corallum composite, increasing by calicular gemmation. Corallitcs constituted principally by a scries of superposed, invaginated, infundibuliform tahulce, united by ascending trabicula^, so as to form a columnar mass. Calices pentagonal, well circumscribed, and completely covered with the septal radii. Outer icalls not well developed ; the inner mural investment rudimentary. Typ. sp., Htromhodes pentagmms, Goldf., Petref. Germ., vol. i, tab. .\xi, fig. 3. 26. Genus Phillipsastrea. D'Orbigny, Note sur des Polypiers fossiles, p. 2, 1849. Corallum composite, resembling Strombodes, but differing from them by the septal
INTRODUCTION. Ixxi or costal radii of the neighbouring coralHtes, being confluent, and consequently the calices not being definitely circumscribed. No exterior ivalls ; the interior mural investment well characterised. The centre of the tahulcB presenting a columellarian tubercle. Typ. sp., PhiUipsustrea Tlennahi, D'Orbigny, loc. cit. ; Astrea Hennahi, Lonsdale, in Geol. Trans., 2d series, vol. v, tab. Iviii, fig. 3. 27. Genus Eridophyllum. Corallum composite, and increasing by lateral gemmation. CoralUtes tall, cyiindroid, and provided with a thick epitheca, which gives rise to a vertical series of short and thick subradiciform productions that extend to the next individual and unite them together. Tabula well developed, and occupying the central area circumscribed by the inner wall. Septal apparatus occupying the annular area situated between the outer and inner mural investment, but not extending into the inner or central area. Typ. sp., Eridophyllum seriale, nob. Third Tribe—LITHODENDRONIN^. Axis of the visceral chamber of the corallites occupied by a styliform or lamellar columella. 28. Genus Lithodendron. Phillips, Geol. of Yorkshire, vol. ii, p. 200, 1835 (but not Lilhodendron of Schweigger, which is not an admissible genus); Siphonodendron, M'Coy, in Ann. and Mag. of Nat. Hist., 2d series, vol. iii, 1849. Corallum composite, arborescent, or massive. Corallites cylindrical or prismatic- Columella styliform, compact. Sejjta well developed, but not reaching to the columella. Tabula well developed. Interior wall rudimentary. Typ. sp., Lithodendron irregulare, Phillips, loc. cit., pi. ii, figs. 14, 15. 29. Genus Nematophyllum. Nematophylhtm and Stylaxis, M'Coy, loc. cit., 1849. Corallum composite, massive. Corallites prismatic, with a well-developed interior wall. Columella lamellar. Septa well developed, and united by transverse dissepiments, which extend to the columella, but do not constitute true tabulae. Exterior area vesicular. Typ. sp., Nematopliylbim arachnoideum, M'Coy, loc. cit., p. 16.
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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
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INTRODUCTION. vii in which the mult
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INTRODUCTION. ix Sub-class 1. CORAL
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; INTRODUCTION. xi Sub-order 1. ZOA
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INTRODUCTION. xiii 3. Genus Acantho
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; INTRODUCTION. xv formed by proces
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; 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
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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 and 68: . INTRODUCTION. Ivii Second Tribe
Page 69 and 70: INTRODUCTION. lix 4. Genus Fistulip
Page 71 and 72: INTRODUCTION. hi but much shorter,
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: INTRODUCTION. hix 17. Genus Gonioph
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.
Page 116 and 117: ; CORALS FROM THE GAULT. 03 3. Genu
Page 118 and 119: CORALS FROM THE GAULT. 65 found nea
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Page 122 and 123: ' Petref. : ; CORALS FROM THE GAULT
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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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