A monograph of the British fossil corals - kreidefossilien.de

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liv BRITISH FOSSIL CORALS. Family VI. MADREPORID^. Corallum composite, increasing by gemmation and not by fissiparity. Ccenenckpna abundant, spongy, and reticulate. TTalls very porous, and not distinct from the coenenchyma. Septa laraellose, and well developed ; loculi free. First Tribe—MADREPORINtE. Visceral chambers divided into two equal parts by two of the principal septa, which are more developed than the others, and meet by their inner edge. 1. Genus Madrepora. Lamarck, Hist, des Anim. sans Vert., t. xi, p. 2/7, 1816. Corallum composite, forming ramified, lobate, or fasciculate masses. Coenenchyma loose, and delicately echinulate. Calices projecting, with a thick margin. No columella. Typ. sp., Madrepora muricata, Ellis and Solander, Zooph., tab. Ivii ; Madrepora abrotanoides, Lamarck, loc. cit., p. 280. Second Tribe—EXPLANARIN^. Visceral chamber presenting at least six equally developed principal septa. 2. Genus Explanaria. (Pars) Lamarck, Hist, des Anim. sans Vert., vol. ii, p. 2.54, 1816 ; Gemmipora, Blainville, Diet, des So. Nat., vol. Ix, p. 3.'52, 1830. Corallum in general foliaceous. Cmnenchyma abundant, rather dense, and delicately echinulate. Septa almost all of the same size. Columella spongy. Tj-p. sp., Explanaria crater, nob. ; Madrepora crater, Pallas, Eleucb. Zoopb., p. 332. 3. Genus Astreopora. Blainville, Diet, des Sc. Nat., vol. Ix, p. 348, 1830. Corallum massive. Ceenenchyma of a loose texture, and strongly echinulated. Septa unequally developed. No columella. Typ. sp., Astreopora myriophthalma, Blainville, loc. cit. ; Astrea nujriophthalma, Lamarck, op. cit., p. 260.
INTRODUCTION. Iv Family VII. PORITIDiE. Coralliim entii'ely composed of reticulate sclereuchyma. Septal apparatus well developed, but never lamellar, and composed only of series of styliform processes or trabiculas, constituting by their junction a sort of irregular trellis. IFalls presenting the same structure, and not distinct from the coenenchyma. Visceral chamber containing some small dissepiments, but never divided by tabulae. First Tribe—PORITIN^. Coenenchyma I'udimentary, or not existing. 1. Genus Porites. /Pars) Lamarck, Hist, des An. sans Vert., t. ii, p. 267, 1816 ; Milne Edw. and J. Haime, Comptes rend., t. xxk, p. 258, 1849. Corallum composed of sclereuchyma, very ii-regularly reticulated. Calices shallow. 8e2)ta not numerous, rudimentary, and appearing to be represented by a circle oi pali, the apex of which is papillose. Typ. sp.. Pontes conglomerata, Lamarck, loc. cit., p. 269. 2. Genus Lithar^a. Milne Edw. and J. Haime, Comptes rend., t. xxix, p. 258, 1849. Sclereuchyma very irregularly reticulated. Calices not very deep. Cohmiella spongy. Pali rudimentary, or not existing. Septa well developed, particularly towards the wall. Typ. sp., Litharcea Websteri, nob. ; Astrea Websteri, Bowerbank, Mag. of Nat. Hist., new series, vol. iv, p. 27, figs. A, B, 1840. 3. Genus Coscinar.ea. Milne Edw. and J. Haime, Comptes rend, de TAc. des Sc, t. xxvii, p. 496, 1848. Corallum of a dense structure. Calices rather deep ; neither pah, nor distinct walls. Septa crowded, very regularly fenestrate, and with crispate edges, passing without any interruption from one visceral chamber to the adjacent one. No epitheca. Typ. sp., Coscinarcea Botta, Milne Edw. and J. Haime, Ann. des Sc. Nat., 3"' serie, vol. ix, tab. v, fig. 2.
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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
Page 13 and 14: INTRODUCTION. iii centre of the ram
Page 15 and 16: 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
Page 25 and 26: ; INTRODUCTION. xv formed by proces
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: INTRODUCTION. liii 7. Genus Stephan
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 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.
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CORALS FROM THE GAULT. CHAPTER VI.
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; CORALS FROM THE GAULT. 03 3. Genu
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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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A monograph of the British fossil corals - kreidefossilien.de

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