A monograph of the British fossil corals - kreidefossilien.de

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Ixvi BRITISH FOSSIL CORALS. 2. Genus Amplexus. Sowerby, Miner. Conchol., vol. i, p. 1G5 ; Amplexus and Cyathopsis, D'Orbigny, Prodrome de Paleontol., vol. i, p. 105, 1850. Corallum resembling Zaphrentis, excepting that the septa do not extend to the centre of the visceral chamber, and leave the upper surface of the tabulae naked and smooth in that part. The sejitalfossula well characterised in the upper portion of the corallura, but not so on the lower floors. Tahul(B highly developed. Typ. sp., Amplexus coralloides, Sowerby, loc. cit., tab. Ixxii. 3. Genus Menophyllum. Corallum resembling Zaphrentis, excepting that a small septal fossula is situated on each side of the large one, and that one half of the central part of the calice is occupied by an elevated, smooth portion of the tabula, which resembles a crescent. Typ. sp., Menophyllum tenui-marginattim, nob. 4. Genus Lophophyllum. Corallum resembling Zaphrentis, excepting that a crestiform columella occupies the centre of the calice, and is in continuity by one of its ends with a small septum, placed in the middle of the septal fossula, and by the other end with the opposite primary septum. Typ. sp., Lophophyllum Konincki, nob. 5. Genus Anisophyllum. Corallum resembhng Zaphrentis, excepting by the great development of three primary septa, one of which is placed facing the septal fossula ; this /o.s'.S7//« extending much towards the centre of the calice. visceral chamber, and ceasing there to be distinct from the bottom of the Typ. sp., Anisophyllum Agassizi, nob. 6. Ge7ius Baryphyllum. Corallum very short. Calice quite superficial. A slightly developed septal fossula, corresponding to one of the branches of a cross, the three other branches of which are constituted by well-developed primary septa. The younger septa not arranged in a regular radiate circle, but inclined obliquely towards the primary ones. Typ. sp., Baryphyllum Ferneuilanum, nob..
INTRODUCTION. kvii 7. Gejius Hallia. Corallum tall, turbinate. Septa highly developed, and extending to the centre of the tabulae. No columella. One remarkably large primary septum occupying the place of the septal fossula, and the neighbom-ing septa directed towards it, so as to assume a pinnate arrangement ; the septa belonging to the two other systems presenting the usual regular radiate position. Typ. sp., Hallia insignis, nob. 8. Gejins Aulacophyllum. Corallum resembling Hallia by the mode of arrangement of the septa, but having the septal fossula not replaced by a primary septum, and affecting the form of a narrow groove, at the bottom of which the septa of the two adjoining systems meet, and even cross each other. Typ. sp., Aulacophylhtm sidcatmn ; Caninia sulcata, D'Orbigny, Prod, de Paleont., vol. i, p. \Kt. 9. Genus Trochophtllum. Corallum simple, trochoid. Calice rather shallow. Septal fossula rudimentary, and occupied by a small septum. The other scpfa thick, not denticulate, presenting a regular radiate mode of arrangement, and extending almost to the centre of the visceral chamber, where a small tabula is visible. Typ. sp., Trochophylhim Verneuili, nob. 10. Genus Hadrophylltjm. Corallum short. Calice superficial. One very large septal fossula, and three small ones, representing a cross. The radiate arrangement of the septa somewhat irregular. Typ. sp., Hadrophyllum Orhignyi, nob. 11. Genus Combophtllum. Corallum presenting the general form of a Cyclolites. A single septal fossula. Septa exsert, and regularly radiate. Typ. s^.,Combophyllum osismorum, nob. Second Tribe—CYATHOPHYLLIN^. Septal apparatus regularly radiate, and uninterrupted, or ecjually divided into four groups by four superficial septal fossida?. No true columella, but sometimes a spurious one formed by the inner edge of the septa.
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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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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 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: ; INTRODUCTION. Ixv Family XIII. CY
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.
Page 116 and 117: ; CORALS FROM THE GAULT. 03 3. Genu
Page 118 and 119: CORALS FROM THE GAULT. 65 found nea
Page 120 and 121: CX)RALS FROM THE GAULT. G7 and have
Page 122 and 123: ' Petref. : ; CORALS FROM THE GAULT
Page 124: ; 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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