A monograph of the British fossil corals - kreidefossilien.de

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; xxvi BRITISH FOSSIL CORALS. 10. Genus A.X0SU11.1A. Milne Edw. and J. Haime, loc. cit., p. 261, 1848. Corallum simple, free in the adult state, tall, turbinate. Calice circular ; fossula large and deep. CohnneUa styliform, large, and sliglitly compressed. Sepia neither exsert nor crowded, delicately granulated, and all, excepting those of the youngest cyclum, cemented to the columella ; loculi deep. Walls entirely covered by a membraniform epitheca, presenting strong transverse folds, and extending to the edge of the calice. Typ. sp., Axosmilia extinctorium, Milne Edw. and J. Haime, loc. cit. ; CanjophylUa extinctorium, Michelin, op. cit., tab. ix, fig. 3*. 11. Genus Eusmilia. Milne Edw. and J. Haime, loc. cit., p. 262, 1848. Corallmn composite, cespitose, mth dichotomous or trichotomous branches, and a stem that does not thicken much by the progress of age. CoralUtes multiplying by fissiparity, becoming rapidly segregate, and not remaining disposed in series at their calicular extremity. Calices rather uTegular in form, but in general nearly cu-cular ; fossula deep. Columella of a loose lameUo-spongiate textm-e. Septa exsert, broad, thin, straight, not crowded, with thenapex strongly arched, and their surface almost smooth. Dissepiments well formed, but not very abundant. Walls naked or covered inferiorly by a shght pellicular epitheca. Cost(£ indistinct towards the basis of the corallites, but becoming sub-cristiform near the calice. Typ. sp., Eusmilia fasfiffiata, Milne Edw. and J. Haime, loc. cit., tab. y, fig. 1 ; Madrepora fastigiata, Pallas, Eleuch. Zooph., p. 301. is 12. Genus Aplosmilia. D'Orbigny MSS. Corallum composite, and having the characters of Eusmilia, excepting that the columella lamellar. Typ. sp., Jj)losmilia aspera, D'Orbigny MSS. ; Lobophyllia aspera, Michelin, Icon., tab. x.\, fig. 4 Eusmilia (?) aspera, Milne Edw. and J. Haime, loc. cit., p. 266. 13. Genus Leptosmilia. Milne Edw. and J. Haime, loc. cit., p. 267, 1848. Corallum composite, cespitose, fissiparous, and presenting the same general disposition as in the preceding genus. No coliimeUa. Septa extremely thin, crowded, broad, very slightly exsert, with their apex slightly arched, and their lateral surfaces sub-glabrous. Dissepiments very abundant. Walls very thin, plain towards the basis, and costulate near the cahces. Typ. sp., Leptosmilia ramosa, Milne Edw. and J. Haime, loc. cit., tab. vi, fig. 1. 14. Genus Thecosmilia. Milne Edw. and J. Haime, loc. cit., p. 270, 1848. CoraUum composite, cespitose, fissiparous, and affecting the same general disposition as
INTRODUCTION. xxvii in the two preceding genera. No columella. Septa closely set, not remarkably thin, slightly exsert, and granulate. Walls covered with a strong epitheca, reaching almost to the margin of the calices. Typ. sp., Thecosmilia trichotoma, Milne Edw. and J. Haime, loc. cit. ; Lithodendron trichotomum, Goldfuss, Petref. Germ., tab. xiii, fig. 6. 15. Genus Bauysmilia. Milne Edw. and J. Haime, loc. cit., p. 273, 1848. Corallmn composite, increasing by fissiparity, and forming a very thick stem, on the apex of which the corallites become distinct, and are disposed in transverse series. Columella rudimentary or not existing. Septa closely set. Walls very thick, naked, and covered vdth deUcate costal lines, which are nearly equal and granulate. Typ. sp., BarysmUia Cordieri, Milne Edw. and J. Haime, loc. cit., tab. v, fig. 4. 16. Genus Dendrosmilia. Milne Edw. and J. Haime, loc. cit., p. 274, 1848. Corallum composite, somewhat arborescent, and increasing by lateral gemmation. Corallites with large sejjta, and a spongious columella. Typ. sp., Bendrosmilia Buvaliana, Milne Edw. and J. Haime, loc. cit., p. 274. 17. Genus Stylosmilia. Milne Edw. and J. Haime, loc. cit., p. 2/5, 1848. Corallum composite, fascicidate, and increasing by lateral gemmation. Corallites tall, with a small nimiber of thick sejjta, and a styhform columella. Walls thick, with obsolete costa. Typ. sp., Stylosmilia Michelinii, Milne Edw. and J. Haime, loc. cit., p. 275, pi. vi, figs. 2, 2". 18. Genus Placophyllia. D'Orbigny MSS. Corallum composite, segregate, and increasing by gemmation, which is almost basal. Corallites cyhncMcal and low. Columella well developed. Septa probably entii'e. Walls completely covered with a membraniform epitheca, presenting thick transverse folds. Typ. sp., Placophyllia dianthus, D'Orbigny MSS. ; Lithodendron dianthns, Goldfuss, Petref. Germ., tab. xiii, fig. 8. Section II.—EUSMILIN^E CONFLUENTES. Corallum composite, and presenting no separation between the corallites, united in rows, so as to assume a meandriform disposition ; multiphcation essentially tissiparous.
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Page 13 and 14: INTRODUCTION. iii centre of the ram
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Page 19 and 20: INTRODUCTION. ix Sub-class 1. CORAL
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Page 29 and 30: INTRODUCTION. xix Aberrant Group. P
Page 31 and 32: INTRODUCTION. xxi 8. Genus Amphelia
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Page 51 and 52: ; INTRODUCTION. xli 64. Genus Astro
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Page 59 and 60: INTRODUCTION. xlix 14. Genus Ctclos
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Page 63 and 64: INTRODUCTION. liii 7. Genus Stephan
Page 65 and 66: INTRODUCTION. Iv Family VII. PORITI
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Page 73 and 74: INTRODUCTION. Ixiii Family X. SERIA
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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
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Page 85 and 86: INTRODUCTION. Ixxv Family I. ALCYON
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INTRODUCTION. Ixxvii Second Tribe
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INTRODUCTION. Ixxix 1 7. Ge?ius Dis
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INTRODUCTION. Ixxxi 8. Genus Soland
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INTRODUCTION. Ixxxiii 3. Ge7lUS ViR
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INTRODUCTION. Ixxxv Order 3. PODACT
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CORALS OF THE UPPER CHALK. 46 towar
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CORALS OF THE UPPER CHALK. 47 Famil
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: CORALS FROIM THE UPPER CHALK. 49
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CORALS FROM THE UPPER CHALK. 51 Tho
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CORALS FROM THE LOWER CHALK. 53 CHA
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CORALS FROM THE LOWER CHALK. 55 the
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CORALS FROM THE UPPER GREENSAND. 57
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; 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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