A monograph of the British fossil corals - kreidefossilien.de
A monograph of the British fossil corals - kreidefossilien.de
A monograph of the British fossil corals - kreidefossilien.de
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Ix<br />
BRITISH FOSSIL CORALS.<br />
FamHy IX.<br />
FAVOSITID^.<br />
CoraUum essentially formed by lamellar walls, with little or no coenenchyma.<br />
chambers divi<strong>de</strong>d by numerous and well-<strong>de</strong>veloped complete tabulae.<br />
Visceral<br />
First Tribe—FAVOSITID.E.<br />
CoraUum massive. Walls perforated. Septa rudimentary. No canenchyma.<br />
1. Genus Favosites.<br />
Lamarck, Hist, <strong>de</strong>s An. sans Vert., vol. ii, p. 204, 1816; Calamopora, Goldfuss, Petref. Germ.,<br />
vol. i, p. 77, 1826-30.<br />
CoraUum composed <strong>of</strong> basaltiform coraUites, and having a basal plate covered with an<br />
epi<strong>the</strong>ca, and uo radiciform appendices. Calices at right angle with <strong>the</strong> axis <strong>of</strong> <strong>the</strong> coraUite,<br />
and in general hexagonal. Walls perforated in a very regular manner. Tahulm horizontal,<br />
and very regularly superposed. No canenchyma.<br />
Typ. sp., Favosites Gothlandica, Lamarck, loc. cit., p. 206.<br />
2. Ge7lUS MiCHELINlA.<br />
De Koninck, Descr. <strong>de</strong>s Anim. foss. <strong>de</strong>s Terr, houilliers <strong>de</strong> la Belgique, p. 30, 1842-44.<br />
CoraUum having a basal plate with radiciform prolongations. Tabula very irregular,<br />
and subvesicular. The o<strong>the</strong>r characters as in Favosites.<br />
Typ. sp., Michelinia tenuisepta, De Koninck, loc. cit., pi. c, fig. 3 a, b.<br />
3. Gemis Koninckia.<br />
Milne Edw. and J. Haime, Comptes reud., t. xxL\, p. 260, 184!).<br />
CoraUum resembling Favosites, but having <strong>the</strong> waUs larger and less regular, and <strong>the</strong><br />
septa constituted by series <strong>of</strong> distinct and spiuiibrm processes, interrupted at certain<br />
distances by <strong>the</strong> tabulae, which are horizontal,<br />
Typ. sp., Koninckia fragilis, Milne Edw. and J. Haime, loc. cit.<br />
4. Gentis Alveolites.<br />
{Pars) Lamarck, Syst. <strong>de</strong>s An. sans Vert., p. 375, 1801 ; Steininger, Mem. Soc. Geol. France, vol. i.<br />
CoraUimi composed <strong>of</strong> superposed strata <strong>of</strong> coraUites very similar to those <strong>of</strong> Favosites,