DESCRIPTION 
OF 
THE BRITISH FOSSIL CORALS. 
CHAPTER VIII. 
CORALS FROM THE PORTLAND STONE. 
Tur most recent Oolitic Formations appear to contain very few corals. We have 
seen only three species which can, with any degree of certainty, be referred to the conti- 
nental deposits belonging to this group, and but one British species. The former were 
found in strata which are considered as corresponding to the Kimmeridge Clay, and we 
are not aware of any having been met with in that Formation in Great Britain. The 
latter is contained in the Portland stone, and appears to be peculiar to that upper portion 
of the superior Oolite. 
Family ASTREID &, (p. xxiii.) 
Genus ISASTREA. 
IsASTREA OBLONGA, (Tab. XII, fig. 1, 1a, 14, le, 1d.) 
CoRALLOIDEA COLUMNaRIA, etc., Parkinson, Org. Remains, vol. ii, p. 60, tab. vi, figs. 12, 13, 
1808. 
Sturcrrrep coraL, 7. Conybeare and W. Phillips, Outlines of the Geol. of England and 
Wales, p. 176, 1822. 
LiITHOSTROTION OBLONGUM, Fleming, British Animals, p. 508, 1828. 
Maprepora, siticirinp, EZ. Benett, Catal. of the Organic Remains of the County of Wilts, 
p- 7, 1831. 
ASTREA TISBURIENSIS, Fitton, On the strata below the chalk; Geol. Trans., 2d series, vol. iv, 
p. 347, 1843. 
LITHOSTROTION OBLONGUM and ASTREA TISBURIENSIS, Morris, Cat. of Brit. Fossils, pp. 31, 
40, 1843. 
IsastTREA OBLONGA, Milne Edwards and J. Haime, Polypiers Fossiles des Terrains Paleeoz., 
etc. Archives du Museum, vol. v, p. 103, 1851. 
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