Stromatoporoids from the Inferior Oolite of South-West England

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Abstract
Since Tornquist (1900, 1901) drew attention to the presence of stromatoporoids in the Mesozoic rocks, a large number of these fossils have been described from the Secondary formations of Europe, Asia, and North America. The only stromatoporoids so far recorded from the Jurassic or Cretaceous rocks of this country, however, are those mentioned by Mr. K. P. Oakley and Dr. H. Dighton Thomas, who, in their report on Miss H. M. Hutton's collection of Inferior Oolite fossils, state that “among her more recent finds there are several specimens of an undescribed species of Stromatoporoid” ( Proc. Cotteswold Nat. F.C. xxvi, 1937, p. 106). The species described in the present paper came under our notice in 1936. It has apparently a fairly wide distribution in the Inferior Oolite, since our specimens range from North Somerset to Oxfordshire. The first example to attract our attention was found by Mr. J. W. Tutcher some years ago, at Stantonbury Camp, near Bath. It was a small, spherical nodule, little more than an inch in diameter, and was presumed to be a calcareous alga, which, to judge from its external appearance, it might very well have been; but a thin section left no doubt as to its nature, and further investigation has shown it to be congeneric with the genotype of Burgundia Munier-Chalmas MS. in Dehorne. Additional examples of the same species were subsequently identified. These included several larger and better specimens among the Jurassic Hydrozoa in the British Museum (Natural History), from Coombe Hill, near

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