. Bulletin of the British Museum (Natural History), Geology. 200 H. G. OWEN together only in the condensed regularis to floridum Subzones nodule beds in the Leighton Buzzard district, Bedfordshire. At West Dereham (Norfolk), however, the ammonite fauna is more restricted and S. (G.) perinflata is associated with S. (S.) chalensis, but not the typical S. (S.) kitchini. In the lower part of the Carstone Member of the Lower Greensand in the Isle of Wight, the typical 5. (S.) chalensis is associated with S. (S.) kitchini but S. (G.) perinflata has not been found. Sediments of Sonneratia chalensis
. Bulletin of the British Museum (Natural History), Geology. 200 H. G. OWEN together only in the condensed regularis to floridum Subzones nodule beds in the Leighton Buzzard district, Bedfordshire. At West Dereham (Norfolk), however, the ammonite fauna is more restricted and S. (G.) perinflata is associated with S. (S.) chalensis, but not the typical S. (S.) kitchini. In the lower part of the Carstone Member of the Lower Greensand in the Isle of Wight, the typical 5. (S.) chalensis is associated with S. (S.) kitchini but S. (G.) perinflata has not been found. Sediments of Sonneratia chalensis Zone age are very sparse and scattered in occurrence in England. However, in view of the well developed sequence in the Mangyschlak Peninsula it is possible to detect two separate faunas in sediments formerly classified with the kitchini Subzone from the associations referred to above. The S. (G.) perinflata Subzone appears to be represent- ed at West Dereham without the admixture of earlier, regularis Subzone, or later, kitchini. 33a 33b. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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