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shows an outer zone of irregular plates (dissepiments) and an inner ring of thick spokes or septa. Caninia gigantea is typical of the Upper Caninia Zone and excellent examples can be seen on the east side of Caswell Bay (in the centre of a small downfold, or syncline) and again on the west side of Three Cliffs Bay (near the little crag that emerges from the sand). 5. Zaphrentis is the smallest of the corals and is shaped like a cornet. Examples can be found in Clement's Quarry at Oyster- mouth. 6a. Syringopora and 6b. Michelinia grandis. These are both Tabulate corals, their only major internal structures being floor-like partitions, known as tabulae The polygonal columns of the Michelinia coral colony are each lin. across. The tubes of Syringopora are thin and connected by numerous small horizontal tubes. Both corals occur abundantly in association with the large Caninia gigantea. 7. Reticuloceras superbilingue is a Goniatite, one of the more primitive of the coiled cephalopods (and ancestral to the better known Ammonites of the Jurassic Sysyem). The Goniatites were important in the more muddy parts of the Lower Carboniferous seas, but in Gower are found mainly in the black shale marine bands of the Millstone Grit. Reticuloceras superbilingue had a characteristic projection or lappet and is found in fossiliferous black shale exposed in the river banks of the Bishopston stream, at a point just downstream from the little foot bridge on Barland Common (or about 250-300 yards upstream from Kittle Quarry). 8. Carbonicola pseudorobusta is a Coal Measure non-marine lamellibranch and, as its name suggests, has a thick, strong shell. The Coal Measures can, by means of these mussels be sub- divided into a number of sub-divisions and C. pseudorobusta occurs in the second (or Communis) zone. Numerous excellent specimens can be found at the foot of the north wall of the working portion of the Killay Brickworks Quarry (permission to enter should first be obtained and gumboots are advisable in wet weather). These fossils are but a sample of the treasure trove to be found in Gower's rocks. What a wonderful peninsula this is The Gower Society is affiliated to:- Royal Institution of South Wales, Glamorgan County Naturalists' Trust, The National Trust, Council for the Preservation of Rural Wales, Civic Trust, Council for Nature, Cambrian Archaeological Association, Council for British Archaeology, Commons Open-Spaces and Footpaths Preservation Society, Ramblers Association. Royal Forestry Society of England and Wales, Welsh Folk Dance Society.