. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. DEVONIAN CHONETACEAN BRACHIOPODS FROM SOUTH AFRICA 175. Fig. 8. Notiochonetes skottsbergi (Clarke, 1913). A-B. AM4805, internal mould and latex cast of a brachial valve, x C. AM5192, external mould of a brachial valve, X D. SAM-6713, latex cast of a brachial valve exterior, x E. SAM-3391, internal mould of a pedicle valve, x F. AM 4808, latex cast of a brachial valve exterior, x A, B, and F are from the Tra-Tra Formation, and C is from the Waboomberg Formation, all from north
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. DEVONIAN CHONETACEAN BRACHIOPODS FROM SOUTH AFRICA 175. Fig. 8. Notiochonetes skottsbergi (Clarke, 1913). A-B. AM4805, internal mould and latex cast of a brachial valve, x C. AM5192, external mould of a brachial valve, X D. SAM-6713, latex cast of a brachial valve exterior, x E. SAM-3391, internal mould of a pedicle valve, x F. AM 4808, latex cast of a brachial valve exterior, x A, B, and F are from the Tra-Tra Formation, and C is from the Waboomberg Formation, all from north-east of Montagu, western Cape; D-E are from the Gydo Formation in the Ceres district, western Cape. The Bokkeveld Group specimens described here overlap in size range with both Isaacson's (1977) and Racheboeuf & Branisa's (1985) specimens, but none are as large as their biggest shells. All bear a close resemblance to A. boucoti as described by Isaacson but none are similar to those described by Racheboeuf & Branisa. They also occur on the same pieces of rock as larger chonetids that do show the development of a median septum. However, there is no overlap in sizes, the larger shells have rounded rather than V-shaped ribs, and there are certainly no intermediate morphologies. The larger specimens are referable to. 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 South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
