. Bulletin of the British Museum (Natural History) Geology Supplement. 4 6 3 4. 6 5 Fig. 37. Transverse serial sections of Torqidrhynchia speciosa (Munster). Kimmeridgian/ Lower Volgian. " Diceras Kalk ". Saal, Germany. (X3). Internal characters. Pedicle valve. There is a weakly developed pedicle collar. The deltidial plates project slightly, " reinforcing " the pedicle opening ; below the level of the pedicle opening they become conjunct and then " crumple up " against one another. Relatively slender, subparallel dental lamellae are present. The teeth are strong
. Bulletin of the British Museum (Natural History) Geology Supplement. 4 6 3 4. 6 5 Fig. 37. Transverse serial sections of Torqidrhynchia speciosa (Munster). Kimmeridgian/ Lower Volgian. " Diceras Kalk ". Saal, Germany. (X3). Internal characters. Pedicle valve. There is a weakly developed pedicle collar. The deltidial plates project slightly, " reinforcing " the pedicle opening ; below the level of the pedicle opening they become conjunct and then " crumple up " against one another. Relatively slender, subparallel dental lamellae are present. The teeth are strong and crenulated ; there are well developed lateral 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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