Fig. 4 in Soft-tissue preservation in the Lower Cambrian linguloid brachiopod from South China

Fig. 4. Two linguloid brachiopods, Lingulellotreta malongensis and Lingulella chengjiangensis, from the Yu'anshan Member of the Qiongzhusi (Chiungchussu) Formation, Lower Cambrian, South China. A. Lingulellotreta malongensis, ELL L−0017. A1, photograph of the dorsally and right laterally compressed specimen, showing the interiors, including the digestive system and paired imprints of brachia; A2, explanatory drawing of the same. B. ELI L−0091A, a parallel specimen of Lingulellotreta malongensis, note the faint brachial contour and digestive tract with considerable relief. C. Lingulella chengjiangensis, ELI C−0029. C1, photograph (dorsal view) of dorsal interior, showing the digestive tract with an anterior anus, and with impression of visceral cavity; C2, explanatory drawing of the same. D. Lingulella chengjiangensis, ELI C−0027, anterodorsally compressed specimen, showing the position of the mouth. Scale bars 2 mm.