Fig. 32 in An early Cambrian fauna of skeletal fossils from the Emyaksin Formation, northern Siberia

Fig. 32. Phosphatised fragment of presumably hyolithid helen with fibrous internal structure preserved, from lower Cambrian Emyaksin Formation, Bol'shaya Kuonamka River, Anabar Uplift, Siberia; SMNH X 4665, sample 7/70. A. Plan view on the broader side of the fragment. B. View on the narrower side. C. Enlargement of A. Scale bar 600 μm, except C, 200 μm.