Fig. 36 in Early-middle Cambrian stratigraphy and faunas from northern Siberia

Fig. 36. Sclerites of chancelloriids from the lower Cambrian Erkeket Formation, Khorbusuonka River (A, K, N, P–S) and Tyuser Formation, lower reaches of the Lena River (B–J, L, M, O), Siberia, Russia; samples 11/16.1 (A), 19/5B (N), 19/11.75 (P–S), 19/12.75 (K), 21/21 (B–H), 21/51 (I, J), 21/54 (L, M, O). A–D, P, R, S. Chancelloria spp. with a central ray, SMNH X11094–11100, respectively. F–H, M, Q. Chancelloria spp. without a central ray, SMNH X11101–11105, respectively. E, N, O. Allonnia sp., SMNH X11106–11108, respectively. I–L. Archiasterella sp., SMNH X11109–11112, respectively. Scale bar: 500 µm (A–O, Q) and 250 µm (P, R, S).