Extended Data Figure 2. Scales attributed to Dialipina and SEM images of Janusiscus schultzei n. gen. et sp.
Scales from the localities of the Kureika Formation along the Sida River, Kotui Basin, Siberia, previously referred to D. markae, in: a, external view (GIT 496-8 [Pi.1384a]), previously figured by Schultze (1992; Pl.1, Fig.3); b, internal view (GIT 496-10 [Pi.1385b]); c, external view (GIT 496-16 [Pi.1387]). Gross scale morphology of D. salgueiroensis and referred species of Dialipina: d, holotype of D. salgueiroensis, from the Emsian of Canada. Redrawn from Schultze (1977: fig. 3h); e, holotype of D. markae, from the Lochkovian of the New Siberian Islands. Redrawn from Schultze (1977: fig. 3a); f, scale from the Kureika Formation, Siberia, referred to D. markae by Schultze (1992). Photograph of specimen in a Modified from Schultze (1992: fig. 4); g, new interpretive drawing of scale in c. h, Broken edge of the skull roof in the holotype (GIT 496-6 [Pi.1383]). The histological structure is not preserved. i, The anterior part of the referred skull roof (GIT 496-7). The dermal bone is poorly preserved, with the bone in the centre of each ridge missing. The histological structure is not preserved. j, the holotype (GIT 496-6 [Pi.1384]) in dorsal view, showing the endoskeletal supraoccipital crest and openings of the endolymphatic ducts. Images a, b, and c modified slightly from that by Institute of Geology at TUT and licensed by CC 3.0.
http://geokogud.info/git/specimen_image/496/496-8.jpg;