FIG. 4. — Acanthodian scales from sample C923 in Earliest Devonian gnathostome microremains from central New South Wales (Australia)

FIG. 4. — Acanthodian scales from sample C923, Cookeys Plains Formation (early Lochkovian), central New South Wales, Australia; A, B, Nostolepis lacrima Valiukevicius, 1994 scale MMMC02551 in crown (anterior edge to right) and lateral (anterior edge to left) views; C, D, Nostolepis sp. scale of "N. applicata"-type MMMC02552 in crown and lateral views (presumed anterior edge to left); E, F, Gomphonchoporus hoppei (Gross, 1947) scale MMMC02553 in crown (anterior edge at bottom) and anterior views; G, H, Trundlelepis sp. scale MMMC02554 in crown and lateral views (anterior edge to right). Abbreviation: ms, median sulcus. Scale bars: 0.1 mm.