Goniporus alatus, (GROSS, 1947)

Burrow, Carole Jan, Murphy, Michael & Turner, Susan, 2023, Late Silurian to earliest Devonian vertebrate biostratigraphy of the Birch Creek II section, Roberts Mountains, Nevada, U. S. A., PaleoBios 40 (1975), pp. 1-32 : 20-22

GONIPORUS ALATUS ( GROSS, 1947)

( TABLE 1; SUPPL. 1, FIG. 5 )

Type material — Holotype scale MB.f.410 ( Gross 1947, pl. 1 fig. 5a, b), Beyrichienkalk, Danzig (now Po- land) (uppermost Silurian, Přidolí).

Referred material —Three scales from BCII level 430.5’ (131.2 m): Roberts Mountains Formation.

Description and Remarks —These specimens are typical of the taxon, with one transitional cephalo-pectoral and two trunk scales (see e.g., Gross 1947, 1967). Distribution is in the Přidolí of Europe, Britain, and Russia and possibly into lowermost Lochkovian ( Märss et al. 2007).

Figures

Figure 5. Funicristata nevadaensis n. gen. n. sp. from the uppermost Silurian of the Birch Creek II section. A–C. UCR 10750-3 (level 456.5') in crown views and magnified view of the crown ridges; D, E. UCR 10750-2 (level 456.5') in crown and lateral views; F, G. UCR 10746-10 (level 430.5') in anterocrown and crown views; H, I. UCR 10746-8 (level 430.5') in anterocrown and laterocrown views; J, K. UCR 10750-10 (level 456.5') vertical longitudinal section; L. UCR 10750-12 (level 456.5') horizontal section through crown. Abbreviations: c=canal; en=enameloid; h=hyphal boring; po=pore openings. Scale bars=0.1 mm in A, B, D–L, 0.01 mm in C; anterior is to left or down, otherwise arrows point to anterior. See Table 1 for meterage.