Biostratigraphy of Devonian microvertebrates 
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Figure 6 A, palaeoniscoid indet., crown view of scale QMF 31846, x30, SD192/60 m. 
B, ?ptyctodontid indet., lateral view of probable supragnathal QMF 31847, x20, SD111/29 m. 
C-F, palaeoniscoid indet. tooth-bearing plates. C, latero-basal view of QMF 31848, x75, SD204/95 m. D, top 
view of QMF 31849, x35, SD204/120 m. E, top view of QMF 31850, x65, SD15/148.5 m. F, top view of QMF 
31851, x90, SD210/87.7 m. 
G,H, arthrodire indet. infragnathal fragment, G, lingual, H, labial views of QMF 31852, x30, SD198/67.6 m. 
I, placoderm indet., crown view of scale QMF 31855, x55, SD238/227 m. 
], arthrodire indet., crown view of scale QMF 31853, x60, SD170/200 m. 
K, L, placoderm indet. K, lateral view x30, L, crown view x35 of scale QMF 31854, SD128/130.8 m. 
M,N, thelodont indet. M, crown view, N, basal view of scale QMF 31856, x60, SAG/26.8 m. 
0,F, ?ptyctodontid indet. quadrate, QMF 31857, x20, SD15/145.6 m. 
