Zhen & Nicoll: Canning Basin Serratognathus bilobatus Fauna 
21 
Fig. 13. Serratognathus diversus An, 1981. All from the Honghuayuan Formation in Guizhou. Showing size variation; A -E,G,I,K and M 
are magnified equally. (A), Sb element, AM F. 135818, AFI983A, anterior view, bearing six laminar layers (IY133-046). ( B ), Sb element, 
AM F. 135819, THH10, anterior view, bearing six laminar layers (IY133-038). C,M, Sc element, AM F. 135820, YTH5, (C), anterior view, 
bearing eight laminar layers (IY133-024), (A/), posterior view (IY134-019). (D), Sa element, AM F. 135821, AFI986, upper-anterior view, 
bearing eight laminar layers (IY 133-050). E,F, Sc element, AM F. 135822, YTH4, (E), anterior view, bearing 10 laminar layers (IY 133-021), 
( F ), close up showing denticles along anterior margin of each laminar layer (IY133-022). ... [continued on facing page] 
