English: A diagram showing the skulls and trunk armor of four maxillate placoderms from the late Silurian of China. Depicted in dorsal view and not to scale. The jugal (a plate with clear homology to the skull bones of bony fish) is labelled with color, while other plates are labelled with letters. Fine dotted lines indicate lateral line canals and coarse dotted lines indicate regions not preserved in available fossils. The estimated extent of the pectoral fins are represented in light grey with a dotted outline. Other fins and soft tissue are not illustrated.
Entelognathus primordialis based on a diagram by Zhu et al. (2013), with the 'postnuchal plate' labelled as a possible median dorsal according to Zhu et al. (2016);
Qilinyu rostrata based on a diagram by Zhu et al. (2016);
Silurolepis platydorsalis based on a diagram and redescription by Zhu et al. (2019);
Bianchengichthys micros based on a diagram by Li et al. (2021);
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