Richard P. Dearden

A revised interpretation of the oral anatomy of Athenaegis chattertoni Soehn & Wilson (Vertebrata, Heterostraci) from the Silurian of Northwest Territories, Canada

Heterostracans are pivotal in examining the evolution of feeding and the head in jawed vertebrates as the stem‐gnathostomes in which the oral apparatus is more commonly preserved. However, most analyses of their feeding, especially recent studies using modern 3D imaging methods, have focused on a specific subgroup,...