Morphology and systematic position of the dinocephalian Styracocephalus platyrhynchus



The taxonomic position of the therapsid Styracocephalus platyrhynchus (Amniota, Therapsida) is uncertain, as previous workers have been unable to demonstrate conclusively its affinity with either the Dinocephalia or Biarmosuchia. This was largely because the description was based solely on the poorly preserved and badly distorted holotype. Additional material now provides new data on the skull, and it is evident that the genus can be accommodated within the Dinocephalia as a separate family, the Styracocephalidae.