Text-fig. 6. Simplified morphology of thoracic tergites of Hydrocephalus, Paradoxides, Eccaparadoxides and Acadoparadoxides. Morphology of Hydrocephalus based on H. carens (according to Whittington 1990) and H. minor; morphology of Paradoxides based on P. paradoxissimus gracilis; morphology of Eccaparadoxides and Acadoparadoxides based on E. pradoanus (according to Esteve et al. 2013) and A. cf. sacheri. in Enrollment And Thoracic Morphology In Paradoxidid Trilobites From The Cambrian Of The Czech Republic - Laibl, Lukáš (2016)