TY - JOUR N2 - The Cleveland Shale fauna represents a unique view of the time after a major Devonian extinction event (Frasnian–Famenian) with the recovery of arthrodires (Placodermi) best represented by this most specious North American fauna. This time was followed by an additional event (Hangenberg Biocrisis) leading to the extinction of arthrodires (and all other placoderms). An understanding of the diversity and interrelationships of North American arthrodires can aid our understanding of this critical time in vertebrate evolution. A new aspinothoracid arthrodire Hlavinichthys jacksoni gen. et sp. nov. is described from the Late Devonian of northern Ohio, U.S.A., which adds to our knowledge of this group. It provides a point of comparison to other members of the fauna whose interrelationships are poorly known. A phylogenetic analysis supports an assignment of Hlavinichthys jacksoni gen. et sp. nov. among the aspinothoracid arthrodires. This work has drawn attention to the continued need for descriptive and phylogenetic analyses of this unique fauna. Decades old species descriptions need revision along with preparation and description of new taxa. The work on Hlavinichthys jacksoni gen. et sp. nov. here is one step in that process. L1 - http://journals.pan.pl/Content/108908/PDF-MASTER/06_Carr.pdf L2 - http://journals.pan.pl/Content/108908 PY - 2018 IS - No 3 EP - 363–379 KW - Placodermi KW - New genus Hlavinichthys KW - New species Hlavinichthys jacksoni KW - Devonian KW - Famennian KW - Cleveland Shale KW - Ohio KW - U.S.A. A1 - Carr, Robert K. PB - Komitet Nauk Geologicznych PAN PB - Wydział Geologii UW VL - vol. 68 DA - 2018.10.01 T1 - A new aspinothoracid arthrodire from the Late Devonian of Ohio, U.S.A. SP - 363–379 UR - http://journals.pan.pl/dlibra/publication/edition/108908 T2 - Acta Geologica Polonica ER -