[{"clade":"MRCA Tydemania, Triacanthodes","fossil":"Carpathospinosus propheticus","left":"Tydemania_navigatoris","right":"Triacanthodes_ethiops","min":"26.93","max":"57.59398398","locality":"Przysietnica, Poland","authority":"Arcila et al. (2015)","age_authority":"IPM 4 (correlated with P21a; Tyler et al. 1993), age estimate derived from Gradstein et al. (2012)"}]