[{"clade":"Total group Osteoglossidae","fossil":"Paralycoptera wui","left":"Arapaima_gigas","right":"Notopterus_notopterus","min":"107","max":"159.7017017","locality":"Guantou Formation, China","authority":"Xu & Chang (2009)","age_authority":"Li et al. (2011, 2013)"},{"clade":"Crown Osteoglossidae","fossil":"Joffrichthys symmetropterus","left":"Heterotis_niloticus","right":"Osteoglossum_bicirrhosum","min":"58.551","max":"138.1206557","locality":"Paskapoo Formation at Joffre Bridge","authority":"Li et Wilson 1996 JVP, Li etal 1997a, Li et Wilson 1999, Hilton 2003 and Wilson and Murray 2009.","age_authority":"Magnetic polarity chron C26 encompassing Ti 3 and Ti4 of Tiffanian NALMA, age estimate derived from Gradstein et al. (2012)"},{"clade":"(Mormyridae + Gymnarchidae) vs Notopteridae","fossil":"Palaeonotopterus greenwoodi","left":"Myomyrus_macrops","right":"Notopterus_notopterus","min":"93.9","max":"142.6832833","locality":"Kem-Kem, Morocco","authority":"Forey & Cavin (2001); see Benton et al. (2015) for age assessement","age_authority":"See argumentation in Benton et al. (2015), calibration 29; specimen derives from same geological unit"}]