[{"clade":"Total group Macropinna","fossil":"Macropinna sp","left":"Macropinna_microstoma","right":"Rhynchohyalus_natalensis","min":"7.246","max":"107.9621682","locality":"Kurasi Formation, Sakhalin","authority":"Nazarkin (in press)","age_authority":"Serravallian-Tortonian, age estimate derived from Gradstein et al. (2012)"}]