[{"clade":"Gasterosteus aculeatus","fossil":"Gasterosteus cf. wheatlandi","left":"Gasterosteus_aculeatus","right":"Gasterosteus_wheatlandi","min":"13.1","max":"39.39099099","locality":"Monterey Formation (Alta Mira Shale), California, USA","authority":"Benton et al. (2015)","age_authority":"See argumentation in Benton et al. (2015), calibration 39"}]