Chinyorwa: Pane zviwanikwa zviviri chete zvakanyorwa zvefossil ye bog turtle. Mufi J. Alan Holman, nyanzvi ye paleontologist uye herpetologist, akatanga kuzivikanwa ne bog turtle plastral zvisaririra muCumberland Cave, Maryland (pedyo neCorriganville), ayo ari eIrvingtonian zera (kubva pamamiriyoni 1,8 kusvika makore mazana matatu ezviuru apfuura). Kuwanikwa kwechipiri kwaive kweRancholabrean (pakati pemakore mazana matatu ezviuru nemazana gumi nerimwe ezviuru apfuura) shell zvidimbu muGiant Cement Quarry muSouth Carolina (pedyo neHarleyville), naBentely naKnight muna 1998. Iyo karyotype ye bog turtle inoumbwa ne50 chromosomes. Mubvunzo: Ndeapi mazita maviri ehunyanzvi akabata Alan Holman?
nyanzvi yezvipembenene uye nyanzvi yezvipembenene