PLASTOCHRON

ah al an ar as at ha ho la lo na no oh on op or os pa sh so ta to

act ahs alp als alt ant apo apt arc ars art ash asp can cap car cat col con coo cop cor cos cot hao hap has hat hon hop hos hot lac lap lar las lat loo lop lot nah nap noh noo nor nos not nth oar oat oca oho ohs ono ons ooh oot ops opt ora orc ors ort pac pah pal pan par pas pat pht poh pol poo pot pro pst rah ran rap ras rat rho roc rot sac sal sap sat sha sol son sop sot spa tan tao tap tar tas tho ton too top tor

acts alps also alto alts ants apos arch arco arcs arts atop calo cans cant caph capo caps carl carn carp cars cart cash cast cats chao chap char chat chon chop clan clap clon clop clot coal coat coho cola cols colt cons cool coon coop coos coot cops corn cors cosh cost cots crap crop halo halt hant haps harl harp hart hasp hast hats hoar holp hols holt hons hoop hoot hops hora horn host hots lacs laps lars lash last lath lats loan loca loch loco loon loop loos loot lops lorn lost lota loth lots naos naps narc nolo nosh nota oars oast oath oats ocas onos onto oohs oops oots opah opal opts oral orca orcs orts osar pacs pact pals pans pant pars part pash past path pats phat phon phot plan plat plot poco polo pols pons pooh pool poon poor poos porn port posh post pots prao prat proa pros rant raps rapt rash rasp rath rato rats rhos roan rocs root rota rotl roto rots salp salt scan scar scat scop scot shat shoo shop shot slap slat slop slot snap snot soap soar soca sola solo soon soot soph sora sorn sort soth span spar spat spot star stoa stop tach taco tahr talc tans taos taps tarn taro tarp tars than thro tola tons tool toon toph topo tops tora torc torn toro tors tosh trap trop tsar