"Genus Pterocnemia" ba kalma ba ce a cikin harshen Ingilishi. Ya bayyana a matsayin kalma ko jumlar kimiyya.Duk da haka, zan iya ba da wasu bayanai game da shi. "Genus" yana nufin matsayi na harajin da aka yi amfani da shi a cikin rarrabuwa na nazarin halittu, yawanci yana nufin rukuni na nau'in jinsin da ke da alaƙa. "Pterocnemia" wani nau'in tsuntsaye ne a cikin dangin Rheidae, wadanda tsuntsaye ne marasa tashi daga Kudancin Amirka, wanda aka fi sani da "tinamous." Pterocnemia tinamous kuma an fi sani da "dwarf rheas" ko "ƙananan rheas."