"Class Cycadopsida" ba ya bayyana a matsayin kalma da za a iya samu a daidaitaccen ƙamus. Duk da haka, zan iya ba da wasu bayanai game da abin da wannan kalma za ta iya yin nuni da shi a cikin mahallin kimiyya."Cycadopsida" kalma ce da ake amfani da ita a wasu lokuta don yin nuni ga rukunin tsire-tsire waɗanda suka haɗa da cycads, waɗanda suke. wani nau'in gymnosperm. Gymnosperms rukuni ne na tsire-tsire masu shuka iri waɗanda ba sa fitar da furanni ko 'ya'yan itace, kuma ba a rufe tsaba a cikin kwai. Cycads tsohuwar rukuni ne na tsire-tsire da suke da yawa a zamanin Mesozoic, kuma an san su da keɓantacce, kamannin dabino. a cikin rarrabuwa na nazarin halittu, kuma ana amfani da shi don rukunin kwayoyin da ke da alaƙa tare. Duk da haka, a cikin tsarin haraji na shuka na zamani, kalmar "Cycadopsida" ba a saba amfani da ita ba, kuma cycads yawanci ana rarraba su a matsayin wani ɓangare na Cycadophyta division ko class. wanda aka taɓa amfani da shi don komawa ga cycads ko rukuni na tsire-tsire masu dangantaka, amma ba kalmar da aka sani ba ne a cikin haraji na zamani.