PYGMY GOOSE
INYONI YO MUBWOKO BWA PYGMY  ni itsinda ry '" ibisimba byera " mu bwoko bwa Nettapus byororoka mu turere dushyuha. Nibitoya mu nyoni zose zo mu gasozi

. Nkuko "ibisimba byikaraga" ari itsinda rya paraphyletike,  bakeneye gushyirwa ahandi. Ubwa mbere byafashwe umubano na dabbling duck subfamily Anatinae  yarabajijwe

, kandi bigaragara ko bagize umurongo mumirasire ya kera ya Gondwanani yinyoni zo mumazi, aho zidafite aho zihurira.  Ubwoko bw’ibinyabuzima butarondowe kuva

nyakwigendera Hemphillian (5.0-4.1 mya) wa Jalisco, muri Mexico rwagati, nabwo bwamenyekanye guhera ku mpera ya tarsometatarsus. Nibyanditswe gusa mubwoko bwisi nshya. 

Ubwoko bwa Nettapus bwashinzwe n’umudage w’umudage witwa Johann Friedrich von Brandt mu 1836.  

Izina rikomoka mu kigereki cya kera nētta risobanura "inkongoro" na pous bisobanura "ikirenge". Byatekerezwaga ko ubwoko bwubwoko, 

inyoni zo muri Afrika pygmy ( Nettapus auritus ), zifite ibirenge numubiri byimbwa nijosi ryingagi.

Reba