Strophomenata - Orthotetida - Meekellidae

Alternative combination: Orthis ladina

Belongs to Orthothetina according to R. Posenato 2005

Sister taxa: Orthothetina azarjani, Orthothetina caojiayingensis, Orthothetina convergens, Orthothetina curvata, Orthothetina deminuta, Orthothetina dzhulfensis, Orthothetina ellipsoides, Orthothetina elongata, Orthothetina emaciatus, Orthothetina eusarkos, Orthothetina frechi, Orthothetina gigantea, Orthothetina hayasakai, Orthothetina iljinae, Orthothetina kayseri, Orthothetina mianzhuensis, Orthothetina peregrina, Orthothetina persica, Orthothetina planoconvexa, Orthothetina polita, Orthothetina regularis, Orthothetina ruber, Orthothetina ruchae, Orthothetina shuangtangensis, Orthothetina sokolskajae, Orthothetina speciosa, Orthothetina transversa, Orthothetina triangularis, Orthothetina vediensis, Orthothetina yanziyanensis, Orthothetina yishanensis, Orthothetina yuananensis, Orthothetina zhejiangensis

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 13.3 x 17.8