ammonites
Orthella

Foraminferea - Miliolida - Cornuspiridae

Parent taxon: Hemigordiopsinae according to A. R. Loeblich and H. Tappan 1988

Sister taxa: Gordiospira, Hemigordiopsis, Hemigordius, Nodogordiospira, Orthovertella

Subtaxa: none

Ecology: stationary epifaunal deposit feeder