euornithes

from The Century Dictionary.

• A superordinal group of birds, containing all living birds excepting the struthious or ratite forms, the tinamous, and the penguins. It is the same as Carinatæ without the tinamous and penguins.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) The division of Aves which includes all the typical birds, or all living birds except the penguins and birds of ostrichlike form.