ornithopappi

from The Collaborative International Dictionary of English v.0.48

Ornithopappi \Or*ni`tho*pap"pi\, prop. n. pl. [NL., from Gr.
   'o`rnis a bird + ? an ancestor.] (Zool.)
   An extinct order of birds. It includes only the
   Archaeopteryx.
   [1913 Webster]