Ichthyornis

[ ik-thee-awr-nis ]

/ ˌɪk θiˈɔr nɪs /

an extinct genus of toothed birds having vertebrae resembling those of fishes.

Origin of Ichthyornis

< New Latin (1872) < Greek ichthy- ichthy- + órnis “bird”

They are of two leading types, of which the Ichthyornis and Hesperornis are the standard specimens.

The Story of Evolution |Joseph McCabe
The remarkable “fish-bird” (Ichthyornis) of Marsh is also very reptilian in some of its characters.

The Chain of Life in Geological Time |Sir J. William Dawson
Ichthyornis, ik-thi-or′nis, n. a fossil bird with vertebr like those of fishes, and with teeth set in sockets.

Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) |Various
In Ichthyornis they are also distinct, in all other known birds they are fused together to a greater or less extent.

The Vertebrate Skeleton |Sidney H. Reynolds

ichthyornis

/ (ˌɪkθɪˈɔːnɪs) /

an extinct Cretaceous sea bird of the genus Ichthyornis, thought to have resembled a tern

C19: New Latin, from ichthy- + Greek ornis bird