| 释义 |
‖ ichthyornis Palæont.|ɪkθɪˈɔːnɪs|
[mod.L. (Marsh 1872), f. Gr. ἰχθύ-ς fish + ὄρνις, ὄρνιθ-ος bird.]
An extinct genus of toothed birds (Odontornithes) belonging to the order or sub-class Odontotormæ, having socketed teeth and biconcave vertebræ, the remains of which occur in the cretaceous rocks of North America. Hence ichthyornithic |-ɔːˈnɪθɪk| a., belonging to this genus. ichthyˈornithid, a bird of the family Ichthyornithidæ.
1872O. C. Marsh in Amer. Jrnl. Sc. & Arts 3rd Ser. IV. 344 Notice of a new and remarkable bird... This species may be called Ichthyornis dispar. 1873Ibid. VI. 74 Notice of a new Species of Ichthyornis. 1884G. Allen in Longm. Mag. Jan. 290 The ichthyornis has a row of teeth in each jaw. 1896Newton Dict. Birds 954 The Teeth of Ichthyornis are..restricted to the mandibles and maxillæ; but they stand each in a separate socket. |