イクチオルニスイクチオルニスMeanings1nounIchthyornisAn extinct genus of toothed seabirds from the Late Cretaceous period. Used in paleontological contexts.イクチオルニスは白はく亜あ紀き後こう期きに生せい息そくしていた海うみ鳥どりの一いっ種しゅです。Ichthyornis is a type of seabird that lived during the Late Cretaceous period.
