Segment of the 1925 film "The Lost World" featuring Agathaumas, Tyrannosaurus and Pteranodon.
<bdi><a href="https://en.wikipedia.org/wiki/en:Harry_O._Hoyt" class="extiw" title="w:en:Harry O. Hoyt"><span title="American screenwriter, film director (1885-1961)">Harry O. Hoyt</span></a>
</bdi>
1925
<a rel="nofollow" class="external free" href="https://archive.org/details/lost_world">https://archive.org/details/lost_world</a>