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This sounds like a preview for the Season 3 premiere episode of DC’s Legends of Tomorrow. The episode is called "Aruba-con", and deals with the fall out from some timey-wimey mess made by the heroes, including dinosaurs wandering around modern-day USA and them subsequently being herded back through some portals: According to @FuzzyBoots, this ...


6

1882: "The Iguanodon's Egg" and "The Hatching of the Iguanodon", a two-part story by Robert Duncan Milne, published in the April 1, 1882 and April 8, 1882 issues of The Argonaut, available at the Internet Archive. An ancient egg is unearthed in New Guinea. Warmed by the sun and a man who uses it as a throne, after a while it hatches a real live iguanodon.


6

A Strange Manuscript Found in a Copper Cylinder (1888) by James De Mille In the novel many dinosaurs are mentioned as it is your typical trapped in a "lost world" type story as described on Wikipedia. The main story of the novel is the narrative of the adventures of Adam More, a British sailor shipwrecked on a homeward voyage from Tasmania. After ...


3

Isn't it the movie "Dinosaurs!"? In the story they dig up a Tyrannosaurus and a Brontosaurus along with a caveman. The Brontosaurus and the caveman become good friends with the child main character, however the Brontosaurus is gravely wounded by the Rex after a fight and dies shortly after.


2

This mostly describes the educational short Dinosaurs, Dinosaurs, Dinosaurs from 1985, where a young man called Eric goes to a museum and a clerk hands him a message from his friend Gary who's supposed to put on a dinosaur show with him. Turns out Gary's turning into a dinosaur so Eric goes looking for a cure, teaching us about dinosaurs along the way. In ...


1

This is a partial match for the Magic Treehouse series by Mary Pope Osborne, in which a brother (Jack) and sister (Annie) discover a magic treehouse, enchanted by Merlin (of King Arthur fame), which enables them to travel in time through a series of books within the treehouse. All they have to do is read/look at a part of the book and (IIRC) wish to go there,...


1

1931: The Exile of Time, part 2 of a 4-part serial by Ray Cummings, in Astounding Stories, May 1931, available at the Internet Archive. Travelers in a speeding "time cage" zip through the age of dinosaurs in a couple of paragraphs. Probably not exactly what you're looking for, since they don't "come face to face with one or more dinosaurs, as ...


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