Planet of the Dino-Men Series by Rowan Stone

When the escape pod from his doomed ship lands in a foggy jungle on an unexplored world, Billings finds himself alone and unable to contact the other members of his crew. As he searches for shelter, he is discovered by a massive humanoid triceratops, and learns that on this world mammals exist to serve as incubators for the planet's dominant dinosaur species.An oviposition mpreg short, from implantation to birth.

Stranded on a world dominated by humanoid dino-men, Clark stumbles into the camp of a massive stegosaurus-like native. His armored host takes him back to his village, where Clark finds himself the focus of a competition between the dino-men...a mating competition in which Clark himself is the prize.

After ejecting from his doomed ship, Fielding's escape pod is dragged wildly off-course by the planet's avian inhabitants. The scientist finds himself taken before the leader of the pterodactyl-like beings, and learns his new purpose on this strange, alien to serve as host for the avian dinosaur's eggs .