Here's a little something. It's old, but worth reading,
http://www.skygaze.com/content/strange/Dinosaurs.shtmlDinosaurs in the lost world
In his 1912 novel The Lost World Sir Arthur Conan Doyle imagined the discovery, by a band of hardy English explorers, of a plateau on the Amazon basin where prehistoric monsters lived on millions of years past their time. Considering the enduring popularity of this romantic tale, which one biographer calls "perhaps his finest work in fiction," it is perhaps surprising that relatively few claims of relic dinosaurs in South America have been made in real life.
One such account was published in the January 11, 1911, issue of the New York Herald. Its author, a German named Franz Herrmann Schmidt, of whom little is known, claimed that one day in October 1907 he and a companion, Capt. Rudolph Pfleng, along with Indian guides, entered a valley composed of swamps and lakes in a remote region of the Peruvian interior. There they discovered some strange, huge tracks, indicating the presence of more than one unknown animal in the waters, and crushed trees and vegetation. They also noticed the "queer" absence of alligators, iguanas, and water snakes.
Despite the guides' visible fear the party camped in the valley that night. The next morning expedition members got back into their boat and resumed their search for the animals. Just before noon they found fresh tracks along the shore. Pfleng declared that he was going to follow them inland, however dangerous the quest. just then they heard the screams of a troop of monkeys which had been gathering berries from some trees nearby. According to Schmidt's account:
... [A] large dark something half hidden among the branches shot up among [the monkeys] and there was a great commotion.
One of the excited Indians began to paddle the boat away from the shore, and before we could stop him we were 100 feet from the waterline. Now we could see nothing and the Indians absolutely refused to put in again, while neither Pfleng nor myself [sic] cared to lay down our rifles to paddle. There was a great moving of plants and a sound like heavy slaps of a great paddle, mingled with the cries of some of the monkeys moving rapidly away from the lake.... For a full 10 minutes there was silence, then the green growth began to stir again, and coming back to the lake we beheld the frightful monster that I shall now describe.
The head appeared over bushes 10 feet tall. It was about the size of a beer keg and was shaped like that of a tapir, as if the snout was used for pulling things or taking hold of them. The eyes were small and dull and set in like those of an alligator. Despite the half dried mud we could see that the neck, which was very snakelike, only thicker in proportion, was rough knotted like an alligator's side rather than his back.
Evidently the animal saw nothing odd in us, if he noticed us, and advanced till he was no more than 150 feet away. We could see part of the body, which I should judge to have been eight or nine feet thick at the shoulders, if that word may be used, since there were no fore legs, only some great heavy clawed flippers. The surface was like that of the neck....
As far as I was concerned, I would have waited a little longer, but Pfleng threw up his rifle and let drive at the head. I am sure that he struck between the eyes and that the bullet must have struck something bony, horny or very tough, for it cut twigs from a tree higher up and further on after it glanced. I shot as Pfleng shot again and aimed for the base of the neck.