The latest supplement from Rattrap Productions has just made it's PDF debut. Thrilling Expeditions: Valley of the Thunder Lizard is slightly different from previous supplements as it's designed to work with several of their genre rulesets, in this case, .45 Adventure (pulp), Gloire (swashbuckling) and Fantastic Worlds (pulp SF).
Valley of the Thunder Lizard is 126 pages long and is intended to be the first of a series. In brief it covers adventures with dinosaurs, so the Lost World, anything with Doug McClure in it, time travelling tourists in pre-history etc.
It contains a few new rules, some new archetypes (one each for the 3 rule sets) a couple of new special abilities (Big Game Hunter and Tracking), stats for various dinosaurs (including info on how to create them), prehistoric mammals, neanderthals, saurians and scenarios for each of the three genres.
At $12 for the PDF it's pretty good value (especially with current exchange rates) and will make some interesting reading!