Coursera offers four free courses hosted by the University of Alberta:
Dino 101: Dinosaur Paleobiology https://www.coursera.org/learn/dino101
Paleontology: Theropod Dinosaurs and the Origin of Birds https://www.coursera.org/learn/theropods-birds
Paleontology: Ancient Marine Reptiles https://www.coursera.org/learn/ancient-marine-reptiles
Paleontology: Early Vertebrate Evolution https://www.coursera.org/learn/early-vertebrate-evolution