Slightly biased For the descriptions included, the app lists great details. Although it is apparent that the taxa listed are mostly invertebrates. I understand invertebrate fossils are very important to know for things such as unit correlation and age dating, but I would like to see genera under families such as Mosasauridae, dinosaurs and sharks. This might be easily accomplished by inviting a vertebrate paleontologist to the team or seeking information from curators of paleontology museums across North America.
Trilobite Trilobite is quite common but not listed. Good photos. Search words not flexibly linked to the list.
Very interesting, I quite like it. Includes a nice 'Introduction' (as do all the other jourist encylopedia apps) with a background to the material
Jigsaw puzzles from photographs of Barcelona’s best known sights and attractions
Jigsaw puzzles from photographs of New York’s best known sights and attractions