| His research on fossils included his exploration of how solid objects could be found inside one another, which was published in his 1669 dissertation Prodromus. |
| Revisions of Dioclerus, Harpedona, Mertila, Myiocapsus, Prodromus and Thaumastomiris. |
| Then, there are the Prodromus whales of the old Scotch Sibbald, and Jonah's whale, as depicted in the prints of old Bibles and the cuts of old primers. |
