Following up on the previous series where pterosaurs dominated, we had to sneak in a bit more of them here. Dave has always had an aversion to the toothy ornithocheirids as while so many of them turn up in 3D (unlike pretty much all other pterosaurs) they also have a horrific taxonomic history and they are a nightmare to deal with. Happily, Taissa Rodrigues is here to talk all about them and she has done more than anyone else to sort out these species and their relationships in recent years as well as working on their biology and that of other pterosaurs in her native Brazil. We also get onto the tricky subject of fossil laws, poaching, exports and differing rules and histories around the world and the damage it can do to research.   Links: Taissa on Twitter https://twitter.com/paleotaissa A report on one of her recent papers on pterosaur pneumaticity https://paleontologia.ufes.br/en/conteudo/vertebral-air-cavities-large-pterosaurs-disclose-key-adaptations-flight    To support the show please write a review, share this with your friends and join us on Patreon.  https://www.patreon.com/terriblelizards