Some ichthyosaurs are too old, and some ichthyosaurs are too young. But a new species of marine reptile is the perfect age - that is, for revealing one of the most mysterious periods in the ...

3D models of the nine ichthyosaurs analyzed by the researchers, shown in their evolutionary context. Credit: Gutarra et al., 2019) 3D models of the nine ichthyosaurs analyzed by the researchers, shown ...