Malawania

Malawania is an extinct genus of basal thunnosaurian ichthyosaur that lived during the Hauterivian or Barremian stages of the Early Cretaceous in what is now Iraq. The type and only known species is M. anachronus, first described in 2013 on the basis of a partial skeleton discovered at Amadia in 1952. The geological age of the specimen remained uncertain for several decades until palynological analyses demonstrated that it dated to the Early Cretaceous, making Malawania the first known non-ophthalmosaurid ichthyosaur to have survived beyond the Jurassic–Cretaceous boundary. Its scientific name, meaning "out-of-time swimmer", refers to the taxon's seemingly anachronistic nature, as its primitive anatomy contrasts markedly with its Early Cretaceous age. Morphologically, Malawania closely resembles the emblematic Early Jurassic ichthyosaur Ichthyosaurus, with most phylogenetic analyses recovering the two genera as sister taxa within Ichthyosauridae. This close relationship, despite a temporal gap of approximately 66 million years, challenges the hypothesis of a complete turnover of ichthyosaur faunas across the Jurassic–Cretaceous boundary and instead suggests that some lineages retained a relatively conservative body plan over a remarkably long interval of their evolutionary history.