Dinosaurs may hog the Mesozoic spotlight, but some of the neatest finds of recent note in paleontology come from under the sea: a very pregnant ichthyosaur and the partial remains of another that was a supersized specimen (think blue whale territory).

A quick ichthyosaur refresher: these marine reptiles show up in the fossil record and explode in size and number during the Triassic, get smaller but are still plentiful in the Jurassic (201-145 million years ago) and then die out during t