Eonatator Pronunciation

Fun Facts

• ✓Eonatator lived in the Western Interior Seaway, a shallow inland ocean that split North America completely in two from the Gulf of Mexico all the way up to the Arctic during the Late Cretaceous period.
• ✓Fossils of Eonatator have been found on three continents including Sweden, which means the Late Cretaceous ocean connected European and American seas in ways that let these predators spread across the entire globe.
• ✓Eonatator was originally lumped together with a close relative called Halisaurus for over a century before scientists separated it into its own genus, and that split also created a whole new subfamily called Halisaurinae.
• ✓As a mosasaur, Eonatator was not a dinosaur at all but was actually more closely related to modern monitor lizards and snakes than to any dinosaur, making it one of the most successful lizard lineages in Earth's history.
• ✓Eonatator lived during one of the warmest periods in Earth's history when sea levels were so high that vast shallow epicontinental seas covered huge portions of what is now dry land, making the world almost unrecognizable compared to today.