Scientists have found the world’s oldest crocodilian eggs that were laid 152 million years ago.
Scientists—in a study published this week in PLOS One—say they’ve discovered the world’s oldest known crocodile eggs.
The fossilized eggs are 152 million years old and were dug up during a years-long excavation in Portugal—some of them in dinosaur nests, strangely enough. Researchers say it’s unclear why the crocodile eggs were in dinosaur nests, but it seems “to suggest some form of biological relationship.”
The eggs were laid by members of a group of prehistoric crocodiles known as crocodylomorphs.
The Telegraph reports they appear to be from two different types of crocodylomorph. The newly discovered eggs are 40 million years older than the previous oldest known crocodile eggs and yet are strikingly similar to the eggs of modern crocodiles. One egg clutch contained 13 intact eggs, making it the most complete clutch of ancient crocodile eggs ever found.