Ancient sea levels offer evidence of rapid polar wander during the Jurassic and Cretaceous

Science says researchers identified multiple sea-level patterns over the past 320 million years that they interpret as evidence of prolonged episodes of rapid true polar wander, including during the Jurassic and Cretaceous. True polar wander occurs when the solid outer Earth shifts relative to its spin axis. The researchers used reconstructions of continental flooding to test a question that paleomagnetic evidence had not definitively resolved.