Researchers Calculate Mosasaur Burst Swimming Speeds

A new study reveals how prehistoric mosasaur species used distinct tail anatomy to hunt prey.

Updated on Oct. 21, 2026 in Reptiles

A fossilized mosasaur skeleton suspended underwater, illuminated by caustic light filtering from the surface, showcasing the predator's anatomical structure. — Researchers have reconstructed the biomechanics of four mosasaur species, revealing how specific tail adaptations enabled varied swimming speeds and hunting behaviors. AI Illustration. Upload story photo >

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Does studying the movement of extinct sea predators improve our understanding of modern marine ecosystem health?

Researchers have reconstructed the movement of four extinct mosasaur species to determine their burst swimming speeds and hunting behaviors. The study indicates that these marine reptiles evolved specific physical traits to either ambush their prey or pursue them across open waters.

Why it matters

Understanding how these predators moved provides insight into the ecological roles they filled millions of years ago. By mapping their biomechanics, scientists can better categorize the evolutionary adaptations that allowed mosasaurs to dominate ancient oceans.

A Tylosaurus reached a burst speed of 15 miles per hour using a single tail sweep. The study reconstructed the anatomy and movement of four distinct mosasaur species.

The players

Rutgers University

This public research university serves as the institutional base for the lead researchers involved in the study.

The details

Using fossil skeletons and simulations of muscle strength and water resistance, researchers analyzed how animals perform a slam-start by bending the tail. The findings highlight significant differences in acceleration, with Platecarpus and Tylosaurus showing higher agility than Mosasaurus and Plotosaurus.

October 7, 2026: The study was published in the journal Current Biology.

Culture Shift

This study follows the established methodologies of the comparative biomechanics research program at Rutgers University by applying modern lizard movement models to extinct marine life. It reflects a broader shift toward using quantitative physical simulations to test long-standing hypotheses about prehistoric animal behavior.

Residents in New Jersey may find interest in this research as local fossil evidence contributed to the study's findings. The data provides a clearer window into the prehistoric environment of the region.

The takeaway

The study demonstrates how precise anatomical modeling can clarify the mechanics of extinct species. These insights allow enthusiasts to better visualize how ancient marine reptiles interacted with their environment through specialized physical adaptations.