research
The Sea Monster Shrinks to Fit the Fossils
A comprehensive reappraisal puts Liopleurodon near eight metres, not the 25 metres fixed in popular memory.
Summary
A comprehensive reappraisal puts Liopleurodon near eight metres, not the 25 metres fixed in popular memory.
University of Portsmouth researchers re-examined every specimen assigned to Liopleurodon ferox, including a near-complete skull, two well-preserved skeletons, and extensive postcranial material. Their reconstruction places maximum length just above eight metres and finds a skull about one quarter of total body length. Larger estimates relied on isolated fragments that cannot confidently be assigned to the species. The revised animal was smaller than its television legend but remained the largest aquatic vertebrate in the Oxford Clay ecosystem.
Why it matters
A comprehensive reappraisal puts Liopleurodon near eight metres, not the 25 metres fixed in popular memory.
Limits and context
- Larger estimates relied on isolated fragments that cannot confidently be assigned to the species.
Key claims
A comprehensive reappraisal puts Liopleurodon near eight metres, not the 25 metres fixed in popular memory.
Qualification: Larger estimates relied on isolated fragments that cannot confidently be assigned to the species.
Evidence: source-2026-07-21-002
Sources
- University of Portsmouth via Newswise: Liopleurodon reappraisalUniversity of Portsmouth via Newswise · official announcement
Corrections
No corrections have been recorded for this story.