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435 / Mesozoic
Belemnotheutis
Belemnotheutis antiquus
Rare soft tissues restore the ink sac, fins and ten hooked arms around an internal shell.
- Time range
- About 166 million years ago
- Final stage
- Middle Jurassic
- Geographic range
- Shallow lagoonal sea · Britain
01 / DEFINITION & ECOLOGY
What was Belemnotheutis?
Belemnotheutis (Belemnotheutis antiquus) was an extinct organism known from About 166 million years ago, with a range in Shallow lagoonal sea · Britain.
Life and ecology
This belemnoid used fins and jet propulsion to chase fish and crustaceans.
02 / DISAPPEARANCE
Why did Belemnotheutis disappear?
Jurassic marine turnover removed the genus.
03 / EVIDENCE
How do scientists know about Belemnotheutis?
Oxford Clay specimens preserve shell, ink, muscles and hooked arms directly.
04 / SOURCES & FURTHER READING
Check the source record
Use the scientific name to compare taxonomy, occurrence records and the fossil record. Database coverage and classifications may differ.
05 / REVISION HISTORY
How has this record changed?
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS