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519 / Paleozoic
Akmonistion
Akmonistion zangerli
Males carried a striking anvil-shaped brush-and-spine complex on the back.
- Time range
- About 336 million years ago
- Final stage
- Early Carboniferous
- Geographic range
- Warm coastal sea · Scotland
01 / DEFINITION & ECOLOGY
What was Akmonistion?
Akmonistion (Akmonistion zangerli) was an extinct organism known from About 336 million years ago, with a range in Warm coastal sea · Scotland.
Life and ecology
It hunted fish and invertebrates; the dorsal structure may have served display or mating.
02 / DISAPPEARANCE
Why did Akmonistion disappear?
Carboniferous chondrichthyan turnover ended the stethacanthid lineage.
03 / EVIDENCE
How do scientists know about Akmonistion?
Complete skeletons preserve teeth, fins and the dorsal complex, whose function remains debated.
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