Fish
Ferromirum oukherbouchi
Ferromirum oukherbouchiFerromirum oukherbouchi was an agile, small predatory chondrichthyan that inhabited shallow Devonian marine basins roughly 370 million years ago. Its remarkably preserved fossil skull revealed an unprecedented jaw mechanism where the lower jaw bones rotated inward and downward as the mouth opened, turning inward-facing tooth whorls outward to snag slippery prey. As the mouth snapped shut, the teeth rotated back inside, hooking food tightly and driving it toward the gullet.
PrehistoricMarineCarnivorous
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyAmmonoids, Conodonts, Small placoderms
Predators
- Dunkleosteus terrelli
- Titanichthys agassizi
- Phoebodus saidselhachmii
ThreatsLate Devonian extinction events and large marine apex predators
HabitatsWarm, shallow epicontinental seas and marine basins
Life spanUnknown (estimated 10–20 years)
Classification
- FamilySymmoriidae
- GenusFerromirum
- SpeciesFerromirum oukherbouchi
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Extinct species known strictly from fossilized remains.
Responsible observation
- Museum Viewing: Examine high-resolution micro-CT reconstructions in natural history exhibits to see its articulated jaw mechanism.
- Fossil Etiquette: Do not disturb protected paleontological heritage sites in the Anti-Atlas region without institutional permits.
Same Order Slate Weasel / CC BY 4.0 · cc-by
Predator (c) James St. John, some rights reserved (CC BY) · cc-by
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