Fish
Arandaspis prionotolepis
Arandaspis prionotolepisArandaspis prionotolepis was one of the earliest armored, jawless vertebrates to swim Earth's prehistoric oceans. Propelled by an undulating, tadpole-like tail, it skimmed the sandy floors of shallow epicontinental seas beneath a protective carapace of grooved bony plates. Lacking true jaws or paired fins, it relied on a downward-facing mouth slit to scoop up organic detritus and soft invertebrates from the seabed.
PrehistoricArmoredMarine
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyMarine detritus, Microscopic plankton, Benthic invertebrates
Predators
- Giant nautiloids
- Eurypterids
ThreatsLate Ordovician extinction events and oceanic changes
HabitatsShallow coastal waters and epicontinental marine shelves
Life spanUnknown
Classification
- FamilyArandaspididae
- GenusArandaspis
- SpeciesArandaspis prionotolepis
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Extinct fossil species, posing no risk to observers.
Responsible observation
- Museum Collections: Study fossil impressions and skeletal casts in Australian paleontological exhibits.
- Fossil Identification: Look for distinctive elongated scales that resemble tiny grains of rice.
Close Relative Baranov, Gennadi / CC BY 4.0 · cc-by
Relative Jonathan Chen / CC BY-SA 4.0 · cc-by-sa
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