Fauna
Invertebrate · GBIF taxon 8733379

Yawunik kootenayi

Yawunik kootenayi

Yawunik kootenayi patrolled middle Cambrian coastal waters as an agile, dual-purpose predator equipped with specialized frontal limbs. These grasping appendages ended in three robust claws lined with fine teeth alongside elongated, whip-like flagella used to sense both chemical and physical signals in murky waters. Undulating paddle-like limbs along its segmented trunk propelled the animal through the water column, allowing it to ambush smaller invertebrates across the prehistoric sea floor.

CarnivorousMarine
Yawunik kootenayi reference
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & prey
  • Palaeoscolecid worms
  • Isoxys acutangulus
  • Hyoliths
Predators
  • Anomalocaris canadensis
  • Titanokorys gainesi
  • Cambroraster falcatus
ThreatsCambrian oceanographic turnovers and radiodont apex predators
HabitatsCambrian marine waters and shallow benthic basins
Life span1–3 years (estimated)
  1. FamilyLeanchoiliidae
  2. GenusYawunik
  3. SpeciesYawunik kootenayi
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Extinct prehistoric species known only from fossil deposits; safe to observe.
Responsible observation
  • Fossil Examination: Look closely at carbonaceous films under oblique light to distinguish fine appendage flagella.
  • Legal Protection: Fossil collection within Kootenay National Park is strictly prohibited without specialized scientific permits.
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