Fauna
Species

Opetiosaurus bucchichi

Opetiosaurus bucchichi

Opetiosaurus bucchichi patrolled the warm, shallow coastal lagoons of the ancient Tethys Ocean during the Late Cretaceous epoch. Equipped with a slender body, paddle-like limbs, and a flexible swimming tail, this agile marine reptile preyed on small aquatic organisms along island shorelines. Its skeletal anatomy reveals a crucial evolutionary transition connecting terrestrial squamates to giant oceanic mosasaurs.

Marine ReptilePrehistoric
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preySmall bony fish, Crustaceans, Cephalopods
Predators
  • Prehistoric sharks
  • Large marine reptiles
ThreatsLarger marine reptiles and oceanic sharks
HabitatsWarm shallow marine carbonate platforms and coastal lagoons
Life spanEstimated 10–20 years
  1. FamilyAigialosauridae
  2. SpeciesOpetiosaurus bucchichi
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Extinct species known only from fossil deposits; harmless.
Responsible observation
  • Fossil Examination: View preserved specimens and comparative casts in natural history museum collections.
  • Anatomy Observation: Check limestone slabs for transitional limb digits and elongate swimming vertebrae.
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