Fauna
Species

Aspidorhynchus acutirostris

Aspidorhynchus acutirostris

Aspidorhynchus acutirostris was a slender, torpedo-shaped predatory fish that prowled the warm, shallow seas and lagoons of Late Jurassic Europe. Equipped with heavy ganoid scales, a symmetrical tail fin, and an elongated upper jaw forming a sharp rostrum, it darted forward with sudden bursts of speed to ambush smaller aquatic prey. Famous fossil specimens from the Solnhofen Limestone reveal that it occasionally snared low-flying pterosaurs such as Rhamphorhynchus, dragging both predator and prey to the anoxic seafloor.

FossilPredatory
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyLeptolepides sprattiformis, Belemnites, Small crustaceans
Predators
  • Pliosaurs
  • Metriorhynchid crocodylomorphs
  • Hybodont sharks
ThreatsNatural ecological changes during the Mesozoic extinction intervals
HabitatsWarm shallow epicontinental seas and coastal lagoons
Life spanEstimated 5–15 years
  1. FamilyAspidorhynchidae
  2. SpeciesAspidorhynchus acutirostris
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 remains.
Responsible observation
  • Museum Viewing: Examine articulated Solnhofen fossils to observe the needle-like rostrum and dense ganoid scales.
  • Fossil Identification: Look for the characteristic overhanging upper jaw, which easily distinguishes it from other Jurassic ray-finned fish.
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