Species
Isisfordia duncani
Isisfordia duncaniIsisfordia duncani represents a monumental step in crocodilian evolution, showcasing transitional traits between ancient basal archosaurs and true eusuchians. Inhabiting the meandering braided river channels of mid-Cretaceous eastern Australia, this diminutive predator possessed ball-and-socket vertebrae alongside a nearly closed secondary palate. These vital structural adaptations allowed it to safely breathe while restraining struggling prey under the surface of prehistoric billabongs.
FossilCarnivore
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyTeleost fish, Early amphibians, Aquatic invertebrates
Predators
- Australovenator wintonensis
- Cretaceous pterosaurs
ThreatsPredation by theropod dinosaurs and localized drought events
HabitatsCretaceous freshwater river channels, floodplains, and billabongs
Life spanUnknown; estimated 15–25 years
Classification
- FamilyIsisfordiidae
- SpeciesIsisfordia duncani
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Extinct species known only from Cretaceous fossil material.
Responsible observation
- Fossil Viewing: Examine holotype fossils and reconstructed casts in Australian museum collections.
- Anatomy Study: Look for the advanced secondary palate and procoelous vertebrae in cranial casts.
Co-occurring Predator Talisen / CC BY 2.0 · cc-by
Image unavailableCo-occurring Herbivore 
Modern Relative (c) Bernard DUPONT, some rights reserved (CC BY-SA) · cc-by-sa
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