Fauna
Amphibian

Syndyodosuchus tetricus

Syndyodosuchus tetricus

Syndyodosuchus tetricus was a slender, predatory temnospondyl amphibian that hunted along freshwater river deltas and floodplains during the Middle Permian. Equipped with a moderately elongated, flattened skull lined with recurved teeth, it operated much like a small crocodilian by ambushing fish and smaller aquatic tetrapods from shallow margins. Fossil specimens preserved in the coal-bearing Inta Formation highlight its specialization for life in temperate, swampy wetland systems of ancient European Russia.

PrehistoricCarnivoreFossil
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyPalaeoniscoid fish, Smaller aquatic amphibians, Aquatic invertebrates
Predators
  • Larger temnospondyls
  • Early predatory therapsids
ThreatsEnvironmental changes and Permian climate shifts (prehistoric extinction)
HabitatsPermian river systems, oxbow lakes, and deltaic swamps
Life spanUnknown (estimated 10–20 years)
  1. FamilyIntasuchidae
  2. SpeciesSyndyodosuchus tetricus
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 exclusively from Permian fossil remains.
Responsible observation
  • Fossil Observation: Study prepared cranial material and diagnostic tooth rows in regional museum paleontology collections.
  • Stratigraphic Context: Look for associated fauna in siltstones and sandstones from Middle Permian coal-bearing formations.
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