Species
Ianthasaurus hardestii
Ianthasaurus hardestiiIanthasaurus hardestii was a small, agile sail-backed synapsid that scurried through the equatorial river margins of the Late Carboniferous. Unlike its massive herbivorous descendants, this basal edaphosaur possessed slender jaws lined with sharp, pointed teeth adapted for snatching swift insects and small tetrapods. Its delicate dorsal sail, supported by elongated neural spines bearing small lateral tubercles, served early roles in thermoregulation and visual signaling.
FossilSail-backedInsectivore
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—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyCarboniferous insects, Myriapods, Small terrestrial vertebrates
Predators
- Large predatory synapsids
- Early semi-aquatic tetrapods
ThreatsPermo-Carboniferous climate aridification and environmental shifts
HabitatsCarboniferous river deltas, floodplains, and estuarine forests
Life spanUnknown (extinct fossil species)
Classification
- FamilyEdaphosauridae
- SpeciesIanthasaurus hardestii
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
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- Why interaction risk is low
- Extinct prehistoric species known only from fossilized skeletal remains.
Responsible observation
- Fossil Identification: Look for slender vertebral spines lined with small lateral crossbars.
- Dental Clues: Check jaw specimens for sharp, pointed teeth indicating insectivory.
Contemporary Jean Albert Gaudry / Public domain · cc0
Close Relative Jonathan Chen / CC BY-SA 4.0 · cc-by-sa
Distant Relative H. Zell / CC BY-SA 3.0 · cc-by-sa
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