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Scientists Describe Tainrakuasuchus Bellator, A Triassic Crocodile-Line Predator From Brazil

The peer-reviewed description links the 240-million-year-old species to African relatives, underscoring Triassic connections across Pangaea.

Overview

  • Tainrakuasuchus bellator is identified as a pseudosuchian carnivore about 2.4 meters long and roughly 60 kilograms, predating the first dinosaurs.
  • The partial skeleton, found in May 2025 in Dona Francisca, preserves parts of the lower jaw, vertebrae and pelvis, with lab work revealing armor-like osteoderms.
  • Authors infer a hunting style built on speed and precision, with a long neck and slender jaws bearing sharp, recurved teeth to seize prey.
  • Phylogenetic analysis indicates a close relationship to Tanzania’s Mandasuchus, supporting faunal links between South America and Africa during the Triassic.
  • Limbs were not recovered so locomotion remains uncertain, though researchers suggest a quadrupedal stance, and the study appears in the Journal of Systematic Palaeontology.