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Scientists Describe Huayracursor Jaguensis, a Near-Complete Triassic Dinosaur That Shifts the Sauropodomorph Timeline

The Nature paper presents an articulated skeleton from Quebrada de Santo Domingo assigned to Bagualasauria.

Overview

  • The CONICET-led team, headed by Martín Hechenleitner at CRILAR, formally names the species in a peer-reviewed study.
  • Dating to roughly 230–225 million years ago, the find places the animal among the earliest known sauropodomorphs.
  • The specimen preserves part of the skull, a complete vertebral column through the tail, and largely intact fore and hind limbs.
  • Analyses indicate a longer neck and relatively small skull for its body size, with these traits appearing 5–8 million years earlier than previously inferred.
  • Work at the high-altitude Quebrada de Santo Domingo underscores the Precordillera’s importance alongside Ischigualasto and southern Brazil for Triassic dinosaur research.