Dinosauromorpha

has part:

• Dinosaur

  Sources: Footprints pull origin and diversification of dinosaur stem lineage deep into Early Triassic

• Nyasasaurus

  Sources: The oldest dinosaur? A Middle Triassic dinosauriform from Tanzania

Appears in1 item

• 
  The Age of Dinosaurs1 item
  • Dinosaur cousins leave footprintsc. 250 Ma

Sources

1. ArticleFootprints pull origin and diversification of dinosaur stem lineage deep into Early Triassic