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Marasuchus lilloensis

By Michael Alan Prestwood

Tue 28 May 2024
Published 2 years ago.
Updated 2 weeks ago.
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Marasuchus lilloensis

240 Million Years Ago
Elongated hind limbs, better running, reduced forelimbs

Before dinosauromorphs like Asilisaurus, the evolutionary lineage would include earlier archosaurs. One such early archosaur is Marasuchus lilloensis, which lived around 240 million years ago. Marasuchus exhibits several primitive features that are on the evolutionary path towards dinosaurs.

  • Kingdom: Animalia > Phylum: Chordata > Class: Reptilia > Order: Dinosauriformes
  • 30 to 40 cm (12 to 16 inches)
  • Found in Argentina, South America
  • primarily bipedal
  • carnivore

— map / TST —

Michael Alan Prestwood
Author & Natural Philosopher
Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.
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