Named By: Alfred S. Romer - 1972.
Classification: Chordata, Reptilia, Archosauria, Pseudosuchia, Suchia, Gracilisuchidae.
Species: G. stipanicicorum (type).
Size: About 30 centimetres long.
Known locations: Argentina - Chaņares Formation.
Time period: Anisian to Ladinian of the Triassic.
Fossil representation: At least two individuals.
Gracilisuchus is a very Ancient, and very small relative of the crocodiles that we know today. Gracilisuchus however seems to have been mostly terrestrial walking about on four legs, but also having the ability to rear up and walk on just the two rear legs. The small size and gracile (hence the name) build of Gracilisuchus meant that it would have been limited to hunting only small vertebrates, and possibly larger invertebrates.
- The Chaņares (Argentina) Triassic reptile fauna. An early ornithosuchid pseudosuchian, Gracilisuchus stipanicicorum, gen. et sp. nov. - Breviora 389:1-24. - Alfred S. Romer - 1972.
- Hind limb osteology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia). - Earth and Environmental Science Transactions of the Royal Society of Edinburgh 102 (2): 105–128 - A. Lecuona & J. B. Desojo - 1972.