Langstonia huilensis

Langstonia huilensis, a large sebecosuchian crocodylomorph from the Middle Miocene of Colombia (~12 mya). About 2.7m in length (8′10″), it was an active terrestrial predator with long upright limbs, a deep skull with powerful jaw muscles, and serrated flesh-tearing teeth.

The sebecosuchians were a diverse and widespread group, first appearing in the Late Cretaceous and living through the K-Pg mass extinction well into the Cenozoic. Fossils have been found in Europe, North Africa, and Asia – but they were most successful in the isolated continent of South America, surviving all the way up until at least the Middle Miocene and sharing the ecological niches for large land predators with terror birds and sparassodonts.