Citipati

Citipati osmolskae was a large oviraptorid dinosaur from the Late Cretaceous of Mongolia, around 75 to 71 million years ago. With its distinctive tall, cassowary-like head crest, toothless beak, and fully feathered body, it would have cut a striking figure in the ancient Gobi Desert environment. At roughly 2.5 to 3 meters long, it was one of the largest known oviraptorids.

The most remarkable aspect of Citipati is how it was preserved. Multiple specimens have been found in brooding positions directly on top of their nests, with arms spread protectively over the eggs in a posture identical to how modern birds incubate. These individuals were likely killed suddenly by sandstorms and preserved in the act of parenting, providing some of the most compelling evidence linking dinosaur behavior to that of living birds.

Discovered at Ukhaa Tolgod in the Djadochta Formation during American Museum of Natural History expeditions in the 1990s, Citipati was formally named in 2001 by James Clark, Mark Norell, and Rinchen Barsbold. The genus name means 'funeral pyre lord,' a reference to a figure in Buddhist mythology, while the species honors Polish paleontologist Halszka Osmólska.

For decades, the famous brooding specimens were mistakenly attributed to Oviraptor—ironically, this means the very evidence that 'egg thief' was actually a caring parent belonged to a different dinosaur entirely. Citipati's diet remains debated, but its powerful beak could likely handle a variety of foods including hard-shelled prey, plants, and small animals.