Apatornis celer
- Time
- 83.6–89.8 million years ago
- Period
- Unknown
- Known sites
- 1

Summary
Apatornis is a genus of ornithuran dinosaurs endemic to North America during the late Cretaceous. It currently contains a single species, Apatornis celer, which lived around the Santonian-Campanian boundary, dated to about 83.5 million years ago. The remains of this species were found in the Smoky Hill Chalk of the Niobrara Formation in Kansas, United States. It is known from a single fossil specimen: a synsacrum, the fused series of vertebrae over the hips.
Source: Wikipedia - Apatornis
Known Sites
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