Iaceornis
| Iaceornis | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | Avialae |
| Clade: | Ornithuromorpha |
| Clade: | Ornithurae |
| Genus: | †Iaceornis Clarke, 2004 |
| Species: | †I. marshi
|
| Binomial name | |
| †Iaceornis marshi Clarke, 2004
| |
Iaceornis is a
ornithuran dinosaurs closely related to modern birds. It was endemic to North America during the Late Cretaceous, living about 83.5 million years ago. It is known from a single fossil specimen found in Gove County, Kansas
(USA), and consisting of a partial skeleton lacking a skull.
Since it was first discovered by
Apatornis celer. Because it is relatively complete, most discussions of Apatornis actually focused on the Iaceornis fossil. In 2004, paleontologist Julia A. Clarke showed that the skeleton actually differed in important characteristics of the wing bones from the true, holotype specimen of Apatornis. Therefore, she assigned the more complete remains to a new genus and species, Iaceornis marshi, meaning "Marsh's neglected bird".[1]
In Clarke's
modern birds.[1]
References
- ^ a b Clarke, J.A. (2004). "Morphology, phylogenetic taxonomy, and systematics of Ichthyornis and Apatornis (Avialae: Ornithurae)." Bulletin of the American Museum of Natural History, 286: 1-179. PDF fulltext