Entelognathus
| Entelognathus primordialis Temporal range: Late Silurian | |
|---|---|
| Holotype, Paleozoological Museum of China | |
| Life reconstruction of Entelognathus primordialis | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | †incertae sedis |
| Genus: | †Entelognathus Zhu et al., 2013 |
| Species: | †E. primordialis |
| Binomial name | |
| †Entelognathus primordialis Zhu et al., 2013 | |
Entelognathus primordialis (“primordial complete jaw”) is an early placoderm from the late Silurian (Ludlow epoch) of Qujing, Yunnan, 419 million years ago.
A team led by Min Zhu of the Academy of Sciences' Institute of Vertebrate Paleontology and Paleoanthropology in Beijing discovered the intact, articulated fossil in rock formations at Xiaoxiang reservoir.