Yunnanocephalus
Encyclopedia
Yunnanocephalus is an extinct genus
ptychopariid trilobite
. It lived during the late Atdabanian stage, which lasted from 530 to 524 million years ago during the early part of the Cambrian Period. It was a "moderately common" member of the Chengjiang Fauna.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
ptychopariid trilobite
Trilobite
Trilobites are a well-known fossil group of extinct marine arthropods that form the class Trilobita. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period , and they flourished throughout the lower Paleozoic era before...
. It lived during the late Atdabanian stage, which lasted from 530 to 524 million years ago during the early part of the Cambrian Period. It was a "moderately common" member of the Chengjiang Fauna.
Links
- "ORDER PTYCHOPARIIDA" at trilobite.info http://www.trilobites.info/ordptychopariida.htm