Oncagnostus
Encyclopedia
Oncagnostus is a genus of trilobite
in the order Agnostida
, which existed in what is now Shandong
, China
. It was described by Whitehouse in 1936, and the type species is Oncagnostus hoi, which was originally described as a species of Agnostus
by Sun in 1924.
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...
in the order Agnostida
Agnostida
Agnostida is an order of arthropod which first developed near the end of the Early Cambrian period and thrived during the Middle Cambrian. They are present in the lower Cambrian fossil record along with trilobites from the Redlichiida, Corynexochida, and Ptychopariida orders...
, which existed in what is now Shandong
Shandong
' is a Province located on the eastern coast of the People's Republic of China. Shandong has played a major role in Chinese history from the beginning of Chinese civilization along the lower reaches of the Yellow River and served as a pivotal cultural and religious site for Taoism, Chinese...
, China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
. It was described by Whitehouse in 1936, and the type species is Oncagnostus hoi, which was originally described as a species of Agnostus
Agnostus
Agnostus is a genus of trilobites that lived approximately 540 to 438 million years ago. The agnostids were small , with two thoracic segments and a large tail....
by Sun in 1924.