''Ushbaspis'' is an
extinct genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of
redlichiid
Redlichiida is an order of trilobites, a group of extinct marine arthropods. Species assigned to the order Redlichiida are among the first trilobites to appear in the fossil record, about halfway during the Lower Cambrian. Due to the difficulty ...
trilobite
Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the ...
s in the family
Redlichiidae
Redlichiidae is a family of redlichiid trilobites which lived from the Botomian to the Middle Cambrian period. It contains the following genera, divided between five subfamilies:
Redlichiinae
* '' Redlichia'' (type genus)
* '' Conoredlichia'' ...
. It lived during the early part of the
Botomian stage,
which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the
Cambrian Period
The Cambrian Period ( ; sometimes symbolized Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (m ...
. Fossils of the genus have been found in the
Shabakty Formation
The Shabakty ( kk, Шабақты; russian: Шабакты) is a river in southern Kazakhstan. It has a length of and a drainage basin of .Google Earth
The river flows across Sarysu District of the Zhambyl Region. There are two inhabited plac ...
of Kazakhstan.
References
Redlichiidae
Redlichiida genera
Cambrian trilobites of Asia
Fossils of Kazakhstan
Fossil taxa described in 1965
{{Redlichiida-stub
Cambrian genus extinctions