''Ovatoryctocara granulata'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of corynexochid

trilobite Trilobites (; meaning "three-lobed entities") are extinction, extinct marine arthropods that form the class (biology), class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most succ ...

from the

Cambrian The Cambrian ( ) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordov ...

. Its first appearance is one of the proposals for the base of

Wuliuan The Wuliuan stage is the fifth stage of the Cambrian, and the first stage of the Miaolingian Series of the Cambrian. It was formally defined by the International Commission on Stratigraphy in 2018. Its base is defined by the first appearance of t ...

(The other proposal having been '' Oryctocephalus indicus''). The species was first formally described by the Russian paleontologist N.Ye. Tchernysheva in 1962. ''Ovatoryctocara granulata'' appears close to the base of the ''Ovatoryctocara'' trilobite zone and can be found up to the ''Kounamkites'' zone.

References

Oryctocephalidae Cambrian trilobites Fossil taxa described in 1962 Index fossils {{Corynexochida-stub