''Birmanites'' is a genus of

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 At ...

s in the order

Asaphida Asaphida is a large, morphologically diverse order of trilobites found in marine strata dated from the Middle Cambrian until their extinction during the Silurian. Asaphida contains six superfamilies (Anomocaroidea, Asaphoidea, Cyclopygoidea, ...

, family ''

Asaphidae Asaphidae is a family of asaphid trilobites. Although the first genera originate in Upper Cambrian marine strata, the family becomes the most widely distributed and most species-rich trilobite family during the Ordovician. 754 species assigne ...

''. They lived in the

Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start ...

period, from the

Tremadocian The Tremadocian is the lowest stage of Ordovician. Together with the later Floian Stage it forms the Lower Ordovician Epoch. The Tremadocian lasted from to million years ago. The base of the Tremadocian is defined as the first appearance of the ...

age until the Lower

Ashgillian The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. The ...

age (488.3-449.5 million years ago). These

arthropod Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arth ...

s were a low-level

epifauna Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is ''flora'', and for fungi, it is ''funga''. Flora, fauna, funga and other forms of life are collectively referred to as '' biota''. Zool ...

, fast-moving and detritivore.

Distribution

Ordovician of Canada, China, the Czech Republic, Ireland, Italy, Sweden, the United Kingdom; Llandeilo of China; Arenigian of Argentina, China.

List

* Birmanites yunnanensis (China)

References

''Birmanites''
at Biolib * Sepkoski, Jac
Sepkoski's Online Genus Database – Trilobita

Paleobiology Database
Asaphidae Asaphida genera Prehistoric life of Europe Silurian trilobites Cambrian trilobites Ordovician trilobites of Asia Cambrian first appearances Silurian extinctions Ordovician trilobites of Europe Fossils of the Czech Republic Letná Formation Ordovician trilobites of South America Fossils of Argentina Tremadocian Floian Dapingian Darriwilian Sandbian Paleozoic life of Quebec {{Asaphida-stub