Annamitella

Extinct genus of trilobite

Annamitella Temporal range: Arenig^[1]^[2]
Conservation status
Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Corynexochida
Superfamily:	Leiostegiacea
Family:	Leiostegiidae
Genus:	Annamitella

Annamitella Mansuy 1916 is a genus of trilobite, extinct marine arthropods. Annamitella lived from the Arenig to the Llandeilo age of the Ordovician Period from 478.6 to 460.9 million years ago.^[3]

Distribution

The genus has been reported from:

Molles, San Juan and Suri Formations, Argentina
Nora Formation, Australia
Dawan, Honghuayuan, Laozai, Xiaqiaojia, Duoquanshan, Yingou, Yehli and Shihtzupu Formations, China
Alakul and Uzunbulak Formations, Kazakhstan

References

^ Fortey and Shergold, Early Ordovician trilobites Nora Fm., 1984
^ Fortey and Cocks, Palaeontological evidence bearing on global Ordovician-Silurian continental reconstructions, 2003;
^ Finney, Global series and stages for the Ordovician System: A progress report, 2005