Article · Wikipedia archive · Last revised Jun 30, 2026

Annamitella

Annamitella 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.

Last revised
Jun 30, 2026
Read time
≈ 1 min
Length
117 w
Citations
3
Source
Annamitella
Temporal range: Arenig12
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Artiopoda
Class: Trilobita
Order: Corynexochida
Family: Leiostegiidae
Genus: Annamitella
Mansuy, 1916

Annamitella 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

References

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