Temporal range: Ordovician (Arenig) 
Aspidaeglina is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Arenig stage of the Ordovician Period, a faunal stage which lasted from approximately 473 to 470 million years ago.
- A. miranda is known from the Lower Ordovician of the Czech Republic (Arenig, Klabava Formation).
- A. striata occurs in the Lower Ordovician of China (Pagoda Formation of southwestern Shaanxi).
- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology 364: 560. Retrieved 2008-01-12.
- R.C. Moore, ed. (1959). Treatise on Invertebrate Paleontology. Part O – Arthropoda (Trilobitomorpha).
- Zhou Zhiyi; Zhou Zhiqiang (2009). "Ordovician cyclopygid trilobites from the Pagoda Formation of southwestern Shaanxi, China". AAP Memoir 37: 87–101. Retrieved 7 June 2013.
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