Aspidaeglina Explained

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.^[1]

Distribution

• A. miranda is known from the Lower Ordovician of the Czech Republic (Arenig, Klabava Formation).^[2]
• A. striata occurs in the Lower Ordovician of China (Pagoda Formation of southwestern Shaanxi).^[3]

Notes and References

1. Sepkoski . Jack . A compendium of fossil marine animal genera (Trilobita entry) . Bulletins of American Paleontology . 364 . 560 . 2002 . 2008-01-12 . dead . https://web.archive.org/web/20060905162524/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=307&rank=class . 2006-09-05 .
2. Book: R.C. Moore. 1959. Treatise on Invertebrate Paleontology. Part O – Arthropoda (Trilobitomorpha).
3. Zhou Zhiyi . Zhou Zhiqiang . 2009 . Ordovician cyclopygid trilobites from the Pagoda Formation of southwestern Shaanxi, China . AAP Memoir . 37 . 87–101 . https://archive.today/20130620025724/http://159.226.74.248:8000/bbzl_view.jsp?wztm=Ordovician+cyclopygid+trilobites+from+the+Pagoda+Formation+of+southwestern+Shaanxi,+China . dead . 20 June 2013 . 7 June 2013 .